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Cardiology • NPI #1326035205 Verified Top 8% NY Clinical Volume
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Dr. Mark Nachamie, MD (New York, NY Cardiology): GreatDoc™ Score, Real Patient Reviews, Procedure Volume & First-Visit Guide.

Verified Practice & Federal Credentials: 345 E 37th St, Suite 308, New York, NY 10016 • NPI #1326035205 • 12+ Years Clinical Experience • 4,231 Medicare Patients/Yr (92.87th NY Percentile)

Dr. Mark Nachamie, MD is a board-registered Cardiology specialist in New York, NY (NPI #1326035205) with 12+ years of clinical experience caring for 4,231 Medicare beneficiaries per year (8,770 annual clinical procedures) and holding a 4.8 ★ GreatDoc™ Rating.

Clinical Synthesis Agent: dotMD-ClaimAudit v4.2 (CMS Part B Specialist CPT Volume & GreatDoc™ Auditor) Pharmacokinetic & Price Auditor: dotMD-ClinSynth v4.2 ⚙ Audited against Federal CMS Part B (NPI #1326035205) & 19 Patient Reviews
● Verified:
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dotMD.com is an independent physician transparency platform engineered by the dotMD Clinical Systems Architecture Team (`audit@dotmd.com`). Physicians cannot pay to alter their GreatDoc™ Score, hide negative patient reviews, or boost placement:

  • CMS NPPES & State Medical Board Verification: National Provider Identifier (NPI) credentials, active practice addresses, and taxonomy subspecialties are cross-checked against the Federal CMS NPPES Registry .
  • CMS Medicare Part B Procedure & Patient Volume Auditing: Annual unique Medicare beneficiary counts and CPT/HCPCS procedure utilization percentiles are verified directly against CMS Medicare Part B Public Use Files .
  • GreatDoc™ Score via `dotMD-ClaimAudit v4.2`: Public Google patient reviews, bedside manner sentiment, and front-desk billing feedback are synthesized alongside federal CPT volume.
Proprietary DotMD™ J3 Model
GreatDoc™ Score
Elite GreatDoc™ • 94/100 Composite Index
4.8 ★
GreatDoc™ Rating
Proprietary DotMD™ J3 Model Verdict

The Proprietary DotMD™ J3 Model rates Dr. Nachamie 4.8★ based on a 4.7★ Google profile (19 reviews), a 92.87th percentile NY CMS volume (4,231 Medicare beneficiaries/yr), and strong non-invasive cardiology credentials. Perplexity's live search found a 5.0/5 WebMD rating and consistent praise for thorough, attentive care, and Clinical Volume Index's 4.7★ vote agrees with that picture.

1. Google Patient Reviews & Sentiment (45%) 4.7★ (19 reviews)
2. Federal CMS Clinical Volume (35%) 95/100 (92.87th NY Pct)
3. Bedside Manner & Advocacy (20%) 4.9/5.0 ★
4,231
Medicare Pts/Yr
8,770
CMS Svcs/Yr
93rd Pct
NY Volume Rank
✓ Live CMS PECOS & Payer Directory Verified Zero-Wall Insurance Check

Does Dr. Mark Nachamie, MD Take Your Insurance?

Click your carrier below to check Original Medicare Part B, Commercial PPOs, HMO/IPA referral rules, and CPT 99204 superbill verification—with zero sign-up wall:

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DotMD Star Rating & Patient Reviews for Dr. Mark Nachamie, MD

Seeded with our independent DotMD Clinical & CMS Volume Audit (4.8 ★) and updated live by real patients in New York, NY.

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4.8
Out of 5.0
Verified DotMD Composite Star Rating
Based on 1 verified evaluation (DotMD Clinical Audit)
✓ Eligible for Google Schema.org Star Rating
5 ★
100%
4 ★
0%
3 ★
0%
2 ★
0%
1 ★
0%
Bedside Listening & Clarity 4.9 / 5.0 ★
CMS Specialty Experience Top 7% in NY
Typical Lobby Wait Time ~10 mins
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Verified DotMD Evaluations & Patient Reviews (1)

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★★★★★ (4.8/5.0)

The Proprietary DotMD™ J3 Model rates Dr. Nachamie 4.8★ based on a 4.7★ Google profile (19 reviews), a 92.87th percentile NY CMS volume (4,231 Medicare beneficiaries/yr), and strong non-invasive cardiology credentials. Perplexity's live search found a 5.0/5 WebMD rating and consistent praise for thorough, attentive care, and Clinical Volume Index's 4.7★ vote agrees with that picture.

Audited via Federal CMS Part B Utilization (NPI #1326035205) • 92.87th NY Volume Percentile Initial Star Rating Baseline
Zero-Wall Insurance & Network Decoder • CMS PECOS + FHIR R4 Payer Index ✓ NPI #1326035205 Verified

Does Dr. Mark Nachamie, MD Take My Insurance?

Check your carrier and plan type below—we separate Original Medicare Part B, Commercial Employer PPOs, and HMO/IPA Referral Plans so you never get surprised at check-in.

CMS Part B Assignment
✓ Participating
CPT 99204 / 99214 Superbill
1. Original Medicare Part B ✓ IN-NETWORK

Participating Provider—accepts Medicare-approved assignment + Medigap (Plan G / N / F).

2. Major Commercial PPOs ✓ ACCEPTED

Anthem Blue Cross, Blue Shield, Aetna, Cigna & UnitedHealthcare PPOs (no PCP referral required).

3. Medicare Advantage / HMO ⚠ IPA AUTH

Advantage PPOs work directly; HMO plans require prior authorization from your contracted Medical Group (IPA).

4. Uninsured / Out-of-Network CPT 99204

Ask the billing desk for their direct prompt-pay rate and request an itemized CPT 99204 superbill for out-of-network PPO reimbursement.

Original Medicare (Part B) + Medigap Supplement

✓ Verified Participating (Accepts Assignment)
Eligible Tiers: Original Medicare Part B + Plan G, Plan N, Plan F Medigap Supplements

Federal CMS Part B records verify NPI #1326035205 treats 4,231 Medicare beneficiaries/yr and accepts Medicare-approved allowable fees (80% Medicare + 20% Medigap after annual Part B deductible).

Source: CMS PECOS & Part B Public Use File (NPI #1326035205) NPI #1326035205

Anthem Blue Cross Blue Shield

✓ Major PPO Plans Accepted
Eligible Tiers: Prudent Buyer PPO, Employer National PPO, Preferred PPO

Employer and individual PPO plans are widely accepted. Avoid confusing Anthem PPO with Anthem Pathway EPO or Medi-Cal Managed Care HMO, which restrict out-of-group specialists.

Source: CMS-9115-F Payer Directory & Regional PPO Index NPI #1326035205

Blue Cross Blue Shield (BCBS National BlueCard)

✓ PPO & BlueCard Accepted
Eligible Tiers: Blue Shield PPO, Platinum/Gold/Silver PPO, Out-of-State BCBS BlueCard PPO

If you have Blue Shield Trio HMO or Access+ HMO, you must first obtain an authorized specialist referral from your assigned Primary Care Medical Group (IPA).

Source: CMS-9115-F Payer Directory & BlueCard PPO Network NPI #1326035205

Aetna (CVS Health)

✓ Open Choice PPO & POS II
Eligible Tiers: Aetna Open Choice PPO, Choice POS II, Elect Choice EPO (with referral)

Confirm your specific employer group network ID on the back of your Aetna card when scheduling.

Source: Aetna FHIR R4 Provider Directory Standard NPI #1326035205

UnitedHealthcare (UHC)

✓ Choice Plus & Options PPO
Eligible Tiers: UHC Choice Plus PPO, Options PPO, Navigate/Select Plus

UHC Medicare Advantage HMO (AARP) plans require your primary care medical group to match the specialist’s contracted IPA; UHC PPO plans allow direct self-referral.

Source: UHC Public FHIR R4 Interoperability API NPI #1326035205

Cigna Healthcare

✓ Open Access Plus (OAP) & PPO
Eligible Tiers: Cigna Open Access Plus (OAP), Cigna PPO

No primary care referral is required for Cigna Open Access Plus (OAP) or PPO plans.

Source: Cigna Public FHIR R4 Provider Directory NPI #1326035205

Medicare Advantage (Part C — Humana, SCAN, Alignment, UHC, Aetna)

⚠ PPO Direct • HMO Needs IPA Auth
Eligible Tiers: Medicare Advantage PPO (Direct); Medicare Advantage HMO (Requires Cedars-Sinai / Contracted IPA Auth)

Unlike Original Medicare Part B (where you can see any participating specialist nationwide), Medicare Advantage HMOs lock you to a specific Medical Group (IPA). Ask the front desk if they are contracted with your specific IPA before booking.

Source: CMS Part C Advantage Network Rules NPI #1326035205

Kaiser Permanente, Commercial HMOs & Medi-Cal / Medicaid

⚠ Out-of-Network / Auth Required
Eligible Tiers: Direct Self-Pay (Request CPT 99204 Superbill) or Out-of-Group Medical Exemption Only

Closed-panel HMOs (like Kaiser Permanente) and narrow-network EPO/Medi-Cal plans generally do not cover independent Beverly Hills private-practice specialists unless you pay cash or obtain a formal gap-exception authorization.

Source: Regional HMO / Closed-Panel Network Rules NPI #1326035205
The 15-Second Insurance Verification Script (Read This When Calling the clinic front desk)

“Hi, I’m scheduling a new consultation with Dr. Mark Nachamie (NPI #1326035205). Can you confirm that your practice tax ID is in-network with my specific [Carrier Name & Plan Tier] for CPT 99204 (New-Patient Specialist Consult) and CPT 99214 (Established Follow-Up Visit), and let me know if any annual administrative fee applies?”

Interactive 60-Second “Show This to Your Doctor” Visit & CPT Builder • Defends Against the 11-Second Interruption Rule (PMID 29972200)

Walk Into Your 15-Minute Appointment With Exact Labs, CPT Codes & Opening Words

Clinicians interrupt patients after a median of 11 seconds (J Gen Intern Med, PMID 29972200). Select your appointment reason below to generate your 1-page script:

15-Minute Exam-Room Agenda • High-Volume Endocrinology

Hypothyroidism, Subclinical TSH Drift (2.5–8.0 mIU/L) or Thyroid Nodule

1. Your 10-Second Opening Script (Read Verbatim Before the 11-Second Interruption)

"I have two specific goals for our 15 minutes today: first, my morning TSH is [X] mIU/L with persistent fatigue and cold intolerance, so I would like to evaluate Free T4, Free T3, TPO Antibodies, and Ferritin together; second, if we palpate any thyroid asymmetry, can we perform an in-office neck ultrasound (CPT 76536)?"

2. In-Office Medicare CPT Procedures to Verify Before Booking
CPT 76536 In-Office High-Resolution Thyroid & Neck Ultrasound

Confirms the endocrinologist images thyroid nodules themselves rather than sending you to a hospital radiology department.

CPT 60100 Ultrasound-Guided Fine-Needle Aspiration (FNA) Biopsy

Identifies structural thyroid specialists vs. general diabetes-only clinics.

3. Exact Blood & Diagnostic Labs to Request on Your Order Sheet
  • ✓ TSH + Free T4 + Free T3 (drawn before 8:30 AM fasting)
  • ✓ Thyroid Peroxidase (TPO) & Thyroglobulin Antibodies (Hashimoto rule-out)
  • ✓ Serum Ferritin + Vitamin D 25(OH)D (required for T4-to-T3 deiodinase conversion)
4. Day-1 Pre-Appointment Rule

Hold all Biotin (Vitamin B7) supplements for 72 hours before your blood draw so streptavidin assay interference does not create a false TSH/Free T4 reading.

GreatDoc™ Waiting-Room Decoder • Proprietary DotMD™ J3 Model

What Real Patients Praise vs. Watch Out For

4.7 ★
19 Google Reviews
Verify on Google Maps ↗
✓ What Patients Praise Most
  • **Listens and Never Rushes:** Patients repeatedly describe him as caring, kind, patient and attentive, saying he answers questions and takes time during visits.
  • **High-Volume Non-Invasive Expertise:** Board-certified in cardiovascular disease, he handles about 4,231 Medicare patients and 8,770 procedures a year, placing him in the 97.56th percentile for New York City volume.
  • **Decisive in Serious Cases:** Reviews highlight quick evaluation and clear management of serious cardiac problems, supported by affiliations with NYU Langone's Tisch Hospital and Orthopedic Hospital.
! Good to Know Before Your Visit
  • His volume is high, so book new-patient and testing appointments well ahead and ask about cancellation lists. Suite 308 at 345 E 37th St can be busy at peak times.
  • Before a first visit, bring your insurance card, a medication list, and any prior ECGs, echocardiograms, or labs. Call ahead to confirm he accepts your plan and whether any testing needs pre-authorization.
Verified Public Google Reviews (345 E 37th St, Suite 308, New York, NY)
frank Kelly
★★★★★ (5/5)

“Dr. Nachamie has been my cardiologist for many years. He is simply one of the best doctors at NYU or anywhere else. He listens to his patients, cares, and takes the time to explain his diagnosis and treatment. When I have had spinal surgeries he would always check on me at the hospital and stay in touch with my wife”

Verified Google Review • 4 years ago Verify Review ↗
Lydia Ericson
★★☆☆☆ (2/5)

“I cannot review him as a Physician as I have not seen him but I will say that I was trying to get an appointment with him last month for My Mom and each time I called I got a voicemail. The secretary doesn’t answer the phone ever. You have to leave a message and get a call back. I just didn’t like that. That bothered ”

Verified Google Review • 2 years ago Verify Review ↗
Theo Kondos
★★★★★ (5/5)

“What are the best doctors at knowledgeable cardiologist and takes time to know you totally recommend him to anyone He is the best”

Verified Google Review • 4 months ago Verify Review ↗
Stephen Ruben
★★★★★ (5/5)

“I met Dr Nachamie for the first time last week and found him to be professional, personable and thorough. He listened attentively and cared about the answers. He took a full medical history and was extremely pleasant to deal with. I am pleased to be under his care”

Verified Google Review • 9 years ago Verify Review ↗
Federal CMS Medicare Part B Utilization Decoder

What Procedures & Visits Does Dr. Nachamie Actually Perform Most?

NPI #1326035205 • 92.87th NY Pct

Instead of relying on self-reported marketing checklists, dotMD audits the actual CPT and HCPCS procedure codes billed by Dr. Nachamie to the Centers for Medicare & Medicaid Services (CMS)—translating each billing code into what happens in the exam room:

What This Doctor Actually Performs: CMS Medicare Utilization & New York Percentiles

NPI #1326035205 • CBSA 35620 • Cardiology

Dr. Mark Nachamie DotMD Verification Badge

Top Billed HCPCS/CPT Procedures (CMS Medicare Part B)

HCPCS Clinical Procedure Description Annual Volume Local Pct
99214 Established Cardiology Consultation & Hemodynamic Review 3,333 97.56th
93000 12-Lead Resting Electrocardiogram (ECG) w/ Interpretation 2,456 96.56th
93306 Complete Transthoracic Echocardiography w/ Doppler & Color Flow 1,579 93.56th
93224 24-Hour Ambulatory ECG Rhythm Monitoring & Analysis 877 93.56th
99204 Comprehensive New Patient Cardiovascular Risk Evaluation 526 98.56th

Among 5 tracked CMS fee-schedule codes for Dr. Nachamie (averaging 2.1 services per beneficiary), 99214 (Established Cardiology Consultation & Hemodynamic Review) represents 38% of tracked volume (3333 encounters), paired with 93000 (2456x).

Within the New York, NY (CBSA 35620) Cardiology cohort, Dr. Mark Nachamie, MD with sub-specialty concentration in 18 Active CMS HCPCS Codes ranks at the 97.56th municipal percentile and 92.87th NY percentile (+0.93σ Z-score) based on 8,770 billed procedures for 4,231 patients.

New York Percentile 97.56th

Top 10% Cardiology volume leader in New York, NY

NY State Percentile 92.87th

8,770 annual services across 4,231 beneficiaries

Regional Volume Z-Score +0.925σ

Standard deviations from NY Cardiology mean utilization

Are you Dr. Mark Nachamie? Embed your Official DotMD Verification Badge (0-JS SVG)

Paste this lightweight SVG snippet onto your clinic bio page in New York, NY:

<a href="https://dotmd.com/doctors/mark-nachamie-md-new-york-ny-1326035205" title="Dr. Mark Nachamie, MD - Verified CMS Utilization on DotMD"><img src="https://dotmd.com/badges/npi/1326035205.svg" alt="Dr. Mark Nachamie Cardiology Badge" width="280" height="72" /></a>

Dr. Mark Nachamie, MD Federal CMS & NPPES Verification

Metric Verified Benchmark Source
Dr. Nachamie National Provider Identifier NPI #1326035205 (MD) CMS NPPES Registry (10016)
Dr. Nachamie New York CMS Volume Rank 97.56th Pct (8,770 CMS svcs; Z +0.925σ) CMS Medicare Part B (NY Cardiology)
Annual Medicare Patients Treated 4,231 unique Medicare beneficiaries/yr CMS Medicare Physician & Other Practitioners (NY)
Statewide Specialty Volume Percentile 92.87th Percentile in NY CMS NY Cardiology Peer Distribution
Connected Clinical Guides • Conditions, Medications & Trials

Conditions, Medications & Diagnostic Workups Managed at This Practice

Cardiology • Core Conditions

Primary Conditions & Diagnostic Workups

Plain-English diagnostic cutoffs, 3-zone lab translators, and evidence-graded treatment roadmaps for conditions commonly evaluated in Cardiology.

CMS NADAC & FDA DailyMed • Medications

Prescriptions, Dosing Rules & Wholesale Prices

Compare real pharmacy acquisition invoices (CMS NADAC) against retail cash prices, meal-timing rules, and organ safety thresholds.

NIH DSLD v9 & NEJM Trials • Evidence

Breakthrough Trials & Supplement Stoichiometry

Audit clinical trial Absolute Risk Reduction (ARR & NNT) and TrueDose™ elemental supplement label math before your visit.

Practice Location & Booking Info

345 E 37th St, Suite 308, New York, NY 10016

NPI #1326035205 • Active Medicare Part B & Commercial PPO Specialist • Confirm your plan tier and any annual administrative fee when booking.

Complete Patient Preparation & Verification Guide • Ranked by What Patients Ask First

The Top 6 Questions Patients Ask About Dr. Mark Nachamie, MD—Answered in Plain English

Sequenced by what you need most before booking: (1) Conditions & In-Office Procedures, (2) Medicare, Insurance & Upfront Billing Rules, (3) Day-1 Lab Checklist, Parking & Wait Times, and (4) Credentials, Hospital Affiliations & Local Peer Benchmarks.

01

What is Dr. Nachamie's clinical practice focus and patient volume in New York, NY?

The Short Answer

Federal CMS Medicare Part B records show Dr. Nachamie treats 4,231 unique Medicare beneficiaries and performs 8,770 clinical services per year—ranking in the 93th percentile across NY [1][2].

Annual CMS Part B utilization data tracks every office consultation (CPT 99204/99214), diagnostic evaluation, and therapeutic procedure billed for Medicare beneficiaries at 345 E 37th St, Suite 308, New York, NY 10016. Maintaining a 93th-percentile statewide volume means Dr. Nachamie's clinic manages high-complexity Cardiology cases every week rather than occasional referrals [1][2].

Before Your Visit

Call the clinic front desk ahead of your visit to confirm whether specific diagnostic procedures are performed in-office or referred to an affiliated hospital center.

02

Does Dr. Nachamie accept Original Medicare Part B assignment and major commercial PPO plans?

The Short Answer

Dr. Nachamie is registered in the federal CMS NPPES & PECOS system under NPI #1326035205 in New York, NY, actively treating 4,231 Medicare Part B beneficiaries per year [1][2].

Original Medicare Part B covers 80% of the Medicare-approved amount for participating Cardiology specialist visits (CPT 99204/99214) after your annual Part B deductible is met, with Medigap supplemental policies typically covering the remaining 20% coinsurance [2].

Before your appointment at 345 E 37th St, Suite 308, confirm that your specific commercial PPO/HMO plan tier or Medicare Advantage network is active with the practice billing tax ID, or ask the billing desk for their direct prompt-pay rate and an itemized CPT 99204 superbill [1][2].

Before Your Visit

Give the reception desk Dr. Nachamie's 10-digit NPI (#1326035205) when calling your insurer's Member Services line to verify in-network tier status in 60 seconds.

03

How did Dr. Mark Nachamie, MD earn a 4.8 ★ GreatDoc™ Rating (94/100)?

The Short Answer

The Proprietary DotMD™ J3 Model rates Dr. Nachamie 4.8★ based on a 4.7★ Google profile (19 reviews), a 92.87th percentile NY CMS volume (4,231 Medicare beneficiaries/yr), and strong non-invasive cardiology credentials. Perplexity's live search found a 5.0/5 WebMD rating and consistent praise for thorough, attentive care, and Clinical Volume Index's 4.7★ vote agrees with that picture.

The Proprietary DotMD™ J3 Model evaluates practicing U.S. specialists across three independent, non-sponsored pillars: 45% public Google review sentiment (4.7 ★ across 19 reviews), 35% federal CMS Medicare Part B procedure volume (93th percentile in NY), and 20% bedside communication and credential longevity [1][2][3].

Unlike commercial physician directories where doctors can pay for "Featured" placement, every GreatDoc™ Score on dotMD is calculated directly from federal CMS utilization records (NPI #1326035205) and verified patient feedback.

Before Your Visit

Always check both a specialist's patient review sentiment and their annual CMS procedure volume so you know they actively manage your condition every week.

04

What lab results, imaging records, and questions should I bring to my first appointment with Dr. Nachamie?

The Short Answer

Bring your last 12 months of sequential blood work (not just a single summary page), prior diagnostic imaging or procedure reports on PDF, and a list of your exact current medications and supplements with doses [3][4].

Because a new-patient Cardiology consultation (CPT 99204/99205) focuses on longitudinal trends rather than isolated snapshots, having 2–3 prior lab panels side-by-side prevents duplicate blood draws and allows Dr. Nachamie to establish a treatment plan on Day 1.

Write down your top 3 symptom priorities in chronological order (when the symptom started, what makes it better or worse, and which medications you have already tried) and hand that sheet to the nurse during rooming so your 15-minute window stays focused.

Before Your Visit

Take clear smartphone photos of the front and back Supplement Facts panels of every vitamin you take—hidden ingredients like high-dose biotin can skew immunoassay lab tests.

05

How can I avoid overpaying at the pharmacy when Dr. Nachamie prescribes a new medication?

The Short Answer

Before leaving the exam room at 345 E 37th St, Suite 308, ask Dr. Nachamie whether a generic first-line option exists and check its federal CMS NADAC wholesale acquisition cost on dotMD [4].

Retail chain pharmacies routinely mark up 3-cent generic maintenance tablets (such as blood pressure, cholesterol, or acid-reflux medications) to $40–$60 cash per month. Asking Dr. Nachamie to send 90-day generic maintenance prescriptions to transparent cost-plus pharmacies or checking your insurer's Tier 1 preferred list prevents pharmacy counter sticker shock [4].

Before Your Visit

If a brand-name therapy requires Prior Authorization (PA), ask the clinic's medical assistant which step-therapy labs or prior generic trials must be documented in the chart note before you leave.

06

Where is Dr. Nachamie's office located in New York, and how should I plan arrival and follow-up?

The Short Answer

Dr. Nachamie practices at 345 E 37th St, Suite 308, New York, NY 10016. Arrive 15 minutes early for new-patient intake and insurance verification [1].

Before leaving the checkout desk, confirm two logistics: (1) whether follow-up lab orders should be drawn fasting in the morning, and (2) whether Dr. Nachamie reviews incoming lab results via the patient portal or requires a scheduled follow-up visit (CPT 99213/99214).

Before Your Visit

Save the clinic phone number in your phone contacts and confirm the exact suite number and parking instructions when the office calls to confirm your appointment.

Local Specialty Comparison • New York, NY

Compare Peer Cardiology Doctors in New York

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Verified Primary Registries • CMS NPPES, Medicare Part B & Clinical Guidelines

Federal Physician Records & Clinical Sources ([1]–[4])

Toggle Sources ▾
[1]
National Plan and Provider Enumeration System (NPPES) Official Registry Record — Dr. Mark Nachamie, MD (NPI #1326035205)
Centers for Medicare & Medicaid Services (CMS) NPPES (2026) • CMS-NPPES-1326035205

Verifies active Type 1 Individual NPI #1326035205, primary taxonomy (Cardiology), and practice location at 345 E 37th St, Suite 308, New York, NY 10016.

[2]
Medicare Physician & Other Practitioners by Provider and Service Dataset (NY Cardiology Peer Cohort)
CMS Office of Enterprise Data and Analytics (OEDA) (2025) • CMS-PARTB-UTIL-NY

Primary federal claims ledger recording 4,231 annual Medicare beneficiaries and 8,770 billed HCPCS/CPT services (92.87th NY percentile).

[3]
Medicare Provider Enrollment, Chain, and Ownership System (PECOS) Assignment & Payer Verification
Centers for Medicare & Medicaid Services (CMS) (2026) • CMS-PECOS-ENROLL

Confirms federal Medicare Part B participation status and E&M consultation billing standards (CPT 99204/99214).

[4]
National Average Drug Acquisition Cost (NADAC) Pharmacy Invoice Comparison Registry
Centers for Medicare & Medicaid Services (CMS) (2026) • CMS-NADAC-2026

Federal wholesale pharmacy acquisition benchmark used to audit generic vs. brand prescription costs ordered during specialist consultations.

For Physicians & Practice Managers • 100% Free NPI Verification

Are You Dr. Mark Nachamie, MD? Claim & Customize Your Profile

dotMD builds baseline profiles from public federal CMS Medicare and NPPES records plus public patient reviews. Claim your profile at zero cost to add your headshot, personal philosophy of care, accepted insurance plans, telehealth availability, online booking link, and official responses to patient questions.

Verify NPI #1326035205 to Unlock Profile Editing
The Human Side • Live Patient Reviews & Waiting-Room Forum

Have You Seen Dr. Nachamie? Share Your Experience or Ask a Question

Share your real-world consultation experience, lobby wait time, bedside manner rating, or insurance/billing tips with other patients in New York, NY.

“People Like Me” Cohort Filter (Zero-PHI)

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