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Nephrology Doctors Who Perform the Procedure You Need—and Take Your Insurance.

CKD staging via eGFR + Cystatin C and urine albumin-to-creatinine ratio (uACR), SGLT2i/finerenone nephron preservation, resistant hypertension, and kidney stone metabolic workups. Filter by your insurance carrier, state, or procedure below.

4. Complete Physician Directory

All Nephrology Physicians (2,364)

Page 6 of 66
Nephrology ★ 4.7

Dr. Hasan Shahab, MD

Orlando, FL 32825

★★★★★ 4.8 (25)
77th FL Pct

Top Billed Procedure: Chronic Kidney Disease eGFR, uACR & Electrolyte Management [CPT 99214] • CKD staging via eGFR + Cystatin C and urine albumin-to-creatinine ratio (uACR) & subspecialty diagnostics (3,385 CMS services/yr).

✓ Accepts Aetna ~$216 Cash
Nephrology ★ 4.7

Dr. Niall Mclaughlin, MD

Columbia, SC 29203

★★★★★ 4.8 (25)
77th SC Pct

Top Billed Procedure: Chronic Kidney Disease eGFR, uACR & Electrolyte Management [CPT 99214] • CKD staging via eGFR + Cystatin C and urine albumin-to-creatinine ratio (uACR) & subspecialty diagnostics (3,751 CMS services/yr).

✓ Accepts Aetna ~$209 Cash
Nephrology ★ 4.8

Dr. Dirk Hentschel, MD

Boston, MA 02115

★★★★★ 4.8 (25)
82nd MA Pct

Top Billed Procedure: Chronic Kidney Disease eGFR, uACR & Electrolyte Management [CPT 99214] • CKD staging via eGFR + Cystatin C and urine albumin-to-creatinine ratio (uACR) & subspecialty diagnostics (2,585 CMS services/yr).

✓ Accepts Aetna ~$227 Cash
Nephrology ★ 4.5

Dr. Sina Rahimi, DO

San Diego, CA 92103

★★★★★ 4.8 (25)
38th CA Pct

Top Billed Procedure: Chronic Kidney Disease eGFR, uACR & Electrolyte Management [CPT 99214] • CKD staging via eGFR + Cystatin C and urine albumin-to-creatinine ratio (uACR) & subspecialty diagnostics (1,761 CMS services/yr).

✓ Accepts Aetna ~$239 Cash
Nephrology ★ 4.8

Dr. Ravi Ramaswamy, MD

Middletown, NY 10940

★★★★★ 4.8 (25)
92nd NY Pct

Top Billed Procedure: Chronic Kidney Disease eGFR, uACR & Electrolyte Management [CPT 99214] • CKD staging via eGFR + Cystatin C and urine albumin-to-creatinine ratio (uACR) & subspecialty diagnostics (7,517 CMS services/yr).

✓ Accepts Aetna ~$232 Cash
Nephrology ★ 4.8

Dr. Ameet Kumar, MD

Newport News, VA 23606

★★★★★ 4.8 (25)
88th VA Pct

Top Billed Procedure: Chronic Kidney Disease eGFR, uACR & Electrolyte Management [CPT 99214] • CKD staging via eGFR + Cystatin C and urine albumin-to-creatinine ratio (uACR) & subspecialty diagnostics (1,142 CMS services/yr).

✓ Accepts Aetna ~$209 Cash
Nephrology ★ 4.4

Dr. Rouba Ghoussoub, MD

Belleville, IL 62226

★★★★★ 4.8 (25)
6th IL Pct

Top Billed Procedure: Chronic Kidney Disease eGFR, uACR & Electrolyte Management [CPT 99214] • CKD staging via eGFR + Cystatin C and urine albumin-to-creatinine ratio (uACR) & subspecialty diagnostics (795 CMS services/yr).

✓ Accepts Aetna ~$218 Cash
Nephrology ★ 4.6

Dr. Christine Chen, DO

Albuquerque, NM 87102

★★★★★ 4.8 (25)
50th NM Pct

Top Billed Procedure: Chronic Kidney Disease eGFR, uACR & Electrolyte Management [CPT 99214] • CKD staging via eGFR + Cystatin C and urine albumin-to-creatinine ratio (uACR) & subspecialty diagnostics (1,260 CMS services/yr).

✓ Accepts Aetna ~$209 Cash
Nephrology ★ 4.5

Dr. Nina Narasimhadevara, MD

Dorchester, MA 02124

★★★★★ 4.8 (25)
29th MA Pct

Top Billed Procedure: Chronic Kidney Disease eGFR, uACR & Electrolyte Management [CPT 99214] • CKD staging via eGFR + Cystatin C and urine albumin-to-creatinine ratio (uACR) & subspecialty diagnostics (1,040 CMS services/yr).

✓ Accepts Aetna ~$224 Cash
Nephrology ★ 4.5

Dr. Parineesha Nath, MD

Wexford, PA 15090

★★★★★ 4.8 (25)
20th PA Pct

Top Billed Procedure: Chronic Kidney Disease eGFR, uACR & Electrolyte Management [CPT 99214] • CKD staging via eGFR + Cystatin C and urine albumin-to-creatinine ratio (uACR) & subspecialty diagnostics (931 CMS services/yr).

✓ Accepts Aetna ~$209 Cash
Nephrology ★ 4.6

Dr. Ahmed Fawzy, MD

Elyria, OH 44035

★★★★★ 4.8 (25)
44th OH Pct

Top Billed Procedure: Chronic Kidney Disease eGFR, uACR & Electrolyte Management [CPT 99214] • CKD staging via eGFR + Cystatin C and urine albumin-to-creatinine ratio (uACR) & subspecialty diagnostics (1,254 CMS services/yr).

✓ Accepts Aetna ~$209 Cash
Nephrology ★ 4.6

Dr. Lawrence Stam, MD

Brooklyn, NY 11215

★★★★★ 4.8 (25)
48th NY Pct

Top Billed Procedure: Chronic Kidney Disease eGFR, uACR & Electrolyte Management [CPT 99214] • CKD staging via eGFR + Cystatin C and urine albumin-to-creatinine ratio (uACR) & subspecialty diagnostics (1,444 CMS services/yr).

✓ Accepts Aetna ~$232 Cash
Nephrology ★ 4.6

Dr. Anca Zegrean, MD

Libertyville, IL 60048

★★★★★ 4.8 (26)
73rd IL Pct

Top Billed Procedure: Chronic Kidney Disease eGFR, uACR & Electrolyte Management [CPT 99214] • CKD staging via eGFR + Cystatin C and urine albumin-to-creatinine ratio (uACR) & subspecialty diagnostics (2,905 CMS services/yr).

✓ Accepts Aetna ~$218 Cash
Nephrology ★ 4.6

Dr. Dipti Patel, MD

Baltimore, MD 21237

★★★★★ 4.8 (26)
47th MD Pct

Top Billed Procedure: Chronic Kidney Disease eGFR, uACR & Electrolyte Management [CPT 99214] • CKD staging via eGFR + Cystatin C and urine albumin-to-creatinine ratio (uACR) & subspecialty diagnostics (1,667 CMS services/yr).

✓ Accepts Aetna ~$209 Cash
Nephrology ★ 4.7

Dr. Sara Burgardt, MD

Fort Collins, CO 80525

★★★★★ 4.8 (26)
70th CO Pct

Top Billed Procedure: Chronic Kidney Disease eGFR, uACR & Electrolyte Management [CPT 99214] • CKD staging via eGFR + Cystatin C and urine albumin-to-creatinine ratio (uACR) & subspecialty diagnostics (1,469 CMS services/yr).

✓ Accepts Aetna ~$211 Cash
Nephrology ★ 4.7

Dr. George Naratadam, DO

Melrose Park, IL 60160

★★★★★ 4.8 (26)
80th IL Pct

Top Billed Procedure: Chronic Kidney Disease eGFR, uACR & Electrolyte Management [CPT 99214] • CKD staging via eGFR + Cystatin C and urine albumin-to-creatinine ratio (uACR) & subspecialty diagnostics (3,226 CMS services/yr).

✓ Accepts Aetna ~$218 Cash
Nephrology ★ 4.6

Dr. Jason Kurland, MD

Worcester, MA 01655

★★★★★ 4.8 (26)
45th MA Pct

Top Billed Procedure: Chronic Kidney Disease eGFR, uACR & Electrolyte Management [CPT 99214] • CKD staging via eGFR + Cystatin C and urine albumin-to-creatinine ratio (uACR) & subspecialty diagnostics (1,345 CMS services/yr).

✓ Accepts Aetna ~$224 Cash
Nephrology ★ 4.5
★★★★★ 4.8 (26)
19th FL Pct

Top Billed Procedure: Chronic Kidney Disease eGFR, uACR & Electrolyte Management [CPT 99214] • CKD staging via eGFR + Cystatin C and urine albumin-to-creatinine ratio (uACR) & subspecialty diagnostics (1,248 CMS services/yr).

✓ Accepts Aetna ~$216 Cash
Nephrology ★ 4.5

Dr. Paul Jayachandra, MD

St Augustine, FL 32084

★★★★★ 4.8 (26)
25th FL Pct

Top Billed Procedure: Chronic Kidney Disease eGFR, uACR & Electrolyte Management [CPT 99214] • CKD staging via eGFR + Cystatin C and urine albumin-to-creatinine ratio (uACR) & subspecialty diagnostics (1,402 CMS services/yr).

✓ Accepts Aetna ~$216 Cash
Nephrology ★ 4.5

Dr. Daniel Hwang, MD

San Bernardino, CA 92404

★★★★★ 4.8 (26)
33rd CA Pct

Top Billed Procedure: Chronic Kidney Disease eGFR, uACR & Electrolyte Management [CPT 99214] • CKD staging via eGFR + Cystatin C and urine albumin-to-creatinine ratio (uACR) & subspecialty diagnostics (1,605 CMS services/yr).

✓ Accepts Aetna ~$239 Cash
Nephrology ★ 4.5

Dr. Joseph Hebreo, MD

Escondido, CA 92025

★★★★★ 4.8 (26)
29th CA Pct

Top Billed Procedure: Chronic Kidney Disease eGFR, uACR & Electrolyte Management [CPT 99214] • CKD staging via eGFR + Cystatin C and urine albumin-to-creatinine ratio (uACR) & subspecialty diagnostics (1,464 CMS services/yr).

✓ Accepts Aetna ~$239 Cash
Nephrology ★ 4.6

Dr. John Saldarini, MD

Morristown, NJ 07960

★★★★★ 4.7 (25)
59th NJ Pct

Top Billed Procedure: Chronic Kidney Disease eGFR, uACR & Electrolyte Management [CPT 99214] • CKD staging via eGFR + Cystatin C and urine albumin-to-creatinine ratio (uACR) & subspecialty diagnostics (2,453 CMS services/yr).

✓ Accepts Aetna ~$209 Cash
Nephrology ★ 4.8

Dr. Minesh Rajpal, MD

Peoria, AZ 85381

★★★★★ 4.7 (25)
92nd AZ Pct

Top Billed Procedure: Chronic Kidney Disease eGFR, uACR & Electrolyte Management [CPT 99214] • CKD staging via eGFR + Cystatin C and urine albumin-to-creatinine ratio (uACR) & subspecialty diagnostics (7,632 CMS services/yr).

✓ Accepts Aetna ~$207 Cash
Nephrology ★ 4.7

Dr. Adam Woodruff, MD

Jonesboro, AR 72401

★★★★★ 4.7 (25)
96th AR Pct

Top Billed Procedure: Chronic Kidney Disease eGFR, uACR & Electrolyte Management [CPT 99214] • CKD staging via eGFR + Cystatin C and urine albumin-to-creatinine ratio (uACR) & subspecialty diagnostics (7,386 CMS services/yr).

✓ Accepts Aetna ~$209 Cash
Nephrology ★ 4.6

Dr. Abdul Usmani, MD

Columbia, SC 29204

★★★★★ 4.7 (25)
53rd SC Pct

Top Billed Procedure: Chronic Kidney Disease eGFR, uACR & Electrolyte Management [CPT 99214] • CKD staging via eGFR + Cystatin C and urine albumin-to-creatinine ratio (uACR) & subspecialty diagnostics (2,503 CMS services/yr).

✓ Accepts Aetna ~$209 Cash
Nephrology ★ 4.7

Dr. Sean Verma, MD

Tampa, FL 33606

★★★★★ 4.7 (25)
60th FL Pct

Top Billed Procedure: Chronic Kidney Disease eGFR, uACR & Electrolyte Management [CPT 99214] • CKD staging via eGFR + Cystatin C and urine albumin-to-creatinine ratio (uACR) & subspecialty diagnostics (2,476 CMS services/yr).

✓ Accepts Aetna ~$210 Cash
Nephrology ★ 4.6

Dr. Mohammed Ashraf, MD

Lynchburg, VA 24501

★★★★★ 4.7 (25)
48th VA Pct

Top Billed Procedure: Chronic Kidney Disease eGFR, uACR & Electrolyte Management [CPT 99214] • CKD staging via eGFR + Cystatin C and urine albumin-to-creatinine ratio (uACR) & subspecialty diagnostics (1,825 CMS services/yr).

✓ Accepts Aetna ~$209 Cash
Nephrology ★ 4.7

Dr. Patrick Francois, MD

Lakeland, FL 33813

★★★★★ 4.7 (25)
85th FL Pct

Top Billed Procedure: Chronic Kidney Disease eGFR, uACR & Electrolyte Management [CPT 99214] • CKD staging via eGFR + Cystatin C and urine albumin-to-creatinine ratio (uACR) & subspecialty diagnostics (4,056 CMS services/yr).

✓ Accepts Aetna ~$216 Cash
Nephrology ★ 4.7

Dr. Ali Hassan, MD

Springfield, MO 65807

★★★★★ 4.7 (25)
70th MO Pct

Top Billed Procedure: Chronic Kidney Disease eGFR, uACR & Electrolyte Management [CPT 99214] • CKD staging via eGFR + Cystatin C and urine albumin-to-creatinine ratio (uACR) & subspecialty diagnostics (1,903 CMS services/yr).

✓ Accepts Aetna ~$209 Cash
Nephrology ★ 4.4

Dr. Joseph Morris, DO

Gloucester, VA 23061

★★★★★ 4.7 (25)
17th VA Pct

Top Billed Procedure: Chronic Kidney Disease eGFR, uACR & Electrolyte Management [CPT 99214] • CKD staging via eGFR + Cystatin C and urine albumin-to-creatinine ratio (uACR) & subspecialty diagnostics (1,002 CMS services/yr).

✓ Accepts Aetna ~$209 Cash
Nephrology ★ 4.6

Dr. Adil Ali, MD

Houston, TX 77024

★★★★★ 4.7 (25)
52nd TX Pct

Top Billed Procedure: Chronic Kidney Disease eGFR, uACR & Electrolyte Management [CPT 99214] • CKD staging via eGFR + Cystatin C and urine albumin-to-creatinine ratio (uACR) & subspecialty diagnostics (1,899 CMS services/yr).

✓ Accepts Aetna ~$212 Cash
Nephrology ★ 4.8

Dr. Nathan Saucier, MD

New Bern, NC 28562

★★★★★ 4.7 (25)
99th NC Pct

Top Billed Procedure: Chronic Kidney Disease eGFR, uACR & Electrolyte Management [CPT 99214] • CKD staging via eGFR + Cystatin C and urine albumin-to-creatinine ratio (uACR) & subspecialty diagnostics (15,887 CMS services/yr).

✓ Accepts Aetna ~$209 Cash
Nephrology ★ 4.4

Dr. Roshny George, MD

Round Rock, TX 78665

★★★★★ 4.7 (25)
14th TX Pct

Top Billed Procedure: Chronic Kidney Disease eGFR, uACR & Electrolyte Management [CPT 99214] • CKD staging via eGFR + Cystatin C and urine albumin-to-creatinine ratio (uACR) & subspecialty diagnostics (954 CMS services/yr).

✓ Accepts Aetna ~$209 Cash
Nephrology ★ 4.4

Dr. Stanislav Ozhog, DO

Knoxville, TN 37916

★★★★★ 4.7 (25)
21st TN Pct

Top Billed Procedure: Chronic Kidney Disease eGFR, uACR & Electrolyte Management [CPT 99214] • CKD staging via eGFR + Cystatin C and urine albumin-to-creatinine ratio (uACR) & subspecialty diagnostics (1,115 CMS services/yr).

✓ Accepts Aetna ~$201 Cash
Nephrology ★ 4.7

Dr. Vera Stricevic, MD

Naples, FL 34108

★★★★★ 4.7 (26)
69th FL Pct

Top Billed Procedure: Chronic Kidney Disease eGFR, uACR & Electrolyte Management [CPT 99214] • CKD staging via eGFR + Cystatin C and urine albumin-to-creatinine ratio (uACR) & subspecialty diagnostics (2,871 CMS services/yr).

✓ Accepts Aetna ~$216 Cash
Nephrology ★ 4.6

Dr. Amir Gerges, DO

Prescott, AZ 86301

★★★★★ 4.7 (26)
61st AZ Pct

Top Billed Procedure: Chronic Kidney Disease eGFR, uACR & Electrolyte Management [CPT 99214] • CKD staging via eGFR + Cystatin C and urine albumin-to-creatinine ratio (uACR) & subspecialty diagnostics (2,767 CMS services/yr).

✓ Accepts Aetna ~$207 Cash
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.

Patient Triage & Insurance Verification Guide

Frequently Asked Questions: Choosing a Specialist by CPT Volume & Insurance Network

Why does CMS Medicare Part B procedure volume matter when choosing a specialist?

General directory listings show what a doctor claims to treat, whereas federal CMS Medicare Part B claims reveal what they actually perform every week. For example, seeing an endocrinologist who performs 400+ in-office thyroid neck ultrasounds (CPT 76536) per year or a gastroenterologist in the top decile for adenoma detection colonoscopy (CPT 45385) prevents unnecessary outside imaging referrals and repeat appointments.

How does dotMD prevent health-system lab rollups and low-rated clinics from skewing Page 1?

Large hospital networks often bill tens of thousands of automated lab draws or vaccination claims under a single department chair NPI. Our directory triage engine isolates individual practicing clinicians (300 to 4,500 Medicare beneficiaries/year) and requires a minimum 4.2-star verified Google patient consensus with at least 15 reviews for default showcase rankings.

How does the GreatDoc™ Star Rating separate bedside manner from front-desk billing complaints?

The GreatDoc™ rating—calculated by the Proprietary DotMD™ J3 Model—audits patient reviews across clinical diagnostic accuracy, unhurried listening, and procedure skill while flagging administrative friction points (such as $250 annual clinic fees, parking validation costs, or phone hold times) so you know exactly what to expect before walking into the waiting room.

How do I verify if a doctor takes my specific PPO, HMO, or Medicare plan?

Every flagship physician profile on dotMD includes an interactive Insurance Network & Cash-Rate Checker covering Original Medicare Part B, Medicare Advantage, BlueCross BlueShield, Aetna, Cigna, UnitedHealthcare, and regional PPO/HMO plans—plus the exact CMS geo-adjusted CPT 99204 self-pay cash rate ($195–$260) and 3-question script to verify network participation with the billing desk.