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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 59 of 66
Nephrology ★ 4.6

Dr. Mohammad Ismail, MD

Paramount, CA 90723

★★★★★ 4.6 (17)
71st 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 (3,161 CMS services/yr).

✓ Accepts Medicare & Major PPOs (BCBS, UHC, Aetna) ~$239 Cash
Nephrology ★ 4.4

Dr. Yasir Qazi, MD

Orange, CA 92868

★★★★★ 4.6 (25)
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 (1,455 CMS services/yr).

✓ Accepts Medicare & Major PPOs (BCBS, UHC, Aetna) ~$239 Cash
Nephrology ★ 4.3

Dr. Lusine Nahapetyan, MD

New Brunswick, NJ 08901

★★★★★ 4.6 (17)
3rd 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 (726 CMS services/yr).

✓ Accepts Medicare & Major PPOs (BCBS, UHC, Aetna) ~$209 Cash
Nephrology ★ 4.5

Dr. Paul Blake, DO

Charlotte, NC 28205

★★★★★ 4.6 (25)
67th 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 (2,578 CMS services/yr).

✓ Accepts Medicare & Major PPOs (BCBS, UHC, Aetna) ~$209 Cash
Nephrology ★ 4.3

Dr. Priya Gupta, DO

Norfolk, MA 02056

★★★★★ 4.6 (21)
20th 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 (917 CMS services/yr).

✓ Accepts Medicare & Major PPOs (BCBS, UHC, Aetna) ~$224 Cash
Nephrology ★ 4.5

Dr. Hannah Tiu, MD

Henderson, NV 89011

★★★★★ 4.6 (21)
27th NV 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 (1,487 CMS services/yr).

✓ Accepts Medicare & Major PPOs (BCBS, UHC, Aetna) ~$209 Cash
Nephrology ★ 4.7

Dr. Piotr Lazowski, MD

Plymouth, MA 02360

★★★★★ 4.6 (20)
93rd 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 (6,420 CMS services/yr).

✓ Accepts Medicare & Major PPOs (BCBS, UHC, Aetna) ~$224 Cash
Nephrology ★ 4.7

Dr. Hans Yehnert, MD

Chattanooga, TN 37404

★★★★★ 4.6 (20)
96th 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 (14,058 CMS services/yr).

✓ Accepts Medicare & Major PPOs (BCBS, UHC, Aetna) ~$201 Cash
Nephrology ★ 4.6

Dr. Ronnie Wiles, MD

Pensacola, FL 32504

★★★★★ 4.6 (20)
86th 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 (4,106 CMS services/yr).

✓ Accepts Medicare & Major PPOs (BCBS, UHC, Aetna) ~$216 Cash
Nephrology ★ 4.5

Dr. Navid Saigal, MD

Live Oak, TX 78233

★★★★★ 4.6 (16)
47th 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 (1,757 CMS services/yr).

✓ Accepts Medicare & Major PPOs (BCBS, UHC, Aetna) ~$209 Cash
Nephrology ★ 4.6

Dr. Ayman Morgan, MD

Schenectady, NY 12309

★★★★★ 4.6 (16)
84th 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 (4,952 CMS services/yr).

✓ Accepts Medicare & Major PPOs (BCBS, UHC, Aetna) ~$232 Cash
Nephrology ★ 4.6

Dr. Ahad Lodhi, MD

Lake Charles, LA 70601

★★★★★ 4.6 (16)
88th LA 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 (3,741 CMS services/yr).

✓ Accepts Medicare & Major PPOs (BCBS, UHC, Aetna) ~$209 Cash
Nephrology ★ 4.7

Dr. Deep Patel, MD

Mechanicsville, VA 23116

★★★★★ 4.6 (20)
93rd 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 (7,436 CMS services/yr).

✓ Accepts Medicare & Major PPOs (BCBS, UHC, Aetna) ~$209 Cash
Nephrology ★ 4.5

Dr. Nevin Murthy, MD

Gurnee, IL 60031

★★★★★ 4.6 (24)
52nd 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 (2,162 CMS services/yr).

✓ Accepts Medicare & Major PPOs (BCBS, UHC, Aetna) ~$218 Cash
Nephrology ★ 4.7

Dr. Sergio Obligado, MD

Goshen, NY 10924

★★★★★ 4.6 (16)
78th 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 (4,024 CMS services/yr).

✓ Accepts Medicare & Major PPOs (BCBS, UHC, Aetna) ~$232 Cash
Nephrology ★ 4.7

Dr. Jeffrey Rubel, MD

Beverly, MA 01915

★★★★★ 4.6 (24)
99th 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 (26,593 CMS services/yr).

✓ Accepts Medicare & Major PPOs (BCBS, UHC, Aetna) ~$224 Cash
Nephrology ★ 4.6

Dr. Naila Ahmed, MD

Joliet, IL 60435

★★★★★ 4.6 (24)
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 (3,230 CMS services/yr).

✓ Accepts Medicare & Major PPOs (BCBS, UHC, Aetna) ~$218 Cash
Nephrology ★ 4.5

Dr. Ahmet Sevimli, MD

Orange City, FL 32763

★★★★★ 4.6 (20)
66th 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 (2,713 CMS services/yr).

✓ Accepts Medicare & Major PPOs (BCBS, UHC, Aetna) ~$216 Cash
Nephrology ★ 4.6

Dr. Ernest Dejesus, MD

Winfield, IL 60190

★★★★★ 4.6 (16)
87th 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 (3,875 CMS services/yr).

✓ Accepts Medicare & Major PPOs (BCBS, UHC, Aetna) ~$218 Cash
Nephrology ★ 4.6

Dr. Ahmadshah Mirkhel, MD

Fairfax, VA 22033

★★★★★ 4.6 (16)
67th 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 (2,445 CMS services/yr).

✓ Accepts Medicare & Major PPOs (BCBS, UHC, Aetna) ~$209 Cash
Nephrology ★ 4.6

Dr. Tamim Ghith, MD

Fort Myers, FL 33908

★★★★★ 4.6 (24)
63rd 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 (2,590 CMS services/yr).

✓ Accepts Medicare & Major PPOs (BCBS, UHC, Aetna) ~$216 Cash
Nephrology ★ 4.6

Dr. John Whalen, MD

Dubuque, IA 52001

★★★★★ 4.6 (20)
93rd IA 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 (22,631 CMS services/yr).

✓ Accepts Medicare & Major PPOs (BCBS, UHC, Aetna) ~$209 Cash
Nephrology ★ 4.5

Dr. Chirag Patel, MD

Park Ridge, IL 60068

★★★★★ 4.6 (16)
62nd 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 (2,521 CMS services/yr).

✓ Accepts Medicare & Major PPOs (BCBS, UHC, Aetna) ~$218 Cash
Nephrology ★ 4.7

Dr. Amna Rizvi, MD

San Dimas, CA 91773

★★★★★ 4.6 (16)
78th 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 (3,905 CMS services/yr).

✓ Accepts Medicare & Major PPOs (BCBS, UHC, Aetna) ~$239 Cash
Nephrology ★ 4.5

Dr. Rohan Kataria, MD

Charleston, SC 29425

★★★★★ 4.6 (20)
27th 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 (1,713 CMS services/yr).

✓ Accepts Medicare & Major PPOs (BCBS, UHC, Aetna) ~$209 Cash
Nephrology ★ 4.7

Dr. Carlos Leon, MD

St George, UT 84790

★★★★★ 4.6 (24)
78th UT 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 (2,004 CMS services/yr).

✓ Accepts Medicare & Major PPOs (BCBS, UHC, Aetna) ~$209 Cash
Nephrology ★ 4.6

Dr. Ziad Khoury, MD

Chevy Chase, MD 20815

★★★★★ 4.6 (16)
65th 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 (2,040 CMS services/yr).

✓ Accepts Medicare & Major PPOs (BCBS, UHC, Aetna) ~$209 Cash
Nephrology ★ 4.5
★★★★★ 4.6 (24)
42nd ND 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 (1,784 CMS services/yr).

✓ Accepts Medicare & Major PPOs (BCBS, UHC, Aetna) ~$209 Cash
Nephrology ★ 4.6

Dr. Bassem Ibrahim, MD

Mount Dora, FL 32757

★★★★★ 4.6 (24)
81st 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 (3,586 CMS services/yr).

✓ Accepts Medicare & Major PPOs (BCBS, UHC, Aetna) ~$216 Cash
Nephrology ★ 4.4

Dr. Layth Al Attar, MD

Wichita, KS 67214

★★★★★ 4.6 (24)
35th KS 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 (1,795 CMS services/yr).

✓ Accepts Medicare & Major PPOs (BCBS, UHC, Aetna) ~$209 Cash
Nephrology ★ 4.5

Dr. Terrence Oder, MD

Hartford, CT 06120

★★★★★ 4.6 (16)
57th CT 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 (1,558 CMS services/yr).

✓ Accepts Medicare & Major PPOs (BCBS, UHC, Aetna) ~$209 Cash
Nephrology ★ 4.7

Dr. Nathan Woolwine, MD

Concord, NC 28025

★★★★★ 4.6 (24)
94th 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 (8,090 CMS services/yr).

✓ Accepts Medicare & Major PPOs (BCBS, UHC, Aetna) ~$209 Cash
Nephrology ★ 4.5

Dr. Andrew Yue, MD

Los Angeles, CA 90027

★★★★★ 4.6 (24)
40th 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 (1,797 CMS services/yr).

✓ Accepts Medicare & Major PPOs (BCBS, UHC, Aetna) ~$231 Cash
Nephrology ★ 4.7

Dr. John Patrick Sia, MD

Manchester, NH 03104

★★★★★ 4.6 (20)
91st NH 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 (2,144 CMS services/yr).

✓ Accepts Medicare & Major PPOs (BCBS, UHC, Aetna) ~$209 Cash
Nephrology ★ 4.7

Dr. Ruben Villa, MD

Lubbock, TX 79407

★★★★★ 4.6 (20)
93rd 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 (5,669 CMS services/yr).

✓ Accepts Medicare & Major PPOs (BCBS, UHC, Aetna) ~$209 Cash
Nephrology ★ 4.6

Dr. Sitharam Nandigam, MD

Conyers, GA 30012

★★★★★ 4.6 (24)
43rd GA 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 (1,722 CMS services/yr).

✓ Accepts Medicare & Major PPOs (BCBS, UHC, Aetna) ~$209 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.