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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 35 of 66
Nephrology ★ 4.6

Dr. Richard Cross, MD

Saint Clair Shores, MI 48081

★★★★★ 4.8 (17)
54th MI 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 (1,762 CMS services/yr).

✓ Accepts UnitedHealthcare ~$209 Cash
Nephrology ★ 4.7

Dr. Surju Patel, MD

Camp Hill, PA 17011

★★★★★ 4.8 (21)
76th 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 (1,990 CMS services/yr).

✓ Accepts UnitedHealthcare ~$209 Cash
Nephrology ★ 4.6

Dr. Sarita Cross, MD

Asheville, NC 28801

★★★★★ 4.8 (17)
49th 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 (1,578 CMS services/yr).

✓ Accepts UnitedHealthcare ~$209 Cash
Nephrology ★ 4.7

Dr. Adnan Ahmed, MD

Clermont, FL 34715

★★★★★ 4.8 (21)
83rd 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 (3,869 CMS services/yr).

✓ Accepts UnitedHealthcare ~$216 Cash
Nephrology ★ 4.6

Dr. Murtaza Naqvi, DO

Hazlet, NJ 07730

★★★★★ 4.8 (21)
53rd 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 (2,212 CMS services/yr).

✓ Accepts UnitedHealthcare ~$209 Cash
Nephrology ★ 4.4

Dr. Kawan Swain, MD

Raleigh, NC 27609

★★★★★ 4.8 (17)
23rd 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 (1,082 CMS services/yr).

✓ Accepts UnitedHealthcare ~$209 Cash
Nephrology ★ 4.6

Dr. Rebecca Ong, MD

Ocala, FL 34471

★★★★★ 4.8 (21)
49th 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 (2,108 CMS services/yr).

✓ Accepts UnitedHealthcare ~$216 Cash
Nephrology ★ 4.7
★★★★★ 4.8 (17)
66th 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 (2,400 CMS services/yr).

✓ Accepts UnitedHealthcare ~$209 Cash
Nephrology ★ 4.6

Dr. Moses Ejiofor, MD

Little Rock, AR 72205

★★★★★ 4.8 (17)
67th 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 (2,619 CMS services/yr).

✓ Accepts UnitedHealthcare ~$209 Cash
Nephrology ★ 4.5

Dr. Mahmuda Akhter, MD

Lafayette, IN 47905

★★★★★ 4.8 (17)
32nd IN 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 (1,407 CMS services/yr).

✓ Accepts UnitedHealthcare ~$209 Cash
Nephrology ★ 4.4
★★★★★ 4.8 (21)
17th 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 (1,002 CMS services/yr).

✓ Accepts UnitedHealthcare ~$209 Cash
Nephrology ★ 4.6

Dr. Leon Shein, MD

Brooklyn, NY 11213

★★★★★ 4.8 (17)
52nd 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 (1,524 CMS services/yr).

✓ Accepts UnitedHealthcare ~$232 Cash
Nephrology ★ 4.5

Dr. Raad Chowdhury, MD

Boston, MA 02115

★★★★★ 4.8 (21)
16th 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 (869 CMS services/yr).

✓ Accepts UnitedHealthcare ~$227 Cash
Nephrology ★ 4.6
★★★★★ 4.8 (17)
41st 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 (1,739 CMS services/yr).

✓ Accepts UnitedHealthcare ~$209 Cash
Nephrology ★ 4.7

Dr. Larry Warmoth, MD

Lubbock, TX 79410

★★★★★ 4.8 (17)
68th 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 (2,622 CMS services/yr).

✓ Accepts UnitedHealthcare ~$209 Cash
Nephrology ★ 4.6

Dr. Milagros Martinez, MD

Live Oak, TX 78233

★★★★★ 4.8 (21)
56th 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 (2,051 CMS services/yr).

✓ Accepts UnitedHealthcare ~$209 Cash
Nephrology ★ 4.6

Dr. Keith Bartolomei, MD

Providence, RI 02904

★★★★★ 4.8 (17)
43rd RI 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 (1,570 CMS services/yr).

✓ Accepts UnitedHealthcare ~$209 Cash
Nephrology ★ 4.8

Dr. Shaun Aure, MD

Jacksonville, FL 32204

★★★★★ 4.8 (20)
88th 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 (4,377 CMS services/yr).

✓ Accepts UnitedHealthcare ~$216 Cash
Nephrology ★ 4.7

Dr. Jim Hilepo, MD

Lake Success, NY 11042

★★★★★ 4.8 (16)
86th 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 (5,619 CMS services/yr).

✓ Accepts UnitedHealthcare ~$232 Cash
Nephrology ★ 4.7

Dr. Ihab Zaggout, MD

Macon, GA 31201

★★★★★ 4.8 (16)
89th 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 (5,754 CMS services/yr).

✓ Accepts UnitedHealthcare ~$209 Cash
Nephrology ★ 4.8

Dr. Syed Ahmed, MD

Maywood, IL 60153

★★★★★ 4.8 (24)
86th 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 (3,715 CMS services/yr).

✓ Accepts UnitedHealthcare ~$218 Cash
Nephrology ★ 4.7

Dr. Vaibhav Sahni, MD

Flint, MI 48504

★★★★★ 4.8 (24)
83rd MI 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 (2,642 CMS services/yr).

✓ Accepts UnitedHealthcare ~$209 Cash
Nephrology ★ 4.8

Dr. Steve Su, MD

Fresno, CA 93720

★★★★★ 4.8 (24)
97th 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 (21,514 CMS services/yr).

✓ Accepts UnitedHealthcare ~$239 Cash
Nephrology ★ 4.7

Dr. Jeremy Marcus, MD

Washington, DC 20037

★★★★★ 4.8 (24)
79th DC 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 UnitedHealthcare ~$209 Cash
Nephrology ★ 4.7

Dr. Thomas Lim, MD

Las Vegas, NV 89146

★★★★★ 4.8 (20)
80th 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 (2,577 CMS services/yr).

✓ Accepts UnitedHealthcare ~$209 Cash
Nephrology ★ 4.8

Dr. Joseph Chindo, MD

Lake Havasu City, AZ 86403

★★★★★ 4.8 (24)
85th 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 (5,775 CMS services/yr).

✓ Accepts UnitedHealthcare ~$207 Cash
Nephrology ★ 4.6

Dr. Eric Cheung, MD

Santa Rosa, CA 95407

★★★★★ 4.8 (16)
53rd 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 (2,228 CMS services/yr).

✓ Accepts UnitedHealthcare ~$239 Cash
Nephrology ★ 4.7

Dr. Nashib Hashmi, MD

Kankakee, IL 60901

★★★★★ 4.8 (16)
92nd 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 (4,789 CMS services/yr).

✓ Accepts UnitedHealthcare ~$218 Cash
Nephrology ★ 4.8

Dr. Jeffrey Cohen, MD

Manhasset, NY 11030

★★★★★ 4.8 (20)
93rd 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 (8,054 CMS services/yr).

✓ Accepts UnitedHealthcare ~$232 Cash
Nephrology ★ 4.7

Dr. Andrew Patchett, DO

St George, UT 84790

★★★★★ 4.8 (20)
70th 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 (1,603 CMS services/yr).

✓ Accepts UnitedHealthcare ~$209 Cash
Nephrology ★ 4.7

Dr. Mary Bui, MD

Upland, CA 91786

★★★★★ 4.8 (16)
99th 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 (8,860 CMS services/yr).

✓ Accepts UnitedHealthcare ~$239 Cash
Nephrology ★ 4.6

Dr. Janet Russell, MD

Tulsa, OK 74104

★★★★★ 4.8 (24)
47th OK 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 (2,007 CMS services/yr).

✓ Accepts UnitedHealthcare ~$209 Cash
Nephrology ★ 4.7

Dr. Vineeta Sood, MD

Colonial Heights, VA 23834

★★★★★ 4.8 (24)
72nd 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 (2,666 CMS services/yr).

✓ Accepts UnitedHealthcare ~$209 Cash
Nephrology ★ 4.6
★★★★★ 4.8 (16)
60th 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 (2,469 CMS services/yr).

✓ Accepts UnitedHealthcare ~$218 Cash
Nephrology ★ 4.6

Dr. Mary Rose Tantoco, MD

Uncasville, CT 06382

★★★★★ 4.8 (20)
46th 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 (1,393 CMS services/yr).

✓ Accepts UnitedHealthcare ~$209 Cash
Nephrology ★ 4.6

Dr. Sudhir Vyakaranam, MD

Mishawaka, IN 46545

★★★★★ 4.8 (24)
55th IN 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 (1,835 CMS services/yr).

✓ Accepts UnitedHealthcare ~$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.