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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 20 of 66
Nephrology ★ 4.5

Dr. Asghar Chaudhry, MD

Coral Springs, FL 33071

★★★★★ 4.9 (19)
26th 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 (1,432 CMS services/yr).

✓ Accepts Kaiser Permanente ~$216 Cash
Nephrology ★ 4.6

Dr. Ramon Noriega, DO

Oklahoma City, OK 73134

★★★★★ 4.9 (23)
27th 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 (375 CMS services/yr).

✓ Accepts Kaiser Permanente ~$209 Cash
Nephrology ★ 4.6
★★★★★ 4.9 (23)
29th 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 (1,475 CMS services/yr).

✓ Accepts Kaiser Permanente ~$209 Cash
Nephrology ★ 4.7

Dr. Grace Snyder, MD

Laredo, TX 78041

★★★★★ 4.9 (23)
38th 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 (1,521 CMS services/yr).

✓ Accepts Kaiser Permanente ~$209 Cash
Nephrology ★ 4.6

Dr. Gerald Needham, DO

Clearwater, FL 33756

★★★★★ 4.9 (23)
41st 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 (1,902 CMS services/yr).

✓ Accepts Kaiser Permanente ~$216 Cash
Nephrology ★ 4.7

Dr. Jeremy Wittenborn, MD

Indianapolis, IN 46227

★★★★★ 4.9 (23)
61st 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 (1,949 CMS services/yr).

✓ Accepts Kaiser Permanente ~$209 Cash
Nephrology ★ 4.5

Dr. Angela Bolz, DO

Tulsa, OK 74106

★★★★★ 4.9 (19)
26th 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 (1,456 CMS services/yr).

✓ Accepts Kaiser Permanente ~$209 Cash
Nephrology ★ 4.7
★★★★★ 4.9 (15)
50th 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 (2,137 CMS services/yr).

✓ Accepts Kaiser Permanente ~$227 Cash
Nephrology ★ 4.8

Dr. Ciaran Browne, MD

Prince Frederick, MD 20678

★★★★★ 4.9 (19)
95th 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 (3,961 CMS services/yr).

✓ Accepts Kaiser Permanente ~$209 Cash
Nephrology ★ 4.6

Dr. Tapasi Saha, MD

Kingsport, TN 37660

★★★★★ 4.9 (23)
28th 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 (1,340 CMS services/yr).

✓ Accepts Kaiser Permanente ~$201 Cash
Nephrology ★ 4.7

Dr. Bryan Stone, MD

Palm Springs, CA 92262

★★★★★ 4.9 (23)
47th 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 (2,030 CMS services/yr).

✓ Accepts Kaiser Permanente ~$239 Cash
Nephrology ★ 4.6

Dr. Sanjay Neupane, MD

Tualatin, OR 97062

★★★★★ 4.9 (19)
39th OR 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 (1,454 CMS services/yr).

✓ Accepts Kaiser Permanente ~$209 Cash
Nephrology ★ 4.8

Dr. Christopher Lebrun, MD

Columbus, MS 39705

★★★★★ 4.9 (19)
99th MS 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 (6,091 CMS services/yr).

✓ Accepts Kaiser Permanente ~$209 Cash
Nephrology ★ 4.6

Dr. Leon Rovner, MD

Los Angeles, CA 90015

★★★★★ 4.9 (23)
41st 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 (1,811 CMS services/yr).

✓ Accepts Kaiser Permanente ~$231 Cash
Nephrology ★ 4.6

Dr. Rajat Kapoor, DO

Brick, NJ 08724

★★★★★ 4.9 (18)
62nd 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 (2,571 CMS services/yr).

✓ Accepts Kaiser Permanente ~$209 Cash
Nephrology ★ 4.8

Dr. Charles Arbogast, DO

Fort Walton Beach, FL 32547

★★★★★ 4.9 (22)
93rd 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 (5,686 CMS services/yr).

✓ Accepts Kaiser Permanente ~$216 Cash
Nephrology ★ 4.8

Dr. Samuel Johnson, MD

Marietta, GA 30060

★★★★★ 4.9 (18)
82nd 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 (4,183 CMS services/yr).

✓ Accepts Kaiser Permanente ~$209 Cash
Nephrology ★ 4.8

Dr. Erik Sitker, MD

Burbank, CA 91502

★★★★★ 4.9 (22)
88th 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 (6,050 CMS services/yr).

✓ Accepts Kaiser Permanente ~$239 Cash
Nephrology ★ 4.7
★★★★★ 4.9 (22)
71st 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 (3,056 CMS services/yr).

✓ Accepts Kaiser Permanente ~$209 Cash
Nephrology ★ 4.8

Dr. Mitchell Kirsch, MD

Stony Brook, NY 11790

★★★★★ 4.9 (22)
83rd 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 (4,877 CMS services/yr).

✓ Accepts Kaiser Permanente ~$232 Cash
Nephrology ★ 4.8

Dr. Larry Froch, MD

Los Angeles, CA 90048

★★★★★ 4.9 (18)
77th 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 (3,665 CMS services/yr).

✓ Accepts Kaiser Permanente ~$231 Cash
Nephrology ★ 4.8

Dr. Lakshmi Turlapati, MD

Fredericksburg, VA 22401

★★★★★ 4.9 (18)
78th 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 (3,007 CMS services/yr).

✓ Accepts Kaiser Permanente ~$209 Cash
Nephrology ★ 4.7
★★★★★ 4.9 (22)
76th 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 (2,357 CMS services/yr).

✓ Accepts Kaiser Permanente ~$209 Cash
Nephrology ★ 4.8

Dr. Jacob Winograd, MD

Fall River, MA 02720

★★★★★ 4.9 (22)
71st 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 (1,911 CMS services/yr).

✓ Accepts Kaiser Permanente ~$224 Cash
Nephrology ★ 4.8

Dr. Narasimha Boorgu, MD

Florence, AL 35630

★★★★★ 4.9 (18)
99th AL 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 (35,610 CMS services/yr).

✓ Accepts Kaiser Permanente ~$209 Cash
Nephrology ★ 4.8

Dr. Seema Karanjgaokar, MD

Florham Park, NJ 07932

★★★★★ 4.9 (22)
88th 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 (2,146 CMS services/yr).

✓ Accepts Kaiser Permanente ~$209 Cash
Nephrology ★ 4.7

Dr. Wei Zhao, MD

Norfolk, VA 23502

★★★★★ 4.9 (22)
46th 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 (1,786 CMS services/yr).

✓ Accepts Kaiser Permanente ~$209 Cash
Nephrology ★ 4.8

Dr. Ojas Mehta, DO

Monroe, NJ 08831

★★★★★ 4.9 (18)
83rd 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 (3,916 CMS services/yr).

✓ Accepts Kaiser Permanente ~$209 Cash
Nephrology ★ 4.8

Dr. Matthias Simon, MD

Live Oak, TX 78233

★★★★★ 4.9 (22)
89th 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 (4,574 CMS services/yr).

✓ Accepts Kaiser Permanente ~$209 Cash
Nephrology ★ 4.6

Dr. Juan Chique, MD

Jacksonville, FL 32204

★★★★★ 4.9 (18)
38th 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 (1,821 CMS services/yr).

✓ Accepts Kaiser Permanente ~$216 Cash
Nephrology ★ 4.8
★★★★★ 4.9 (18)
71st 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 (1,912 CMS services/yr).

✓ Accepts Kaiser Permanente ~$209 Cash
Nephrology ★ 4.7

Dr. Vrinda Mahajan, MD

St Louis, MO 63117

★★★★★ 4.9 (18)
68th 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 (1,829 CMS services/yr).

✓ Accepts Kaiser Permanente ~$209 Cash
Nephrology ★ 4.7

Dr. Luani Lee, MD

Los Angeles, CA 90015

★★★★★ 4.9 (18)
48th 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 (2,040 CMS services/yr).

✓ Accepts Kaiser Permanente ~$231 Cash
Nephrology ★ 4.7

Dr. Derrick Tesseneer, MD

Flowood, MS 39232

★★★★★ 4.9 (22)
58th MS 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 (1,853 CMS services/yr).

✓ Accepts Kaiser Permanente ~$209 Cash
Nephrology ★ 4.7

Dr. Ying Hui Luu, MD

Santa Monica, CA 90404

★★★★★ 4.9 (18)
58th 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 (2,403 CMS services/yr).

✓ Accepts Kaiser Permanente ~$239 Cash
Nephrology ★ 4.7
★★★★★ 4.9 (22)
66th 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 (2,522 CMS services/yr).

✓ Accepts Kaiser Permanente ~$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.