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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 40 of 66
Nephrology ★ 4.7

Dr. Marcus Britton, MD

Tupelo, MS 38801

★★★★★ 4.7 (20)
91st 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 (3,930 CMS services/yr).

✓ Accepts Kaiser Permanente ~$209 Cash
Nephrology ★ 4.7

Dr. Marc Zelkowitz, MD

Englewood, NJ 07631

★★★★★ 4.7 (16)
73rd 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 (3,118 CMS services/yr).

✓ Accepts Kaiser Permanente ~$209 Cash
Nephrology ★ 4.8

Dr. John Morris, MD

Memphis, TN 38138

★★★★★ 4.7 (16)
87th 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 (8,747 CMS services/yr).

✓ Accepts Kaiser Permanente ~$201 Cash
Nephrology ★ 4.7

Dr. Haresh Kumar, MD

Victoria, TX 77901

★★★★★ 4.7 (24)
78th 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 (3,140 CMS services/yr).

✓ Accepts Kaiser Permanente ~$209 Cash
Nephrology ★ 4.5

Dr. Ashraf Chattha, MD

Columbia, SC 29204

★★★★★ 4.7 (24)
39th 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 (2,074 CMS services/yr).

✓ Accepts Kaiser Permanente ~$209 Cash
Nephrology ★ 4.6

Dr. Lazaro Delgado, MD

Kissimmee, FL 34741

★★★★★ 4.7 (24)
56th 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 (2,331 CMS services/yr).

✓ Accepts Kaiser Permanente ~$216 Cash
Nephrology ★ 4.7

Dr. Michael Misuraca, DO

Livonia, MI 48152

★★★★★ 4.7 (20)
78th 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 (2,458 CMS services/yr).

✓ Accepts Kaiser Permanente ~$209 Cash
Nephrology ★ 4.6

Dr. Paul Maraj, MD

Jacksonville, FL 32207

★★★★★ 4.7 (20)
61st 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 (2,491 CMS services/yr).

✓ Accepts Kaiser Permanente ~$216 Cash
Nephrology ★ 4.6
★★★★★ 4.7 (24)
55th 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 (1,815 CMS services/yr).

✓ Accepts Kaiser Permanente ~$209 Cash
Nephrology ★ 4.7

Dr. Alfred Raciti, MD

Mount Sinai, NY 11766

★★★★★ 4.7 (20)
76th 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 (3,642 CMS services/yr).

✓ Accepts Kaiser Permanente ~$232 Cash
Nephrology ★ 4.7

Dr. Spencer Hatch, DO

Lafayette, LA 70506

★★★★★ 4.7 (16)
57th 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 (2,138 CMS services/yr).

✓ Accepts Kaiser Permanente ~$209 Cash
Nephrology ★ 4.6

Dr. Quan Wang, MD

Greenbelt, MD 20770

★★★★★ 4.7 (16)
63rd 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 (1,989 CMS services/yr).

✓ Accepts Kaiser Permanente ~$209 Cash
Nephrology ★ 4.4

Dr. Rohit Sharma, MD

Walnut Creek, CA 94598

★★★★★ 4.7 (24)
24th 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 (1,326 CMS services/yr).

✓ Accepts Kaiser Permanente ~$239 Cash
Nephrology ★ 4.7

Dr. Manish Garg, MD

Wilmington, DE 19808

★★★★★ 4.7 (20)
76th DE 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 (4,309 CMS services/yr).

✓ Accepts Kaiser Permanente ~$209 Cash
Nephrology ★ 4.7

Dr. Naushad Pervez, MD

Allen Park, MI 48101

★★★★★ 4.7 (16)
75th 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 (2,318 CMS services/yr).

✓ Accepts Kaiser Permanente ~$209 Cash
Nephrology ★ 4.4

Dr. Anjana Easwar, MD

Louisville, KY 40203

★★★★★ 4.7 (20)
31st KY 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 (1,495 CMS services/yr).

✓ Accepts Kaiser Permanente ~$209 Cash
Nephrology ★ 4.6

Dr. John Hammes, MD

San Diego, CA 92103

★★★★★ 4.7 (20)
57th 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 (2,351 CMS services/yr).

✓ Accepts Kaiser Permanente ~$239 Cash
Nephrology ★ 4.5
★★★★★ 4.7 (24)
32nd NE 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 (1,293 CMS services/yr).

✓ Accepts Kaiser Permanente ~$209 Cash
Nephrology ★ 4.7

Dr. Peter Mccauley, MD

Bakersfield, CA 93308

★★★★★ 4.7 (20)
93rd 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 (8,670 CMS services/yr).

✓ Accepts Kaiser Permanente ~$239 Cash
Nephrology ★ 4.6

Dr. Shaukat Rashid, MD

Perrysburg, OH 43551

★★★★★ 4.7 (20)
63rd 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 (1,516 CMS services/yr).

✓ Accepts Kaiser Permanente ~$209 Cash
Nephrology ★ 4.7

Dr. John Dokko, DO

Berkeley Heights, NJ 07922

★★★★★ 4.7 (24)
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 (4,784 CMS services/yr).

✓ Accepts Kaiser Permanente ~$209 Cash
Nephrology ★ 4.5

Dr. Matthew Denker, MD

Philadelphia, PA 19104

★★★★★ 4.7 (24)
31st 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 (1,118 CMS services/yr).

✓ Accepts Kaiser Permanente ~$209 Cash
Nephrology ★ 4.7

Dr. Racquel Holmes, MD

Raleigh, NC 27609

★★★★★ 4.7 (20)
86th 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 (1,101 CMS services/yr).

✓ Accepts Kaiser Permanente ~$209 Cash
Nephrology ★ 4.8

Dr. Joseph Warren, MD

Orlando, FL 32804

★★★★★ 4.7 (24)
92nd 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 (5,411 CMS services/yr).

✓ Accepts Kaiser Permanente ~$216 Cash
Nephrology ★ 4.6

Dr. Rebecca Seshasai, MD

Philadelphia, PA 19104

★★★★★ 4.7 (16)
38th 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 (1,284 CMS services/yr).

✓ Accepts Kaiser Permanente ~$209 Cash
Nephrology ★ 4.6

Dr. Paramjit Kalirao, MD

Lauderdale Lakes, FL 33313

★★★★★ 4.7 (16)
28th 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 (1,488 CMS services/yr).

✓ Accepts Kaiser Permanente ~$216 Cash
Nephrology ★ 4.8

Dr. Elena Frolova, MD

Brooklyn, NY 11235

★★★★★ 4.7 (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 (1,176 CMS services/yr).

✓ Accepts Kaiser Permanente ~$232 Cash
Nephrology ★ 4.6

Dr. Leilani Ka'anehe, MD

Honolulu, HI 96817

★★★★★ 4.7 (20)
56th HI 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 (1,286 CMS services/yr).

✓ Accepts Kaiser Permanente ~$209 Cash
Nephrology ★ 4.5

Dr. Kim Tibaldi, MD

Livingston, NJ 07039

★★★★★ 4.7 (24)
20th 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 (1,155 CMS services/yr).

✓ Accepts Kaiser Permanente ~$209 Cash
Nephrology ★ 4.4

Dr. Ryan Mullane, DO

Omaha, NE 68198

★★★★★ 4.7 (24)
13th NE 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 (861 CMS services/yr).

✓ Accepts Kaiser Permanente ~$209 Cash
Nephrology ★ 4.4

Dr. Ashraf Mohammed, MD

Las Vegas, NV 89118

★★★★★ 4.7 (20)
25th 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 (1,433 CMS services/yr).

✓ Accepts Kaiser Permanente ~$209 Cash
Nephrology ★ 4.4

Dr. Stefan Unterhalter, MD

Beverly Hills, CA 90211

★★★★★ 4.7 (20)
30th 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 (1,495 CMS services/yr).

✓ Accepts Kaiser Permanente ~$239 Cash
Nephrology ★ 4.6

Dr. Moufid Nemeh, MD

Northridge, CA 91325

★★★★★ 4.7 (24)
57th 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 (2,331 CMS services/yr).

✓ Accepts Kaiser Permanente ~$239 Cash
Nephrology ★ 4.8

Dr. Mohammad Alsawah, MD

Royal Oak, MI 48073

★★★★★ 4.7 (24)
98th 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 (2,925 CMS services/yr).

✓ Accepts Kaiser Permanente ~$209 Cash
Nephrology ★ 4.8
★★★★★ 4.7 (19)
96th 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 (10,695 CMS services/yr).

✓ Accepts Kaiser Permanente ~$209 Cash
Nephrology ★ 4.7

Dr. Ritu Khurana, MD

Rome, GA 30165

★★★★★ 4.7 (23)
97th 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 (13,961 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.