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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 29 of 66
Nephrology ★ 4.7
★★★★★ 4.8 (15)
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 (2,521 CMS services/yr).

✓ Accepts BlueCross BlueShield ~$211 Cash
Nephrology ★ 4.5

Dr. Tomas Guerrero Nunez, MD

Charlotte, NC 28205

★★★★★ 4.8 (19)
50th 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 (1,603 CMS services/yr).

✓ Accepts BlueCross BlueShield ~$209 Cash
Nephrology ★ 4.4

Dr. Johan Winoto, MD

Elk Grove, CA 95758

★★★★★ 4.8 (23)
17th 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 (1,108 CMS services/yr).

✓ Accepts BlueCross BlueShield ~$239 Cash
Nephrology ★ 4.8

Dr. Reuben Ellis, MD

Macon, GA 31201

★★★★★ 4.8 (23)
93rd 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 (9,389 CMS services/yr).

✓ Accepts BlueCross BlueShield ~$209 Cash
Nephrology ★ 4.8

Dr. Nyan Phyo, MD

Mcallen, TX 78503

★★★★★ 4.8 (15)
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 (2,630 CMS services/yr).

✓ Accepts BlueCross BlueShield ~$209 Cash
Nephrology ★ 4.6

Dr. Brian Young, MD

Sacramento, CA 95817

★★★★★ 4.8 (23)
20th 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 (1,198 CMS services/yr).

✓ Accepts BlueCross BlueShield ~$239 Cash
Nephrology ★ 4.7

Dr. Sarabjit Bhalla, MD

Phoenix, AZ 85004

★★★★★ 4.8 (15)
53rd 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 (2,379 CMS services/yr).

✓ Accepts BlueCross BlueShield ~$207 Cash
Nephrology ★ 4.8

Dr. Jennifer Patel, DO

Darby, PA 19023

★★★★★ 4.8 (23)
85th 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 (2,223 CMS services/yr).

✓ Accepts BlueCross BlueShield ~$209 Cash
Nephrology ★ 4.5

Dr. Guy Lund, MD

San Diego, CA 92123

★★★★★ 4.8 (23)
35th 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 (1,638 CMS services/yr).

✓ Accepts BlueCross BlueShield ~$239 Cash
Nephrology ★ 4.5

Dr. Paul Sacks, MD

Phoenix, AZ 85020

★★★★★ 4.8 (15)
20th 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 (1,250 CMS services/yr).

✓ Accepts BlueCross BlueShield ~$207 Cash
Nephrology ★ 4.7
★★★★★ 4.8 (23)
96th 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 (1,449 CMS services/yr).

✓ Accepts BlueCross BlueShield ~$209 Cash
Nephrology ★ 4.6

Dr. Ashish Kalthia, MD

Garden Grove, CA 92843

★★★★★ 4.8 (23)
44th 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 (1,911 CMS services/yr).

✓ Accepts BlueCross BlueShield ~$239 Cash
Nephrology ★ 4.5

Dr. John Manllo Dieck, MD

Mcallen, TX 78503

★★★★★ 4.8 (15)
21st 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 (1,056 CMS services/yr).

✓ Accepts BlueCross BlueShield ~$209 Cash
Nephrology ★ 4.6

Dr. Dron Bhandari, MD

Greensboro, NC 27405

★★★★★ 4.8 (15)
18th 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 (1,018 CMS services/yr).

✓ Accepts BlueCross BlueShield ~$209 Cash
Nephrology ★ 4.5

Dr. Julie Yabu, MD

Los Angeles, CA 90095

★★★★★ 4.8 (15)
26th 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 (1,366 CMS services/yr).

✓ Accepts BlueCross BlueShield ~$231 Cash
Nephrology ★ 4.6

Dr. Indi Vasudeva, MD

Tampa, FL 33624

★★★★★ 4.8 (15)
36th 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 (1,747 CMS services/yr).

✓ Accepts BlueCross BlueShield ~$210 Cash
Nephrology ★ 4.8

Dr. Mark Lagatta, MD

Winter Park, FL 32792

★★★★★ 4.8 (22)
99th 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 (15,574 CMS services/yr).

✓ Accepts BlueCross BlueShield ~$216 Cash
Nephrology ★ 4.8

Dr. John Panos, MD

Boca Raton, FL 33496

★★★★★ 4.8 (18)
97th 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 (9,929 CMS services/yr).

✓ Accepts BlueCross BlueShield ~$216 Cash
Nephrology ★ 4.8

Dr. Deepak Mittal, MD

Florence, KY 41042

★★★★★ 4.8 (18)
99th 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 (12,425 CMS services/yr).

✓ Accepts BlueCross BlueShield ~$209 Cash
Nephrology ★ 4.7

Dr. Eric Wechsler, MD

Newport Beach, CA 92663

★★★★★ 4.8 (22)
68th 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 (2,915 CMS services/yr).

✓ Accepts BlueCross BlueShield ~$239 Cash
Nephrology ★ 4.8

Dr. Akshey Gupta, MD

Lafayette, LA 70506

★★★★★ 4.8 (22)
92nd 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 (4,791 CMS services/yr).

✓ Accepts BlueCross BlueShield ~$209 Cash
Nephrology ★ 4.6

Dr. Mustafa Muhammad, MD

Elizabethtown, KY 42701

★★★★★ 4.8 (18)
58th 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 (2,490 CMS services/yr).

✓ Accepts BlueCross BlueShield ~$209 Cash
Nephrology ★ 4.7

Dr. Barry Eppinger, DO

Morristown, NJ 07960

★★★★★ 4.8 (18)
64th 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 (2,716 CMS services/yr).

✓ Accepts BlueCross BlueShield ~$209 Cash
Nephrology ★ 4.7
★★★★★ 4.8 (22)
86th 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 (3,969 CMS services/yr).

✓ Accepts BlueCross BlueShield ~$209 Cash
Nephrology ★ 4.7

Dr. Bhavani Adusumilli, MD

Springfield, IL 62702

★★★★★ 4.8 (22)
70th 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 (2,791 CMS services/yr).

✓ Accepts BlueCross BlueShield ~$218 Cash
Nephrology ★ 4.8

Dr. Douglas Hamerski, MD

Wilmington, NC 28401

★★★★★ 4.8 (22)
84th 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 (4,858 CMS services/yr).

✓ Accepts BlueCross BlueShield ~$209 Cash
Nephrology ★ 4.8

Dr. Craig Hurwitz, MD

Plattsburgh, NY 12901

★★★★★ 4.8 (18)
94th 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 (9,467 CMS services/yr).

✓ Accepts BlueCross BlueShield ~$232 Cash
Nephrology ★ 4.7

Dr. Kajal Patel, MD

San Jose, CA 95116

★★★★★ 4.8 (18)
65th 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 (2,696 CMS services/yr).

✓ Accepts BlueCross BlueShield ~$239 Cash
Nephrology ★ 4.7

Dr. Benjamin Weathersby, MD

North Charleston, SC 29405

★★★★★ 4.8 (22)
74th 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 (3,651 CMS services/yr).

✓ Accepts BlueCross BlueShield ~$209 Cash
Nephrology ★ 4.6
★★★★★ 4.8 (22)
67th 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 (2,812 CMS services/yr).

✓ Accepts BlueCross BlueShield ~$239 Cash
Nephrology ★ 4.8

Dr. Gary Sirken, DO

Langhorne, PA 19047

★★★★★ 4.8 (18)
94th 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 (3,006 CMS services/yr).

✓ Accepts BlueCross BlueShield ~$209 Cash
Nephrology ★ 4.6

Dr. Jeremy Sorkin, MD

Columbia, SC 29203

★★★★★ 4.8 (22)
61st 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 (2,949 CMS services/yr).

✓ Accepts BlueCross BlueShield ~$209 Cash
Nephrology ★ 4.8

Dr. David Faitell, MD

Lake Success, NY 11042

★★★★★ 4.8 (22)
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 (5,476 CMS services/yr).

✓ Accepts BlueCross BlueShield ~$232 Cash
Nephrology ★ 4.8

Dr. Salah Sonbol, MD

Thousand Oaks, CA 91360

★★★★★ 4.8 (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 (3,804 CMS services/yr).

✓ Accepts BlueCross BlueShield ~$239 Cash
Nephrology ★ 4.5

Dr. Bao Huynh, MD

Clermont, FL 34711

★★★★★ 4.8 (18)
20th 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 (1,277 CMS services/yr).

✓ Accepts BlueCross BlueShield ~$216 Cash
Nephrology ★ 4.8

Dr. Dwight Matthew, MD

Florence, AL 35630

★★★★★ 4.8 (18)
98th 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 (14,653 CMS services/yr).

✓ Accepts BlueCross BlueShield ~$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.