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Gastroenterology Doctors Who Perform the Procedure You Need—and Take Your Insurance.

Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385), upper GI endoscopy / EGD for GERD & Barrett’s (CPT 43239), and FibroScan liver elastography (CPT 91200). Filter by your insurance carrier, state, or procedure below.

4. Complete Physician Directory

All Gastroenterology Physicians (3,529)

Page 43 of 99

Dr. Srinivas Puli, MD

Fort Worth, TX 76104

★★★★★ 4.8 (22)
55th TX Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (1,559 CMS services/yr).

✓ Accepts UnitedHealthcare ~$209 Cash

Dr. Antwan Atia, MD

Toledo, OH 43606

★★★★★ 4.8 (22)
65th OH Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (1,939 CMS services/yr).

✓ Accepts UnitedHealthcare ~$209 Cash

Dr. Aviv Katz, DO

Loxahatchee, FL 33470

★★★★★ 4.8 (18)
49th FL Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (1,350 CMS services/yr).

✓ Accepts UnitedHealthcare ~$216 Cash
★★★★★ 4.8 (22)
49th MA Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (998 CMS services/yr).

✓ Accepts UnitedHealthcare ~$224 Cash

Dr. Khalil Abuamr, MD

Topeka, KS 66606

★★★★★ 4.8 (18)
47th KS Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (1,452 CMS services/yr).

✓ Accepts UnitedHealthcare ~$209 Cash

Dr. Subhendu Narayan, MD

Berkeley, CA 94705

★★★★★ 4.8 (22)
62nd CA Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (1,423 CMS services/yr).

✓ Accepts UnitedHealthcare ~$239 Cash

Dr. Michael Veliuona, MD

Harrisburg, PA 17111

★★★★★ 4.8 (18)
82nd PA Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (6,076 CMS services/yr).

✓ Accepts UnitedHealthcare ~$209 Cash

Dr. Jennifer Cahill, MD

Milwaukee, WI 53226

★★★★★ 4.8 (18)
98th WI Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (17,076 CMS services/yr).

✓ Accepts UnitedHealthcare ~$209 Cash

Dr. Mark Tanchel, MD

Hackensack, NJ 07601

★★★★★ 4.8 (18)
78th NJ Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (2,252 CMS services/yr).

✓ Accepts UnitedHealthcare ~$209 Cash

Dr. Vikram Malladi, MD

Greenbrae, CA 94904

★★★★★ 4.8 (18)
41st CA Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (1,082 CMS services/yr).

✓ Accepts UnitedHealthcare ~$239 Cash

Dr. Jeffrey Adler, MD

Lebanon, NH 03756

★★★★★ 4.8 (18)
56th NH Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (1,091 CMS services/yr).

✓ Accepts UnitedHealthcare ~$209 Cash

Dr. Annette Kwon, MD

San Francisco, CA 94115

★★★★★ 4.8 (22)
15th CA Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (777 CMS services/yr).

✓ Accepts UnitedHealthcare ~$250 Cash

Dr. John Alvarez, MD

San Antonio, TX 78212

★★★★★ 4.8 (22)
40th TX Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (1,110 CMS services/yr).

✓ Accepts UnitedHealthcare ~$209 Cash

Dr. Tony Brar, MD

Gainesville, FL 32605

★★★★★ 4.8 (22)
22nd FL Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (920 CMS services/yr).

✓ Accepts UnitedHealthcare ~$216 Cash

Dr. Nistha Rawal, DO

Lake Barrington, IL 60010

★★★★★ 4.8 (22)
20th IL Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (840 CMS services/yr).

✓ Accepts UnitedHealthcare ~$218 Cash

Dr. Mariquit Sendelbach, DO

Farmington Hills, MI 48336

★★★★★ 4.8 (18)
35th MI Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (1,068 CMS services/yr).

✓ Accepts UnitedHealthcare ~$209 Cash

Dr. Raetta Fountain, MD

Greenville, NC 27834

★★★★★ 4.8 (22)
82nd NC Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (9,551 CMS services/yr).

✓ Accepts UnitedHealthcare ~$209 Cash

Dr. Thomas Rockoff, MD

Prospect, CT 06712

★★★★★ 4.8 (18)
52nd CT Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (2,817 CMS services/yr).

✓ Accepts UnitedHealthcare ~$209 Cash

Dr. Steven Kaplan, MD

Aventura, FL 33180

★★★★★ 4.8 (22)
44th FL Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (1,216 CMS services/yr).

✓ Accepts UnitedHealthcare ~$216 Cash

Dr. Steven Larson, MD

Tacoma, WA 98405

★★★★★ 4.8 (18)
18th WA Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (769 CMS services/yr).

✓ Accepts UnitedHealthcare ~$222 Cash

Dr. Scott Brotze, MD

Huntersville, NC 28078

★★★★★ 4.8 (18)
64th NC Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (5,921 CMS services/yr).

✓ Accepts UnitedHealthcare ~$209 Cash

Dr. Nirav Shah, MD

Wyomissing, PA 19610

★★★★★ 4.8 (18)
62nd PA Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (3,970 CMS services/yr).

✓ Accepts UnitedHealthcare ~$209 Cash

Dr. Bruno Mazza, MD

Elmira, NY 14901

★★★★★ 4.8 (18)
41st NY Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (1,034 CMS services/yr).

✓ Accepts UnitedHealthcare ~$232 Cash

Dr. Daniel Sher, MD

Philadelphia, PA 19111

★★★★★ 4.8 (22)
24th PA Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (873 CMS services/yr).

✓ Accepts UnitedHealthcare ~$209 Cash

Dr. Spencer Knox, MD

Fleming Island, FL 32003

★★★★★ 4.8 (18)
32nd FL Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (1,050 CMS services/yr).

✓ Accepts UnitedHealthcare ~$216 Cash

Dr. Ramy Mansour, DO

Clarkston, MI 48346

★★★★★ 4.8 (22)
25th MI Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (907 CMS services/yr).

✓ Accepts UnitedHealthcare ~$209 Cash

Dr. Debra Goldstein, MD

Edison, NJ 08837

★★★★★ 4.8 (18)
30th NJ Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (1,016 CMS services/yr).

✓ Accepts UnitedHealthcare ~$209 Cash

Dr. Kian Makipour, MD

Woodbridge, VA 22191

★★★★★ 4.8 (18)
57th VA Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (1,276 CMS services/yr).

✓ Accepts UnitedHealthcare ~$209 Cash

Dr. Rathi Narayan, MD

Kingsport, TN 37660

★★★★★ 4.8 (22)
74th TN Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (3,104 CMS services/yr).

✓ Accepts UnitedHealthcare ~$201 Cash

Dr. Mary Drinane, MD

Lebanon, NH 03756

★★★★★ 4.8 (18)
38th NH Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (892 CMS services/yr).

✓ Accepts UnitedHealthcare ~$209 Cash

Dr. Samer Charbel, MD

Olney, MD 20832

★★★★★ 4.8 (18)
2nd MD Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (663 CMS services/yr).

✓ Accepts UnitedHealthcare ~$209 Cash

Dr. Thomas Pacicco, MD

Charlotte, NC 28204

★★★★★ 4.8 (22)
85th NC Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (569 CMS services/yr).

✓ Accepts UnitedHealthcare ~$209 Cash

Dr. Darren Kastin, MD

Naperville, IL 60540

★★★★★ 4.8 (22)
1st IL Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (632 CMS services/yr).

✓ Accepts UnitedHealthcare ~$218 Cash

Dr. Javelle Wynter, MD

Dartmouth, MA 02747

★★★★★ 4.8 (22)
20th MA Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (754 CMS services/yr).

✓ Accepts UnitedHealthcare ~$224 Cash

Dr. Kevin Platt, MD

Ypsilanti, MI 48197

★★★★★ 4.8 (18)
46th MI Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (1,372 CMS services/yr).

✓ Accepts UnitedHealthcare ~$209 Cash

Dr. Ari Grinspan, MD

New York, NY 10029

★★★★★ 4.8 (22)
10th NY Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (708 CMS services/yr).

✓ Accepts UnitedHealthcare ~$239 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.