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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 4 of 99

Dr. Michael Greenwell, MD

Louisville, KY 40207

★★★★★ 4.9 (26)
26th KY 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 ~$209 Cash

Dr. Yatin Patel, MD

Chandler, AZ 85224

★★★★★ 4.9 (26)
79th AZ Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (2,481 CMS services/yr).

✓ Accepts UnitedHealthcare ~$207 Cash

Dr. Jose Marcal, MD

Stoneham, MA 02180

★★★★★ 4.9 (26)
99th MA Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (14,207 CMS services/yr).

✓ Accepts UnitedHealthcare ~$224 Cash

Dr. Laura Smart, MD

Jackson, MS 39216

★★★★★ 4.9 (26)
5th MS Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (684 CMS services/yr).

✓ Accepts UnitedHealthcare ~$209 Cash

Dr. Sheldon Berger, DO

Tulsa, OK 74133

★★★★★ 4.9 (26)
87th OK Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (8,167 CMS services/yr).

✓ Accepts UnitedHealthcare ~$209 Cash

Dr. Scott Hande, MD

Hendersonville, TN 37075

★★★★★ 4.9 (26)
21st TN Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (860 CMS services/yr).

✓ Accepts UnitedHealthcare ~$201 Cash

Dr. Thomas Young, MD

Knoxville, TN 37920

★★★★★ 4.9 (26)
81st TN Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (582 CMS services/yr).

✓ Accepts UnitedHealthcare ~$201 Cash

Dr. Sammy Ho, MD

Bronx, NY 10467

★★★★★ 4.9 (26)
11th NY Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (714 CMS services/yr).

✓ Accepts UnitedHealthcare ~$232 Cash

Dr. John Ryan, MD

Las Vegas, NV 89103

★★★★★ 4.9 (26)
62nd NV Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (1,367 CMS services/yr).

✓ Accepts UnitedHealthcare ~$209 Cash

Dr. Gunjan Shah, MD

Livonia, MI 48154

★★★★★ 4.9 (26)
14th MI Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (762 CMS services/yr).

✓ Accepts UnitedHealthcare ~$209 Cash

Dr. Jadesola Omoyeni, MD

San Antonio, TX 78217

★★★★★ 4.9 (26)
2nd TX Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (639 CMS services/yr).

✓ Accepts UnitedHealthcare ~$209 Cash

Dr. Michael Greenspan, MD

Elmhurst, IL 60126

★★★★★ 4.9 (26)
4th IL Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (682 CMS services/yr).

✓ Accepts UnitedHealthcare ~$218 Cash

Dr. Anthony Rosa, MD

Bala Cynwyd, PA 19004

★★★★★ 4.9 (26)
94th PA Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (624 CMS services/yr).

✓ Accepts UnitedHealthcare ~$209 Cash

Dr. Mehrdad Asgeri, MD

Palm Springs, CA 92262

★★★★★ 4.9 (25)
84th CA Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (2,504 CMS services/yr).

✓ Accepts UnitedHealthcare ~$239 Cash
★★★★★ 4.9 (25)
77th NJ Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (2,245 CMS services/yr).

✓ Accepts UnitedHealthcare ~$209 Cash

Dr. Vishvinder Sharma, MD

North Las Vegas, NV 89030

★★★★★ 4.9 (25)
83rd NV Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (1,968 CMS services/yr).

✓ Accepts UnitedHealthcare ~$209 Cash

Dr. Neil Cohen, MD

Marlton, NJ 08053

★★★★★ 4.9 (25)
47th NJ Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (1,284 CMS services/yr).

✓ Accepts UnitedHealthcare ~$209 Cash

Dr. Paul Williams, MD

Little Rock, AR 72205

★★★★★ 4.9 (25)
46th AR Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (2,121 CMS services/yr).

✓ Accepts UnitedHealthcare ~$209 Cash

Dr. Russell Carter, DO

Paducah, KY 42003

★★★★★ 4.9 (25)
38th KY Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (853 CMS services/yr).

✓ Accepts UnitedHealthcare ~$209 Cash

Dr. Jeanetta Frye, MD

Charlottesville, VA 22903

★★★★★ 4.9 (25)
18th VA Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (812 CMS services/yr).

✓ Accepts UnitedHealthcare ~$209 Cash

Dr. Namita Pareek, MD

Gainesville, GA 30501

★★★★★ 4.9 (25)
72nd GA Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (3,453 CMS services/yr).

✓ Accepts UnitedHealthcare ~$209 Cash

Dr. Nizam Meah, MD

Lake Jackson, TX 77566

★★★★★ 4.9 (25)
77th TX Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (3,459 CMS services/yr).

✓ Accepts UnitedHealthcare ~$209 Cash

Dr. Ali Akbar, MD

Memphis, TN 38104

★★★★★ 4.9 (25)
53rd TN Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (1,505 CMS services/yr).

✓ Accepts UnitedHealthcare ~$201 Cash

Dr. Philip Sarges, MD

Grand Junction, CO 81501

★★★★★ 4.9 (25)
37th CO Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (846 CMS services/yr).

✓ Accepts UnitedHealthcare ~$211 Cash

Dr. Stephen Abshire, MD

Lafayette, LA 70503

★★★★★ 4.9 (25)
60th LA Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (3,341 CMS services/yr).

✓ Accepts UnitedHealthcare ~$209 Cash

Dr. Karen Kim, MD

Stanford, CA 94305

★★★★★ 4.9 (25)
21st CA Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (825 CMS services/yr).

✓ Accepts UnitedHealthcare ~$239 Cash

Dr. John Dumot, DO

Cleveland, OH 44106

★★★★★ 4.9 (25)
5th OH Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (668 CMS services/yr).

✓ Accepts UnitedHealthcare ~$209 Cash

Dr. Michael Zerega, MD

Lake St Louis, MO 63367

★★★★★ 4.9 (25)
88th MO Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (552 CMS services/yr).

✓ Accepts UnitedHealthcare ~$209 Cash
★★★★★ 4.9 (25)
7th NY Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (677 CMS services/yr).

✓ Accepts UnitedHealthcare ~$239 Cash

Dr. Gina Choi, MD

Los Angeles, CA 90095

★★★★★ 4.9 (25)
73rd CA Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (504 CMS services/yr).

✓ Accepts UnitedHealthcare ~$231 Cash

Dr. Aijaz Turk, MD

Kalamazoo, MI 49048

★★★★★ 4.9 (25)
94th MI Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (585 CMS services/yr).

✓ Accepts UnitedHealthcare ~$209 Cash

Dr. Christopher Wells, MD

Panama City, FL 32405

★★★★★ 4.9 (26)
98th FL Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (27,851 CMS services/yr).

✓ Accepts UnitedHealthcare ~$216 Cash
★★★★★ 4.9 (26)
83rd CA Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (2,440 CMS services/yr).

✓ Accepts UnitedHealthcare ~$239 Cash

Dr. Nathan Schulman, MD

Great Neck, NY 11023

★★★★★ 4.9 (26)
99th NY Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (2,948 CMS services/yr).

✓ Accepts UnitedHealthcare ~$232 Cash

Dr. Gregory Olds, MD

Chattanooga, TN 37404

★★★★★ 4.9 (26)
49th TN Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (1,375 CMS services/yr).

✓ Accepts UnitedHealthcare ~$201 Cash

Dr. Thomas Hsia, MD

Santa Maria, CA 93458

★★★★★ 4.9 (26)
78th CA Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (1,954 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.