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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 20 of 99

Dr. Loan Vu, DO

Austell, GA 30106

★★★★★ 4.6 (22)
15th GA Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (787 CMS services/yr).

✓ Accepts UnitedHealthcare ~$209 Cash

Dr. Jeffrey Riggs, DO

Glasgow, KY 42141

★★★★★ 4.6 (22)
34th KY Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (848 CMS services/yr).

✓ Accepts UnitedHealthcare ~$209 Cash

Dr. Steven Zeddun, MD

Washington, DC 20037

★★★★★ 4.6 (18)
95th DC Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (15,414 CMS services/yr).

✓ Accepts UnitedHealthcare ~$209 Cash

Dr. Ashraf Abushahin, MD

Fairview Park, OH 44126

★★★★★ 4.6 (26)
7th OH Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (671 CMS services/yr).

✓ Accepts UnitedHealthcare ~$209 Cash

Dr. Won Yu, MD

Tustin, CA 92780

★★★★★ 4.6 (22)
54th CA Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (1,279 CMS services/yr).

✓ Accepts UnitedHealthcare ~$239 Cash

Dr. Moustafa Alamy, MD

Paramount, CA 90723

★★★★★ 4.6 (21)
93rd CA Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (4,095 CMS services/yr).

✓ Accepts UnitedHealthcare ~$239 Cash

Dr. Fadi Rzouq, MBBS

Norfolk, NE 68701

★★★★★ 4.6 (21)
96th NE Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (5,708 CMS services/yr).

✓ Accepts UnitedHealthcare ~$209 Cash
★★★★★ 4.6 (25)
92nd OK Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (9,642 CMS services/yr).

✓ Accepts UnitedHealthcare ~$209 Cash

Dr. Anam Omer, MD

Houston, TX 77030

★★★★★ 4.6 (21)
98th TX Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (1,334 CMS services/yr).

✓ Accepts UnitedHealthcare ~$212 Cash

Dr. Irena Maier, MD

Boston, MA 02215

★★★★★ 4.6 (21)
89th MA Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (3,029 CMS services/yr).

✓ Accepts UnitedHealthcare ~$227 Cash

Dr. Alex Sherman, MD

New York, NY 10016

★★★★★ 4.6 (21)
92nd NY Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (6,399 CMS services/yr).

✓ Accepts UnitedHealthcare ~$239 Cash

Dr. Edward Cuaresma, MD

Seattle, WA 98101

★★★★★ 4.6 (25)
98th WA Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (704 CMS services/yr).

✓ Accepts UnitedHealthcare ~$225 Cash

Dr. Mehul Parikh, MD

Loganville, GA 30052

★★★★★ 4.6 (17)
22nd GA Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (845 CMS services/yr).

✓ Accepts UnitedHealthcare ~$209 Cash

Dr. Alexander Lee, MD

Woodland Hills, CA 91367

★★★★★ 4.6 (17)
20th CA Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (818 CMS services/yr).

✓ Accepts UnitedHealthcare ~$239 Cash

Dr. Michael Hightower, MD

Jonesboro, AR 72401

★★★★★ 4.6 (17)
68th AR Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (507 CMS services/yr).

✓ Accepts UnitedHealthcare ~$209 Cash

Dr. Peter Ojuro, DO

Carrollton, GA 30117

★★★★★ 4.6 (25)
98th GA Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (621 CMS services/yr).

✓ Accepts UnitedHealthcare ~$209 Cash

Dr. Dina Ezzeddine, MD

Lafayette, CA 94549

★★★★★ 4.6 (25)
4th CA Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (670 CMS services/yr).

✓ Accepts UnitedHealthcare ~$239 Cash
★★★★★ 4.6 (17)
89th NC Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (589 CMS services/yr).

✓ Accepts UnitedHealthcare ~$209 Cash

Dr. Hadiatou Barry, MD

Louisville, KY 40203

★★★★★ 4.6 (21)
89th KY Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (5,935 CMS services/yr).

✓ Accepts UnitedHealthcare ~$209 Cash

Dr. John Nathanson, MD

New York, NY 10019

★★★★★ 4.6 (21)
95th NY Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (618 CMS services/yr).

✓ Accepts UnitedHealthcare ~$239 Cash

Dr. Hillary Bownik, MD

Kansas City, MO 64111

★★★★★ 4.6 (20)
99th MO Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (61,872 CMS services/yr).

✓ Accepts UnitedHealthcare ~$209 Cash

Dr. Amit Goyal, MD

San Antonio, TX 78215

★★★★★ 4.6 (20)
97th TX Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (1,052 CMS services/yr).

✓ Accepts UnitedHealthcare ~$209 Cash

Dr. Kevin Tin, MD

Brooklyn, NY 11223

★★★★★ 4.6 (20)
95th NY Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (7,317 CMS services/yr).

✓ Accepts UnitedHealthcare ~$232 Cash

Dr. Chandrasekhara. Punukollu, MD

Mount Pleasant, PA 15666

★★★★★ 4.6 (16)
91st PA Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (600 CMS services/yr).

✓ Accepts UnitedHealthcare ~$209 Cash

Dr. Neville Bamji, MD

New York, NY 10075

★★★★★ 4.6 (24)
95th NY Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (620 CMS services/yr).

✓ Accepts UnitedHealthcare ~$239 Cash
★★★★★ 4.6 (20)
94th ME Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (529 CMS services/yr).

✓ Accepts UnitedHealthcare ~$209 Cash

Dr. Thadis Cox, MD

Morehead, KY 40351

★★★★★ 4.6 (20)
22nd KY Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (744 CMS services/yr).

✓ Accepts UnitedHealthcare ~$209 Cash

Dr. Vivek Mittal, MD

Fresno, CA 93720

★★★★★ 4.6 (16)
79th CA Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (2,031 CMS services/yr).

✓ Accepts UnitedHealthcare ~$239 Cash

Dr. Richard Goldberg, DO

Greenwood, MS 38930

★★★★★ 4.6 (15)
33rd MS Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (2,065 CMS services/yr).

✓ Accepts UnitedHealthcare ~$209 Cash

Dr. Allan Coates, DO

Wyoming, MI 49519

★★★★★ 4.6 (15)
88th MI Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (5,795 CMS services/yr).

✓ Accepts UnitedHealthcare ~$209 Cash

Dr. Vishwas Vanar, MD

Winter Garden, FL 34787

★★★★★ 4.6 (19)
52nd FL Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (1,408 CMS services/yr).

✓ Accepts UnitedHealthcare ~$216 Cash

Dr. Krupa Shah, MD

Bourbonnais, IL 60914

★★★★★ 4.6 (23)
98th IL Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (930 CMS services/yr).

✓ Accepts UnitedHealthcare ~$218 Cash

Dr. Jozsef Duhl, MD

Avenel, NJ 07001

★★★★★ 4.6 (19)
55th NJ Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (1,421 CMS services/yr).

✓ Accepts UnitedHealthcare ~$209 Cash

Dr. Christopher Tomaino, MD

Patchogue, NY 11772

★★★★★ 4.6 (15)
34th NY Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (945 CMS services/yr).

✓ Accepts UnitedHealthcare ~$232 Cash

Dr. Robert Klapheke, MD

Austin, TX 78745

★★★★★ 4.6 (15)
97th TX Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (997 CMS services/yr).

✓ Accepts UnitedHealthcare ~$211 Cash
★★★★★ 4.6 (18)
38th NC Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (1,880 CMS services/yr).

✓ Accepts UnitedHealthcare ~$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.