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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 24 of 99

Dr. Barry Migicovsky, MD

Boulder, CO 80304

★★★★★ 5.0 (22)
70th CO Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (2,641 CMS services/yr).

✓ Accepts Kaiser Permanente ~$211 Cash

Dr. Fayez Abboud, MD

Troy, OH 45373

★★★★★ 5.0 (18)
32nd OH Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (905 CMS services/yr).

✓ Accepts Kaiser Permanente ~$209 Cash

Dr. Piush Gupta, MD

Cincinnati, OH 45247

★★★★★ 5.0 (22)
84th OH Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (6,282 CMS services/yr).

✓ Accepts Kaiser Permanente ~$209 Cash
★★★★★ 5.0 (22)
25th GA Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (893 CMS services/yr).

✓ Accepts Kaiser Permanente ~$209 Cash

Dr. Sanmeet Singh, MD

Frederick, MD 21702

★★★★★ 5.0 (18)
12th MD Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (760 CMS services/yr).

✓ Accepts Kaiser Permanente ~$209 Cash

Dr. Mark Dubin, MD

Hoffman Estates, IL 60169

★★★★★ 5.0 (18)
63rd IL Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (1,478 CMS services/yr).

✓ Accepts Kaiser Permanente ~$218 Cash

Dr. Arjun Sondhi, MD

Ann Arbor, MI 48109

★★★★★ 5.0 (18)
64th MI Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (2,597 CMS services/yr).

✓ Accepts Kaiser Permanente ~$209 Cash

Dr. Girish Pore', MD

Suwanee, GA 30024

★★★★★ 5.0 (18)
17th GA 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 Kaiser Permanente ~$209 Cash

Dr. Lawrence Borges, MD

Cambridge, MA 02138

★★★★★ 5.0 (18)
83rd MA Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (577 CMS services/yr).

✓ Accepts Kaiser Permanente ~$224 Cash

Dr. Brian Mulhall, MD

Tacoma, WA 98405

★★★★★ 5.0 (18)
86th WA Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (568 CMS services/yr).

✓ Accepts Kaiser Permanente ~$222 Cash

Dr. John Tully, MD

Brooklyn, OH 44144

★★★★★ 5.0 (22)
59th OH Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (1,533 CMS services/yr).

✓ Accepts Kaiser Permanente ~$209 Cash

Dr. Wen Boynton, MD

Indianapolis, IN 46202

★★★★★ 5.0 (22)
91st IN Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (588 CMS services/yr).

✓ Accepts Kaiser Permanente ~$209 Cash

Dr. Jianmin Tian, MD

Indianapolis, IN 46260

★★★★★ 5.0 (18)
76th IN Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (513 CMS services/yr).

✓ Accepts Kaiser Permanente ~$209 Cash

Dr. Joshua Stern, MD

Boynton Beach, FL 33437

★★★★★ 4.9 (21)
73rd FL Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (2,645 CMS services/yr).

✓ Accepts Kaiser Permanente ~$216 Cash

Dr. David Wortham, MD

Anderson, SC 29621

★★★★★ 4.9 (17)
73rd SC Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (2,023 CMS services/yr).

✓ Accepts Kaiser Permanente ~$209 Cash

Dr. Nizar Ramzan, MD

Houston, TX 77030

★★★★★ 4.9 (21)
75th TX Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (3,372 CMS services/yr).

✓ Accepts Kaiser Permanente ~$212 Cash

Dr. Laszlo Makk, MD

Louisville, KY 40218

★★★★★ 4.9 (21)
82nd KY Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (2,624 CMS services/yr).

✓ Accepts Kaiser Permanente ~$209 Cash

Dr. Casey Kolendich, MD

Missoula, MT 59808

★★★★★ 4.9 (21)
85th MT Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (7,281 CMS services/yr).

✓ Accepts Kaiser Permanente ~$209 Cash

Dr. Michelle Petro, MD

Flowood, MS 39232

★★★★★ 4.9 (17)
89th MS Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (12,568 CMS services/yr).

✓ Accepts Kaiser Permanente ~$209 Cash

Dr. Edward Kimbrough, MD

Columbia, SC 29204

★★★★★ 4.9 (21)
71st SC Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (1,969 CMS services/yr).

✓ Accepts Kaiser Permanente ~$209 Cash

Dr. Arif Ishmael, MD

Stuart, FL 34994

★★★★★ 4.9 (21)
46th FL Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (1,285 CMS services/yr).

✓ Accepts Kaiser Permanente ~$216 Cash

Dr. Maria Castellano, MD

Valdosta, GA 31602

★★★★★ 4.9 (17)
52nd GA Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (1,477 CMS services/yr).

✓ Accepts Kaiser Permanente ~$209 Cash

Dr. Tarek Ammar, MD

Las Vegas, NV 89113

★★★★★ 4.9 (17)
81st NV Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (1,878 CMS services/yr).

✓ Accepts Kaiser Permanente ~$209 Cash

Dr. Hugo Villarreal, MD

Saint Louis, MO 63131

★★★★★ 4.9 (17)
52nd MO Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (1,313 CMS services/yr).

✓ Accepts Kaiser Permanente ~$209 Cash

Dr. Philip Adjei, MD

Libertyville, IL 60048

★★★★★ 4.9 (17)
45th IL Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (1,121 CMS services/yr).

✓ Accepts Kaiser Permanente ~$218 Cash

Dr. Richard Del Rio, MD

Brunswick, OH 44212

★★★★★ 4.9 (17)
53rd OH Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (1,241 CMS services/yr).

✓ Accepts Kaiser Permanente ~$209 Cash

Dr. Mark Kocab, MD

Kalamazoo, MI 49007

★★★★★ 4.9 (17)
86th MI Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (4,939 CMS services/yr).

✓ Accepts Kaiser Permanente ~$209 Cash

Dr. Ernest Ribera, MD

Burlingame, CA 94010

★★★★★ 4.9 (21)
96th CA Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (6,670 CMS services/yr).

✓ Accepts Kaiser Permanente ~$239 Cash

Dr. Randy Geldmacher, MD

Richland, WA 99352

★★★★★ 4.9 (17)
41st WA 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 Kaiser Permanente ~$222 Cash

Dr. Steven Shields, MD

Boston, MA 02215

★★★★★ 4.9 (21)
56th MA Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (1,113 CMS services/yr).

✓ Accepts Kaiser Permanente ~$227 Cash

Dr. Matthew Harrison, MD

Indianapolis, IN 46250

★★★★★ 4.9 (21)
38th IN Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (974 CMS services/yr).

✓ Accepts Kaiser Permanente ~$209 Cash

Dr. Ari Bunim, MD

Flushing, NY 11355

★★★★★ 4.9 (17)
28th NY Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (891 CMS services/yr).

✓ Accepts Kaiser Permanente ~$232 Cash

Dr. George Jenkins, MD

Columbia, SC 29201

★★★★★ 4.9 (21)
25th SC Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (874 CMS services/yr).

✓ Accepts Kaiser Permanente ~$209 Cash

Dr. William Taub, MD

Lumberton, NJ 08048

★★★★★ 4.9 (17)
10th NJ Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (732 CMS services/yr).

✓ Accepts Kaiser Permanente ~$209 Cash

Dr. Paul Benson, MD

Georgetown, SC 29440

★★★★★ 4.9 (21)
27th SC Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (887 CMS services/yr).

✓ Accepts Kaiser Permanente ~$209 Cash

Dr. Robert Yacavone, MD

Conway, SC 29526

★★★★★ 4.9 (17)
16th SC Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (797 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.