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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 12 of 99

Dr. William Dyer, MD

Mountain Home, AR 72653

★★★★★ 4.9 (19)
24th AR Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (1,182 CMS services/yr).

✓ Accepts Cigna ~$209 Cash

Dr. John Kolnik, DO

Haddon Heights, NJ 08035

★★★★★ 4.9 (23)
34th NJ Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (1,070 CMS services/yr).

✓ Accepts Cigna ~$209 Cash

Dr. Gabrielle Adams, MD

Albuquerque, NM 87109

★★★★★ 4.9 (19)
97th NM Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (6,592 CMS services/yr).

✓ Accepts Cigna ~$209 Cash

Dr. Avin Aggarwal, MD

Tucson, AZ 85719

★★★★★ 4.9 (15)
92nd AZ Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (592 CMS services/yr).

✓ Accepts Cigna ~$207 Cash

Dr. Barry Kaufman, MD

Egg Harbor Township, NJ 08234

★★★★★ 4.9 (23)
81st NJ Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (556 CMS services/yr).

✓ Accepts Cigna ~$209 Cash

Dr. Frederick Rutkovsky, MD

Fresh Meadows, NY 11366

★★★★★ 4.9 (19)
56th NY Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (1,330 CMS services/yr).

✓ Accepts Cigna ~$232 Cash

Dr. Donald Wakelin, MD

Anacortes, WA 98221

★★★★★ 4.9 (19)
85th WA Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (560 CMS services/yr).

✓ Accepts Cigna ~$222 Cash

Dr. Andrew Overhiser, MD

Flagstaff, AZ 86001

★★★★★ 4.9 (15)
84th AZ Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (531 CMS services/yr).

✓ Accepts Cigna ~$207 Cash

Dr. Willemijntje Hoogerwerf, MD

St Augustine, FL 32086

★★★★★ 4.9 (22)
96th FL Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (13,864 CMS services/yr).

✓ Accepts Cigna ~$216 Cash

Dr. Adam Gluskin, MD

Chicago, IL 60611

★★★★★ 4.9 (18)
98th IL Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (15,795 CMS services/yr).

✓ Accepts Cigna ~$222 Cash
★★★★★ 4.9 (22)
41st OH 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 Cigna ~$209 Cash

Dr. John Ward, MD

Westerville, OH 43082

★★★★★ 4.9 (18)
17th OH Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (740 CMS services/yr).

✓ Accepts Cigna ~$209 Cash

Dr. Satish Nagula, MD

New York, NY 10029

★★★★★ 4.9 (18)
90th NY Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (578 CMS services/yr).

✓ Accepts Cigna ~$239 Cash

Dr. Maaza Abdi, MD

Baltimore, MD 21042

★★★★★ 4.9 (18)
90th MD Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (7,982 CMS services/yr).

✓ Accepts Cigna ~$209 Cash

Dr. Faisal Bukeirat, MD

Columbia, MO 65212

★★★★★ 4.9 (18)
93rd MO Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (581 CMS services/yr).

✓ Accepts Cigna ~$209 Cash

Dr. Jeffrey Weber, MD

Milwaukee, WI 53215

★★★★★ 4.9 (17)
99th WI Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (2,351,267 CMS services/yr).

✓ Accepts Cigna ~$209 Cash

Dr. Laya Nasrollah, MD

Camarillo, CA 93012

★★★★★ 4.9 (17)
99th CA Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (2,526 CMS services/yr).

✓ Accepts Cigna ~$239 Cash
★★★★★ 4.9 (17)
97th AZ Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (13,433 CMS services/yr).

✓ Accepts Cigna ~$207 Cash
★★★★★ 4.9 (21)
7th NC 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 Cigna ~$209 Cash

Dr. Humberto Aguilar, MD

Shreveport, LA 71115

★★★★★ 4.9 (17)
99th LA Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (37,004 CMS services/yr).

✓ Accepts Cigna ~$209 Cash

Dr. Matthew Spinn, MD

Houston, TX 77024

★★★★★ 4.9 (21)
98th TX Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (16,998 CMS services/yr).

✓ Accepts Cigna ~$212 Cash

Dr. Matthew Meriwether, MD

New Braunfels, TX 78130

★★★★★ 4.9 (17)
83rd TX Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (4,803 CMS services/yr).

✓ Accepts Cigna ~$209 Cash

Dr. Ryan Heath, MD

Gainsville, FL 32605

★★★★★ 4.9 (21)
16th FL Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (824 CMS services/yr).

✓ Accepts Cigna ~$216 Cash

Dr. Hazem Al-Ashhab, MD

Parkersburg, WV 26101

★★★★★ 4.9 (17)
15th WV Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (720 CMS services/yr).

✓ Accepts Cigna ~$209 Cash

Dr. Satya Kastuar, MD

North Brunswick, NJ 08902

★★★★★ 4.9 (17)
43rd NJ Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (1,224 CMS services/yr).

✓ Accepts Cigna ~$209 Cash

Dr. Ranga Kota, MD

Portage, IN 46368

★★★★★ 4.9 (21)
21st IN Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (773 CMS services/yr).

✓ Accepts Cigna ~$209 Cash

Dr. Cadman Leggett, MD

Rochester, MN 55905

★★★★★ 4.9 (21)
92nd MN Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (592 CMS services/yr).

✓ Accepts Cigna ~$209 Cash

Dr. Sajid Jalil, MBBS

Stanford, CA 94305

★★★★★ 4.9 (17)
88th CA Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (601 CMS services/yr).

✓ Accepts Cigna ~$239 Cash

Dr. Terri Blackstock, MD

Hot Springs, AR 71901

★★★★★ 4.9 (17)
92nd AR Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (590 CMS services/yr).

✓ Accepts Cigna ~$209 Cash

Dr. Ramsey Daher, MD

Chevy Chase, MD 20815

★★★★★ 4.9 (21)
74th MD Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (532 CMS services/yr).

✓ Accepts Cigna ~$209 Cash

Dr. Motaz Al-Hafnawi, MD

North Port, FL 34287

★★★★★ 4.9 (21)
13th FL Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (774 CMS services/yr).

✓ Accepts Cigna ~$216 Cash

Dr. Manoj Mittal, MD

Easton, PA 18045

★★★★★ 4.9 (24)
43rd PA Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (1,526 CMS services/yr).

✓ Accepts Cigna ~$209 Cash

Dr. Brian Markle, MD

Pontiac, MI 48341

★★★★★ 4.9 (20)
53rd MI Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (1,616 CMS services/yr).

✓ Accepts Cigna ~$209 Cash

Dr. Samir Cook, MD

Somerset, KY 42503

★★★★★ 4.9 (24)
59th KY Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (1,143 CMS services/yr).

✓ Accepts Cigna ~$209 Cash

Dr. Joseph Yoo, MD

Hazle Township, PA 18202

★★★★★ 4.9 (16)
45th PA Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (1,952 CMS services/yr).

✓ Accepts Cigna ~$209 Cash

Dr. Linda Yan, MD

Hazle Township, PA 18202

★★★★★ 4.9 (20)
97th PA Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (1,386 CMS services/yr).

✓ Accepts Cigna ~$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.