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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 81 of 99

Dr. Zachary Marwil, MD

Wantagh, NY 11793

★★★★★ 4.6 (20)
15th NY Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (756 CMS services/yr).

✓ Accepts Cigna ~$232 Cash

Dr. Malorie Simons, MD

Philadelphia, PA 19111

★★★★★ 4.6 (20)
11th PA Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (722 CMS services/yr).

✓ Accepts Cigna ~$209 Cash

Dr. George Tannous, MD

Rockford, IL 61107

★★★★★ 4.6 (20)
90th IL Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (6,061 CMS services/yr).

✓ Accepts Cigna ~$218 Cash

Dr. Kerolos Abadeer, MD

Orange Park, FL 32073

★★★★★ 4.6 (16)
72nd FL Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (2,550 CMS services/yr).

✓ Accepts Cigna ~$216 Cash

Dr. Irena Zalewska, MD

St Clair Shores, MI 48081

★★★★★ 4.6 (24)
49th MI Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (1,498 CMS services/yr).

✓ Accepts Cigna ~$209 Cash

Dr. Steven Gadol, MD

Richardson, TX 75080

★★★★★ 4.6 (24)
38th TX Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (1,095 CMS services/yr).

✓ Accepts Cigna ~$209 Cash

Dr. Laura Gitlin, MD

Las Vegas, NV 89128

★★★★★ 4.6 (20)
10th NV Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (686 CMS services/yr).

✓ Accepts Cigna ~$209 Cash

Dr. Carmelo Herrero, MD

Henderson, NV 89011

★★★★★ 4.6 (20)
3rd NV Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (640 CMS services/yr).

✓ Accepts Cigna ~$209 Cash

Dr. Laura Alba, MD

Kansas City, MO 64111

★★★★★ 4.6 (16)
71st MO Pct

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

✓ Accepts Cigna ~$209 Cash

Dr. Shravani Reddy, MD

Orange, CA 92868

★★★★★ 4.6 (24)
11th CA Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (737 CMS services/yr).

✓ Accepts Cigna ~$239 Cash

Dr. Sean Connelly, DO

Beaver Falls, PA 15010

★★★★★ 4.6 (16)
77th PA Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (509 CMS services/yr).

✓ Accepts Cigna ~$209 Cash

Dr. Max Shapiro, MD

Atlanta, GA 30342

★★★★★ 4.6 (16)
82nd GA Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (522 CMS services/yr).

✓ Accepts Cigna ~$210 Cash

Dr. Parth Patel, MD

Fayetteville, AR 72703

★★★★★ 4.6 (16)
96th AR Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (609 CMS services/yr).

✓ Accepts Cigna ~$209 Cash

Dr. Karen Jerome-Zapadka, MD

Beaver Falls, PA 15010

★★★★★ 4.6 (16)
69th PA Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (467 CMS services/yr).

✓ Accepts Cigna ~$209 Cash

Dr. Ellen Stein, MD

Baltimore, MD 21287

★★★★★ 4.6 (24)
87th MD Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (606 CMS services/yr).

✓ Accepts Cigna ~$209 Cash

Dr. Vishnu Reddy, MD

Ocala, FL 34471

★★★★★ 4.6 (16)
75th FL Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (3,014 CMS services/yr).

✓ Accepts Cigna ~$216 Cash

Dr. Brian Rajca, MD

Cape Coral, FL 33990

★★★★★ 4.6 (19)
66th FL Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (2,048 CMS services/yr).

✓ Accepts Cigna ~$216 Cash

Dr. Cristina Wiese, MD

Thousand Oaks, CA 91361

★★★★★ 4.6 (15)
71st CA Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (1,685 CMS services/yr).

✓ Accepts Cigna ~$239 Cash

Dr. Richard Fried, MD

Huntington, NY 11743

★★★★★ 4.6 (23)
57th NY Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (1,335 CMS services/yr).

✓ Accepts Cigna ~$232 Cash

Dr. Laura Balmain, MD

Texarkana, TX 75503

★★★★★ 4.6 (19)
95th TX Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (10,725 CMS services/yr).

✓ Accepts Cigna ~$209 Cash

Dr. Kunal Gupta, MD

Freehold, NJ 07728

★★★★★ 4.6 (19)
59th NJ Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (1,513 CMS services/yr).

✓ Accepts Cigna ~$209 Cash

Dr. Charles Loewe, MD

Sarasota, FL 34239

★★★★★ 4.6 (23)
98th FL Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (27,895 CMS services/yr).

✓ Accepts Cigna ~$216 Cash

Dr. Paul Mazanec, MD

Greenville, SC 29607

★★★★★ 4.6 (23)
81st SC Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (2,682 CMS services/yr).

✓ Accepts Cigna ~$209 Cash

Dr. Michael Freeman, MD

Cape Girardeau, MO 63703

★★★★★ 4.6 (19)
55th MO Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (1,419 CMS services/yr).

✓ Accepts Cigna ~$209 Cash

Dr. James Herrington, MD

Lafayette, LA 70503

★★★★★ 4.6 (15)
39th LA Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (1,974 CMS services/yr).

✓ Accepts Cigna ~$209 Cash

Dr. Syedkashif Haider, MD

Elizabethtown, KY 42701

★★★★★ 4.6 (19)
67th KY Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (1,226 CMS services/yr).

✓ Accepts Cigna ~$209 Cash

Dr. Frederick Rowe, MD

San Ramon, CA 94583

★★★★★ 4.6 (15)
48th CA Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (1,179 CMS services/yr).

✓ Accepts Cigna ~$239 Cash

Dr. Azam Riyaz, MD

Torrance, CA 90505

★★★★★ 4.6 (23)
56th CA Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (1,321 CMS services/yr).

✓ Accepts Cigna ~$239 Cash

Dr. Rajat Sood, MD

Henderson, NV 89052

★★★★★ 4.6 (23)
66th NV Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (1,483 CMS services/yr).

✓ Accepts Cigna ~$209 Cash

Dr. Allen Hwang, MD

Boston, MA 02111

★★★★★ 4.6 (23)
79th MA Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (1,810 CMS services/yr).

✓ Accepts Cigna ~$227 Cash

Dr. Sunil Joseph, MD

Elgin, IL 60123

★★★★★ 4.6 (19)
84th IL Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (4,163 CMS services/yr).

✓ Accepts Cigna ~$218 Cash

Dr. Karolina Siniakowicz, DO

Englewood, FL 34223

★★★★★ 4.6 (15)
32nd FL Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (1,047 CMS services/yr).

✓ Accepts Cigna ~$216 Cash

Dr. John Arledge, MD

Carrollton, GA 30117

★★★★★ 4.6 (19)
44th GA Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (1,268 CMS services/yr).

✓ Accepts Cigna ~$209 Cash

Dr. Mitchell Locke, MD

Lake Success, NY 11042

★★★★★ 4.6 (23)
84th NY Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (3,734 CMS services/yr).

✓ Accepts Cigna ~$232 Cash

Dr. Sunil Gupta, MD

Carmel, NY 10512

★★★★★ 4.6 (23)
73rd NY Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (2,150 CMS services/yr).

✓ Accepts Cigna ~$232 Cash

Dr. Claudia Barghash, MD

Hillsborough, NJ 08844

★★★★★ 4.6 (19)
92nd NJ Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (5,635 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.