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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 88 of 99

Dr. Quang Phan, MD

Garden Grove, CA 92843

★★★★★ 4.6 (20)
42nd CA Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (1,089 CMS services/yr).

✓ Accepts Kaiser Permanente ~$239 Cash

Dr. David Pinn, MD

Wayne, NJ 07470

★★★★★ 4.6 (24)
46th NJ Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (1,273 CMS services/yr).

✓ Accepts Kaiser Permanente ~$209 Cash

Dr. Daniel Marcadis, MD

Dalton, GA 30720

★★★★★ 4.6 (16)
41st GA Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (1,228 CMS services/yr).

✓ Accepts Kaiser Permanente ~$209 Cash

Dr. Mark Riner, MD

Daytona Beach, FL 32117

★★★★★ 4.6 (20)
40th FL Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (1,160 CMS services/yr).

✓ Accepts Kaiser Permanente ~$216 Cash

Dr. Eric Tatar, MD

West Nyack, NY 10994

★★★★★ 4.6 (24)
58th NY Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (1,378 CMS services/yr).

✓ Accepts Kaiser Permanente ~$232 Cash

Dr. Todd Jessup, MD

Rock Hill, NY 12775

★★★★★ 4.6 (16)
52nd NY Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (1,228 CMS services/yr).

✓ Accepts Kaiser Permanente ~$232 Cash

Dr. Bryan Contreras, MD

Tucson, AZ 85741

★★★★★ 4.6 (16)
39th AZ Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (992 CMS services/yr).

✓ Accepts Kaiser Permanente ~$207 Cash

Dr. Michael Cassidy, MD

Sellersville, PA 18960

★★★★★ 4.6 (20)
35th PA Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (1,204 CMS services/yr).

✓ Accepts Kaiser Permanente ~$209 Cash
★★★★★ 4.6 (20)
53rd SC Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (1,391 CMS services/yr).

✓ Accepts Kaiser Permanente ~$209 Cash

Dr. Shino Prasandhan, MD

East Meadow, NY 11554

★★★★★ 4.6 (20)
38th NY Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (1,004 CMS services/yr).

✓ Accepts Kaiser Permanente ~$232 Cash

Dr. David Rahni, MD

West Orange, NJ 07052

★★★★★ 4.6 (24)
33rd NJ Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (1,049 CMS services/yr).

✓ Accepts Kaiser Permanente ~$209 Cash

Dr. Asma Khapra, MD

Fairfax, VA 22031

★★★★★ 4.6 (16)
99th VA Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (4,305 CMS services/yr).

✓ Accepts Kaiser Permanente ~$209 Cash

Dr. Daniel Fagel, MD

Crestview Hills, KY 41017

★★★★★ 4.6 (16)
92nd KY Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (10,368 CMS services/yr).

✓ Accepts Kaiser Permanente ~$209 Cash

Dr. Michael Schmidt, MD

Teaneck, NJ 07666

★★★★★ 4.6 (16)
22nd NJ Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (906 CMS services/yr).

✓ Accepts Kaiser Permanente ~$209 Cash

Dr. Darran Moxon, MD

St Charles, IL 60175

★★★★★ 4.6 (20)
82nd IL Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (3,753 CMS services/yr).

✓ Accepts Kaiser Permanente ~$218 Cash

Dr. Timothy Chen, MD

San Francisco, CA 94115

★★★★★ 4.6 (24)
50th CA Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (1,209 CMS services/yr).

✓ Accepts Kaiser Permanente ~$250 Cash
★★★★★ 4.6 (16)
25th OR Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (1,103 CMS services/yr).

✓ Accepts Kaiser Permanente ~$209 Cash

Dr. Varun Kumar, MD

Fishkill, NY 12524

★★★★★ 4.6 (24)
89th NY Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (5,161 CMS services/yr).

✓ Accepts Kaiser Permanente ~$232 Cash

Dr. George Nikias, MD

River Edge, NJ 07661

★★★★★ 4.6 (24)
63rd NJ 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 Kaiser Permanente ~$209 Cash

Dr. Jaffer Khan, MD

Venice, FL 34293

★★★★★ 4.6 (24)
36th FL Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (1,100 CMS services/yr).

✓ Accepts Kaiser Permanente ~$216 Cash

Dr. Ahmed Khattab, MD

Niles, IL 60714

★★★★★ 4.6 (16)
46th IL Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (1,141 CMS services/yr).

✓ Accepts Kaiser Permanente ~$218 Cash

Dr. Anthony Lin, MD

Longwood, FL 32750

★★★★★ 4.6 (24)
19th FL Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (852 CMS services/yr).

✓ Accepts Kaiser Permanente ~$216 Cash

Dr. Lucy Joo, DO

Turnersville, NJ 08012

★★★★★ 4.6 (16)
30th NJ Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (1,014 CMS services/yr).

✓ Accepts Kaiser Permanente ~$209 Cash

Dr. Lance Mcleroy, MD

Athens, GA 30601

★★★★★ 4.6 (24)
51st GA Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (1,462 CMS services/yr).

✓ Accepts Kaiser Permanente ~$209 Cash

Dr. Jack Tocco, DO

Clinton Township, MI 48036

★★★★★ 4.6 (24)
44th MI Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (1,324 CMS services/yr).

✓ Accepts Kaiser Permanente ~$209 Cash

Dr. Daljit Bal, MD

Peoria, AZ 85381

★★★★★ 4.6 (24)
36th AZ Pct

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

✓ Accepts Kaiser Permanente ~$207 Cash

Dr. Mark Eisner, MD

Zephyrhills, FL 33542

★★★★★ 4.6 (24)
44th FL Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (1,233 CMS services/yr).

✓ Accepts Kaiser Permanente ~$216 Cash

Dr. Ken Nguyen, MD

Temple City, CA 91780

★★★★★ 4.6 (16)
47th CA Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (1,164 CMS services/yr).

✓ Accepts Kaiser Permanente ~$239 Cash

Dr. Larissa Fujii-Lau, MD

Rochester, MN 55905

★★★★★ 4.6 (24)
23rd MN Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (1,084 CMS services/yr).

✓ Accepts Kaiser Permanente ~$209 Cash

Dr. Mena Bakhit, MD

Burlington, MA 01805

★★★★★ 4.6 (20)
27th MA 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 Kaiser Permanente ~$224 Cash

Dr. Rachel Mepani, MD

Atlanta, GA 30309

★★★★★ 4.6 (16)
57th GA Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (1,873 CMS services/yr).

✓ Accepts Kaiser Permanente ~$210 Cash

Dr. Jonathan Mazurek, MD

Miami Beach, FL 33140

★★★★★ 4.6 (20)
23rd FL Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (926 CMS services/yr).

✓ Accepts Kaiser Permanente ~$216 Cash

Dr. Vernu Visvalingam, MD

Leominster, MA 01453

★★★★★ 4.6 (20)
41st MA Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (917 CMS services/yr).

✓ Accepts Kaiser Permanente ~$224 Cash

Dr. Nathaniel Winstead, MD

Fairhope, AL 36532

★★★★★ 4.6 (24)
6th AL 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 Kaiser Permanente ~$209 Cash

Dr. Shail Govani, MD

Columbus, OH 43202

★★★★★ 4.6 (16)
39th OH Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (1,014 CMS services/yr).

✓ Accepts Kaiser Permanente ~$209 Cash

Dr. Michael Lindner, MD

Bozeman, MT 59718

★★★★★ 4.6 (16)
40th MT Pct

Top Billed Procedure: Established Gastroenterology, GERD & IBD Evaluation [CPT 99214] • Diagnostic & screening colonoscopy with polypectomy (CPT 45378 / 45385) & subspecialty diagnostics (965 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.