NPPES file of Aug 9, 2026

Gulchin A. Ergun, M.D.

Gastroenterology Physician · Houston, TX

Gulchin A. Ergun, M.D. is a gastroenterology physician with a practice address in Houston, Texas, and NPI 1497746812, issued on Nov 3, 2005. Check the license (Texas K4886, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1497746812
Name
Gulchin A. Ergun
Credential
M.D.
Primary taxonomy
Gastroenterology Physician 207RG0100X
License number
K4886 TX
Self-reported in NPPES; status is on the state search
Practice location
6560 Fannin St Ste 1160, Houston, TX 77030
Phone
(713) 933-2650
Enumerated
Nov 3, 2005
Record last updated
Sep 14, 2011 (not updated in 15 years: call before relying on the address or phone)
Fax
(713) 933-2653
Medicaid ID
100529003 TX
Medicare enrollment
Enrolled (PECOS I20050419000466); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 6560 Fannin St Ste 1160

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Timothy Sehorn, MDSurgery Physician1679568646
  2. Monica Shields, M.D.Cardiovascular Disease Physician1326243981

Verify Gulchin A. Ergun in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license K4886
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Texas license search

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51% fewer Medicare Part D claims than the average gastroenterology physician in 2024

394 Medicare Part D claims for 153 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims.

  1. Gulchin Ergun394
  2. Specialty average811

Most prescribed

  1. Omeprazole94 claims
  2. Pantoprazole Sodium42 claims
  3. Famotidine39 claims
  4. Esomeprazole Magnesium24 claims
  5. Linzess24 claims
  6. Ondansetron Hcl20 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Industry payments in 2024: $1,330.49

49 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 13,350 providers of this specialty with any payment received $5,015.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Gulchin Ergun$1,330.49
  2. Specialty average$5,015.95

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through 2 group practices

  1. Houston Methodist Specialty PhysiciansHouston, TX
  2. Tmh Physician Associates PLLCBellaire, TX

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Gulchin A. Ergun among 1,478 gastroenterology physician records in Texas

Gulchin A. Ergun, M.D. is one of 1,478 gastroenterology physician records with a practice address in Texas. 89% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 86% newer
  • In a Medicare fileYes · 89% of these records are
  • In the CMS Doctors and Clinicians fileYes · 79% of these records are
  • Graduated1984 · median 2003 among the 1,175 with a school on file
  • Record last updated2011 · 53% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Gastroenterology Physician providers in Texas

There are 1,478 gastroenterology physician records in Texas.

The 8 gastroenterology physician records with the nearest ZIP codes

  1. Victor Ankoma-Sey, M.D.Houston, TX 770301144226515
  2. Margaret Bridges, MDHouston, TX 770301013992916
  3. Brooks Cash, MDHouston, TX 770301114920626
  4. Suresh Chari, M.D.Houston, TX 770301326011487
  5. Stuart Dobbs, M.D.Houston, TX 770301093706491
  6. Brian Douglas, M.D.Houston, TX 770301578540761
  7. Fredric Hochman, M.D.Houston, TX 770301306842992
  8. Sandeep Lahoti, MDHouston, TX 770301134106602

Common questions

What is Gulchin A. Ergun, M.D.'s NPI number?

Gulchin A. Ergun, M.D.'s National Provider Identifier (NPI) is 1497746812, issued on Nov 3, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Gulchin A. Ergun, M.D. located?

The NPPES record lists a practice address at 6560 Fannin St Ste 1160, Houston, TX, 77030. Phone: (713) 933-2650. Providers update this record themselves, so call before visiting.

How can I verify Gulchin A. Ergun, M.D.'s license?

NPPES lists Texas license number K4886, as entered by the provider. Search the Texas Medical Board at https://profile.tmb.state.tx.us/Search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Gulchin A. Ergun, M.D. prescribe under Medicare Part D?

In 2024, Gulchin A. Ergun, M.D. had 394 Medicare Part D claims for 153 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.