NPPES file of Aug 9, 2026

John William Secor, M.D.

Gastroenterology Physician · Dallas, TX

John William Secor, M.D. is a gastroenterology physician with a practice address in Dallas, Texas, and NPI 1568421014, issued on Mar 22, 2006. Check the license (Texas F4504, 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
1568421014
Name
John William Secor
Credential
M.D.
Primary taxonomy
Gastroenterology Physician 207RG0100X
License number
F4504 TX
Self-reported in NPPES; status is on the state search
Practice location
8220 Walnut Hill LN Ste 710, Dallas, TX 75231
Phone
(214) 368-6707
Enumerated
Mar 22, 2006
Record last updated
Sep 23, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(214) 368-1804
Medicaid ID
125112602 TX
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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8 nearest gastroenterology physician records → All 1,478 in Texas → Look up another NPI →

Also registered at 8220 Walnut Hill LN Ste 710

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

  1. Lisa Alvarez, M.D.Gastroenterology Physician1437315959
  2. Sami Arslanlar, MDGastroenterology Physician1033235684
  3. James Hakert, M.D.Gastroenterology Physician1467411298
  4. Samar Harris, M.D.Gastroenterology Physician1154532976
  5. Jacquelyn Lane, PAPhysician Assistant1871567776
  6. John Lee, M.D.Gastroenterology Physician1740240803

Verify John William Secor in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license F4504    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Industry payments in 2024: $82.34

4 payments; by number, the most common kind was food and beverage; the largest payer was Gilead Sciences, 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. John Secor$82.34
  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.

John William Secor among 1,478 gastroenterology physician records in Texas

John William Secor, 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 2006, is newer than 14% of them.

  • NPI issued2006 · 14% of these records are older, 51% newer
  • In a Medicare fileYes · 89% of these records are
  • In the CMS Doctors and Clinicians fileNo · 79% of these records are
  • Record last updated2020 · 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.

All 1,478 in Texas → Every provider in Dallas → Gastroenterology Physician nationwide →

The 8 gastroenterology physician records with the nearest ZIP codes

  1. Abrar Ahmed, MDDallas, TX 752311164533477
  2. Sami Arslanlar, MDDallas, TX 752311033235684
  3. Sally Brooks, M.D.Dallas, TX 752311568421360
  4. Andrew Gottesman, MDDallas, TX 752311316915010
  5. James Hakert, M.D.Dallas, TX 752311467411298
  6. Rajeev Jain, M.D.Dallas, TX 752311770527301
  7. John Lee, M.D.Dallas, TX 752311740240803
  8. Michael Nunez, M.D.Dallas, TX 752311669413019

Common questions

What is John William Secor, M.D.'s NPI number?

John William Secor, M.D.'s National Provider Identifier (NPI) is 1568421014, issued on Mar 22, 2006. An NPI identifies a provider in billing; it is not a license.

Where is John William Secor, M.D. located?

The NPPES record lists a practice address at 8220 Walnut Hill LN Ste 710, Dallas, TX, 75231. Phone: (214) 368-6707. Providers update this record themselves, so call before visiting.

How can I verify John William Secor, M.D.'s license?

NPPES lists Texas license number F4504, 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.

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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.