John Gregory Buck, MD
Anatomic Pathology & Clinical Pathology Physician · Irving, TX
John Gregory Buck, MD is an anatomic pathology & clinical pathology physician with a practice address in Irving, Texas, and NPI 1154608552, issued on Nov 14, 2011. Check the license (Texas K4003, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- John Gregory Buck
- Credential
- MD
- Primary taxonomy
- Anatomic Pathology & Clinical Pathology Physician 207ZP0102X
- License number
- K4003 TX
Self-reported in NPPES; status is on the state search - Practice location
- 4770 Regent Blvd, Irving, TX 75063
- Phone
- (972) 934-4300
- Enumerated
- Nov 14, 2011
- Record last updated
- Jan 26, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20111228000088); accepts Medicare assignment
- Medical or professional school
- Wayne State University School Of Medicine, 1991
- Entity
- Type 1 · individual
8 nearest anatomic pathology & clinical pathology physician records → All 1,424 in Texas → Look up another NPI →
Also registered at 4770 Regent Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Keith Aldred, MDAnatomic Pathology & Clinical Pathology Physician1629058607
- Aditi Anand, MDAnatomic Pathology & Clinical Pathology Physician1184604522
- Salman Ayub, M.DAnatomic Pathology & Clinical Pathology Physician1306077557
- Sharlene Batiste-Milton, MDAnatomic Pathology & Clinical Pathology Physician1083694079
- Margaret Bell, MDAnatomic Pathology & Clinical Pathology Physician1932189388
- Rahman Chaudhry, M.D.Anatomic Pathology & Clinical Pathology Physician1063831451
Verify John Gregory Buck in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license K4003Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Ntx Pathology Program, PLLCArlington, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John Gregory Buck among 1,424 anatomic pathology & clinical pathology physician records in Texas
John Gregory Buck, MD is one of 1,424 anatomic pathology & clinical pathology physician records with a practice address in Texas. 65% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 70% of them.
- NPI issued2011 · 70% of these records are older, 27% newer
- In a Medicare fileYes · 65% of these records are
- In the CMS Doctors and Clinicians fileYes · 61% of these records are
- Graduated1991 · median 2001 among the 864 with a school on file
- Record last updated2021 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207ZP0102X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
59 anatomic pathology & clinical pathology physician records list a practice address in Irving
They are 59 of the 3,532 NPPES records with a practice address in Irving, and 1,424 anatomic pathology & clinical pathology physician records in Texas.
All 1,424 in Texas → Every provider in Irving → Anatomic Pathology & Clinical Pathology Physician nationwide →
The 8 anatomic pathology & clinical pathology physician records with the nearest ZIP codes
- Keith Aldred, MDIrving, TX 750631629058607
- Aditi Anand, MDIrving, TX 750631184604522
- Sharlene Batiste-Milton, MDIrving, TX 750631083694079
- Margaret Bell, MDIrving, TX 750631932189388
- Terri Crook, M.D.Irving, TX 750631982689311
- Richard Hare, MDIrving, TX 750631891775714
- Stephen Jolissaint, MDIrving, TX 750631659351922
- David King, MDIrving, TX 750631285614552
Common questions
What is John Gregory Buck, MD's NPI number?
John Gregory Buck, MD's National Provider Identifier (NPI) is 1154608552, issued on Nov 14, 2011. An NPI identifies a provider in billing; it is not a license.
Where is John Gregory Buck, MD located?
The NPPES record lists a practice address at 4770 Regent Blvd, Irving, TX, 75063. Phone: (972) 934-4300. Providers update this record themselves, so call before visiting.
How can I verify John Gregory Buck, MD's license?
NPPES lists Texas license number K4003, 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.
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.