Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

John Gregory Buck, MD

Individual provider Anatomic Pathology & Clinical Pathology Physician · NPI 1154608552

John Gregory Buck, MD practises Pathology in Irving, Texas. Graduated from Wayne State University School of Medicine in 1991, 35 years ago. Practices with Ntx Pathology Program, PLLC, a 25-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Texas.

Years since qualifying
35
Trained at
Wayne State University School of Medicine
Licensed in
TX
In the registry since
2011
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

4770 Regent Blvd
Irving, TX 75063-2445
Phone: (972) 934-4300
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 700 East Marshall Ave, Longview, TX 75601-5580 — (903) 315-2000

Specialties & licences

Anatomic Pathology & Clinical Pathology Physician (primary) Taxonomy 207ZP0102X · Licence K4003 (TX)

Record details

NPI number1154608552
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedNovember 14, 2011
Last updated in NPPESJanuary 26, 2021
Certification dateJanuary 26, 2021

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyPATHOLOGY
Medical schoolWAYNE STATE UNIVERSITY SCHOOL OF MEDICINE
Graduated 1991 (35 years in practice)
Group practice Ntx Pathology Program, Pllc — 25 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients221
Services billed 709 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

  • Medical City Arlington Hospital · Arlington, TX · listed as Arlington Medical Clinic
  • Hca Houston Healthcare Kingwood Hospital · Kingwood, TX
  • Medical City Lewisville Hospital · Lewisville, TX
  • Medical City North Hills Hospital · North Richland Hills, TX

Colleagues at Ntx Pathology Program, PLLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 25 clinicians in the practice; 12 are shown here.

Other providers in Irving