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

David B Grissom, MD

Individual provider Internal Medicine Physician · NPI 1033188677

David B Grissom, MD practises Internal Medicine in Fort Worth, Texas. Graduated from University of Arkansas College of Medicine in 1992, 34 years ago. Practices with Acclaim Physician Group Inc, a 523-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Texas.

Years since qualifying
34
Trained at
University of Arkansas College of Medicine
Licensed in
TX
In the registry since
2006
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

1500 S Main St
Fort Worth, TX 76104-4917
Phone: (817) 702-1100
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 855 Montgomery, Fort Worth, TX 76107-2553 — (817) 920-7340

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence K7547 (TX)

Record details

NPI number1033188677
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 16, 2006
Last updated in NPPESSeptember 10, 2025
Certification dateSeptember 10, 2025

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolUNIVERSITY OF ARKANSAS COLLEGE OF MEDICINE
Graduated 1992 (34 years in practice)
Group practice Acclaim Physician Group Inc — 523 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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 patients17
Services billed 22 a service is one billed item, such as a visit, a test or a procedure
Average patient age64

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.

Colleagues at Acclaim Physician Group Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 523 clinicians in the practice; 12 are shown here.

Other providers in Fort Worth