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

Mark J Nelson, MD

Individual provider Family Medicine Physician · NPI 1821307141

Mark J Nelson, MD is registered under Family Practice in Fort Worth, Texas. Graduated from Baylor College of Medicine in 1988, 38 years ago. Practices with Acclaim Physician Group Inc, a 523-clinician group and accepts Medicare assignment. Licensed in Texas.

Years since qualifying
38
Trained at
Baylor College of Medicine
Licensed in
TX
In the registry since
2010
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 John Peter Smith Hospital - Dept Family Medicine
Fort Worth, TX 76104-4917 Not confirmed with CMS for 12 years — call before visiting
Phone: (817) 926-1235
Fax: (817) 852-8445
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence H5791 (TX)

Record details

NPI number1821307141
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedOctober 4, 2010
Last updated in NPPESJune 27, 2014

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolBAYLOR COLLEGE OF MEDICINE
Graduated 1988 (38 years in practice)
Group practice Acclaim Physician Group Inc — 523 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 patients56
Services billed 73 a service is one billed item, such as a visit, a test or a procedure
Average patient age66

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