Mark J. Nelson, M.D.
Family Medicine Physician · Fort Worth, TX
Mark J. Nelson, M.D. is a family medicine physician with a practice address in Fort Worth, Texas, and NPI 1821307141, issued on Oct 4, 2010. Check the license (Texas H5791, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Mark J. Nelson
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- H5791 TX
Self-reported in NPPES; status is on the state search - Practice location
- 1500 S Main St, Fort Worth, TX 76104
- Phone
- (817) 926-1235
- Enumerated
- Oct 4, 2010
- Record last updated
- Jun 27, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (817) 852-8445
- Medicare enrollment
- Enrolled (PECOS I20110103000764); accepts Medicare assignment
- Medical or professional school
- Baylor College Of Medicine, 1988
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 11,119 in Texas → Look up another NPI →
Also registered at 1500 S Main St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Montserrat Abadie Sole, M.D.Family Medicine Physician1245437078
- Arlene Abraham, DOStudent in an Organized Health Care Education/Training Program1316735277
- Katherine Abtahi, DOObstetrics & Gynecology Physician1831457621
- Amir Abuchaei, DOPsychiatry Physician1851929186
- William Adams, MDStudent in an Organized Health Care Education/Training Program1114612959
- Rufus Aderounmu, MDStudent in an Organized Health Care Education/Training Program1780434894
Verify Mark J. Nelson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license H5791Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
72% fewer Medicare Part D claims than the average family medicine physician in 2024
984 Medicare Part D claims for 68 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium80 claims
- Metformin Hcl60 claims
- Diclofenac Sodium53 claims
- Amlodipine Besylate51 claims
- Pantoprazole Sodium41 claims
- Famotidine33 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 92 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Acclaim Physician Group IncFort Worth, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mark J. Nelson among 11,119 family medicine physician records in Texas
Mark J. Nelson, M.D. is one of 11,119 family medicine physician records with a practice address in Texas. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 62% of them.
- NPI issued2010 · 62% of these records are older, 36% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated1988 · median 2004 among the 7,095 with a school on file
- Record last updated2014 · 51% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
452 family medicine physician records list a practice address in Fort Worth
They are 452 of the 15,511 NPPES records with a practice address in Fort Worth, and 11,119 family medicine physician records in Texas.
All 11,119 in Texas → Every provider in Fort Worth → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Joane Baumer, M.D.Fort Worth, TX 761041003805706
- Elizabeth Carter, M.D.Fort Worth, TX 761041184613663
- Daniel Casey, M.D.Fort Worth, TX 761041457340010
- Ricky Edwards, MDFort Worth, TX 761041457358699
- Craig Kneten, MDFort Worth, TX 761041043278815
- Mark Koch, M.D.Fort Worth, TX 761041174512651
- Loren Lasater, MDFort Worth, TX 761041023098662
- Joseph Martin, M.D.Fort Worth, TX 761041447211644
Common questions
What is Mark J. Nelson, M.D.'s NPI number?
Mark J. Nelson, M.D.'s National Provider Identifier (NPI) is 1821307141, issued on Oct 4, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Mark J. Nelson, M.D. located?
The NPPES record lists a practice address at 1500 S Main St, Fort Worth, TX, 76104. Phone: (817) 926-1235. Providers update this record themselves, so call before visiting.
How can I verify Mark J. Nelson, M.D.'s license?
NPPES lists Texas license number H5791, 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.
How much does Mark J. Nelson, M.D. prescribe under Medicare Part D?
In 2024, Mark J. Nelson, M.D. had 984 Medicare Part D claims for 68 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
What is Mark J. Nelson, M.D.'s MIPS final score?
The 2023 MIPS final score is 92 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.