NPPES file of Aug 9, 2026

Marissa May Zajac, D.O.

Neuromusculoskeletal Medicine & OMM Physician · Fort Worth, TX

Marissa May Zajac, D.O. is a neuromusculoskeletal medicine & omm physician with a practice address in Fort Worth, Texas, and NPI 1710367446, issued on Jun 8, 2015. Check the license (Texas R9898, as entered in NPPES) with the Texas board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1710367446
Name
Marissa May Zajac
Credential
D.O.
Primary taxonomy
Neuromusculoskeletal Medicine & OMM Physician 204D00000X
License numbers
R9898 TX
ED WV
Self-reported in NPPES; status is on the state search
Practice location
5521 Bellaire Dr S Ste 114B, Fort Worth, TX 76109
Phone
(817) 926-9642
Enumerated
Jun 8, 2015
Record last updated
Mar 21, 2019 (not updated in 7 years: call before relying on the address or phone)
Fax
(817) 926-1865
Medicare enrollment
Enrolled (PECOS I20191126002548); accepts Medicare assignment
Medical or professional school
University Of North Texas Hsc, College Of Osteopathic Med, 2015
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
Download card Updates feed

Verify Marissa May Zajac in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Texas board licenses this profession
    Search for license R9898
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Texas license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Is this page about you? You can ask us to correct, restrict or remove it: how.

98% fewer Medicare Part D claims than the average neuromusculoskeletal medicine & omm physician in 2024

14 Medicare Part D claims, against an average of 604 among the 400 providers of this specialty who prescribed in Part D.

  1. Marissa Zajac14
  2. Specialty average604

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.

Industry payments in 2024: $124.98

1 payment: food and beverage; the largest payer was Supernus Pharmaceuticals, Inc. The 201 providers of this specialty with any payment received $1,034.56 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Marissa Zajac$124.98
  2. Specialty average$1,034.56

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through 3 group practices

  1. Ballout International LLCVero Beach, FL
  2. Tmc Provider Group PLLCSan Antonio, TX
  3. University OF Texas Health Science Center AT San AntonioSan Antonio, TX

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Marissa May Zajac among 39 neuromusculoskeletal medicine & omm physician records in Texas

Marissa May Zajac, D.O. is one of 39 neuromusculoskeletal medicine & omm physician records with a practice address in Texas. 59% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 82% of them.

  • NPI issued2015 · 82% of these records are older, 15% newer
  • In a Medicare fileYes · 59% of these records are
  • In the CMS Doctors and Clinicians fileYes · 49% of these records are
  • Graduated2015 · median 2000 among the 19 with a school on file
  • Record last updated2019 · 56% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 204D00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Neuromusculoskeletal Medicine & OMM Physician providers in Texas

There are 39 neuromusculoskeletal medicine & omm physician records in Texas.

The 8 neuromusculoskeletal medicine & omm physician records with the nearest ZIP codes

  1. Aaron Boone, D.O.Fort Worth, TX 761071225469026
  2. Jerry Dickey, DOFort Worth, TX 761071245203488
  3. Russell Gamber, DOFort Worth, TX 761071700859154
  4. Kendi Hensel, DOFort Worth, TX 761071023080769
  5. John Licciardone, D.O.Fort Worth, TX 761071407829641
  6. Ian Matthews, D.O.Fort Worth, TX 761071962844779
  7. Christopher Medina, D.O.Fort Worth, TX 761071386904225
  8. Meaghan Nelsen, D.O.Fort Worth, TX 761071144573148

Common questions

What is Marissa May Zajac, D.O.'s NPI number?

Marissa May Zajac, D.O.'s National Provider Identifier (NPI) is 1710367446, issued on Jun 8, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Marissa May Zajac, D.O. located?

The NPPES record lists a practice address at 5521 Bellaire Dr S Ste 114B, Fort Worth, TX, 76109. Phone: (817) 926-9642. Providers update this record themselves, so call before visiting.

How can I verify Marissa May Zajac, D.O.'s license?

NPPES lists Texas license number R9898, as entered by the provider. Search the Texas board that licenses this profession; the NPPES record confirms identity only.

How much does Marissa May Zajac, D.O. prescribe under Medicare Part D?

In 2024, Marissa May Zajac, D.O. had 14 Medicare Part D claims; the average among neuromusculoskeletal medicine & omm physician prescribers was 604. Part D covers Medicare prescriptions only.

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.