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DR. MARISSA MAY ZAJAC D.O.
NPI 1710367446
Neuromusculoskeletal Medicine & OMM in Fort Worth, TX

Active since June 08, 2015PECOS EnrolledAccepts Medicare Assignment
5521 BELLAIRE DR S STE 114B, FORT WORTH, TX 76109(817) 926-9642(817) 926-1865 Get Directions Write a Review

NPPES record last updated: March 21, 2019. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Dr. Marissa May Zajac D.o. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. MARISSA MAY ZAJAC D.O. (NPI 1710367446) is an individual neuromusculoskeletal medicine & omm provider in Fort Worth, Texas, licensed in Texas (R9898) and active in the NPI registry since June 2015. She is enrolled in Medicare PECOS and is a graduate of University Of North Texas Hsc, College Of Osteopathic Med (2015).

NPPES Registry Identity

NPI1710367446
Entity TypeIndividualFemale
Primary Taxonomy204D00000X
Provider Legal NameDR. MARISSA MAY ZAJACCredential: D.O.
Location Address5521 BELLAIRE DR S STE 114BFort Worth, TX 76109-5855
Mailing Address5521 Bellaire Dr S Ste 114bFort Worth, TX 76109-5855 · (817) 926-9642 · Fax (817) 926-1865
Phone(817) 926-9642
Fax(817) 926-1865
Sole ProprietorNo
Medical School CMSUniversity Of North Texas Hsc, College Of Osteopathic MedGraduated 2015
Enumeration DateJune 8, 2015
Last NPPES UpdateMarch 21, 2019
✔ NPI 1710367446 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNeuromusculoskeletal Medicine & OMMAllopathic & Osteopathic Physicians
Taxonomy Code204D00000X
Licenses✔ Licensed in TX · R9898✔ Licensed in WV · ED
Definition
The Neuromusculoskeletal Medicine and Osteopathic Manipulative Medicine physician directs special attention to the neuromusculoskeletal system and its interaction with other body systems. Neuromusculoskeletal Medicine and Osteopathic Manipulative Medicine encompasses increased knowledge and understanding of osteopathic principles and practice and heightened technical skills of osteopathic manipulative medicine, and integrates each of these into the management of pediatric, adolescent, adult, and geriatric patients.
5521 BELLAIRE DR S STE 114B, Fort Worth, TX 76109
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Texas, Cigna Healthcare, Cigna HealthCare of Florida, Inc. and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Marissa May Zajac D.o. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID8022441302
PECOS Enrollment IDI20191126002548, I20251002004774
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

3

Medicare enrollment records show Marissa Zajac reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Tmc Provider Group PLLC
147 mi
Urgent Care
4851 N IH 35
Round Rock, TX 78664
  • Reassigned Medicare billing, Texas enrollment
  • 223 clinicians in this Medicare group
NPI 1376908178 (512) 486-6140
University Of Texas Health Science Center At San Antonio
217 mi
Diagnostic Radiology
25753 OLD FREDERICKSBURG
Boerne, TX 78015
  • Reassigned Medicare billing, Texas enrollment
  • 2,397 clinicians in this Medicare group
NPI 1417921834 (210) 450-9000
Ballout International PLLC
1,074 mi
Internal Medicine
1931 19TH PL
Vero Beach, FL 32960
  • Reassigned Medicare billing, Florida enrollment
  • 53 clinicians in this Medicare group
NPI 1629554225 (321) 387-9451

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

THE WELLNESS CENTER HEALTH AND THERAPY LLC
Family Medicine
5521 BELLAIRE DR S STE 114B
FT WORTH, TX 76109
Tarrant County (817) 926-9642

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Marissa Zajac's NPI number?

The NPI number for Marissa Zajac is 1710367446. It was assigned to this individual provider in the NPPES registry on June 8, 2015.

Where is Marissa Zajac located?

Marissa Zajac practices at 5521 Bellaire Dr S Ste 114B, Fort Worth, TX 76109. The listed phone number is (817) 926-9642.

What is Marissa Zajac's specialty?

The primary specialty registered for this NPI is Neuromusculoskeletal Medicine & OMM with taxonomy code 204D00000X.

Is Marissa Zajac enrolled in Medicare?

Yes. Marissa Zajac is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Marissa Zajac's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Marissa Zajac reassigns Medicare benefits to 3 organizations: Tmc Provider Group PLLC (Round Rock, TX), University Of Texas Health Science Center At San Antonio (Boerne, TX) and Ballout International PLLC (Vero Beach, FL). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Marissa Zajac's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Marissa Zajac accept?

Health plans from Blue Cross and Blue Shield of Texas, Cigna HealthCare of Florida, Inc., Cigna Healthcare and Community First list Marissa Zajac as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Marissa Zajac was last updated on March 21, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.