Quick answers
- Where does Marissa E. Johnson see patients?
- Medicare's clinician data lists 6 practice locations, including Austin, TX, Canton, OH and Bellaire, TX. Call before your visit to confirm the address.
- What is Marissa E. Johnson's specialty?
- Medicare lists Physician Assistant as the primary specialty.
- Does Marissa E. Johnson accept Medicare assignment?
- Yes. Medicare's clinician data says Marissa E. Johnson accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is Marissa E. Johnson's NPI number?
- 1629474028. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Marissa E. Johnson is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 6; the Medicare profile lists all.
Specialties
- Physician Assistantprimary
Other physician assistants in Austin
Clinicians with the same Medicare primary specialty in Austin, TX — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 2014 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1629474028 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians