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Physical Therapist in Private Practice

Ariana Mirshahi, PT

Sees patients in Mill Valley, CA · California

Summary

Ariana Mirshahi, PT is a physical therapist at 421 Miller Ave, Mill Valley, CA 94941. Phone: (415) 388-8166. Accepts Medicare assignment. NPI 1538946454. Source: CMS National Downloadable File, updated October 2, 2026.

  • Specialty: Physical therapist (Medicare lists Physical Therapist in Private Practice)
  • Address: 421 Miller Ave, Mill Valley, CA 94941 · Directions
  • Phone: (415) 388‑8166
  • Medicare: Accepts Medicare assignment
  • Group practice: Active Marin Physical Therapy Inc
  • School: Marymount University · graduated 2023
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Ariana Mirshahi, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Ariana Mirshahi accept Medicare assignment?
Yes. Medicare's clinician data says Ariana Mirshahi accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
What is Ariana Mirshahi's NPI number?
1538946454. 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 Ariana Mirshahi is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Ariana Mirshahi as a member of this group (CMS data updated October 2, 2026).

  • Active Marin Physical Therapy Inc12 clinicians in the group

Specialties

Find other clinicians: Physical Therapist in Private Practice, California →

Other physical therapists in Mill Valley

Clinicians with the same Medicare primary specialty in Mill Valley, CA — not a recommendation.

All physical therapists in Mill Valley →

Other clinicians in Active Marin Physical Therapy Inc

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialPT
SchoolMarymount University
Graduation year2023
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1538946454
CorrectionsReport 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

  1. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  2. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  3. Medicare Care Compare — official Medicare tool to look up clinicians