Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Psychiatry

Zachary Bosshardt, MD

Sees patients in Martinez, CA · California

Summary

Dr. Zachary Bosshardt, MD is a psychiatrist at 331 C St, Martinez, CA 94553. May accept Medicare assignment. NPI 1659900264. Source: CMS National Downloadable File, updated October 2, 2026.

  • Specialty: Psychiatrist (Medicare lists Psychiatry)
  • Address: 331 C St, Martinez, CA 94553 · Directions
  • Medicare: May accept Medicare assignment
  • Medical school: Emory University School Of Medicine · graduated 2024 (2 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Zachary Bosshardt, 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 Zachary Bosshardt accept Medicare assignment?
Medicare's clinician data says Zachary Bosshardt may accept Medicare assignment (as of October 2, 2026). Ask the office whether they accept it for your visit.
What is Zachary Bosshardt's NPI number?
1659900264. 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 Zachary Bosshardt is enrolled with Medicare (CMS data updated October 2, 2026).

  • 331 C StMartinez, CA 94553

Specialties

Find other Psychiatry doctors in California →

Other psychiatrists in Martinez

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

All psychiatrists in Martinez →

Clinician information

CredentialMD
Medical schoolEmory University School Of Medicine
Graduation year2024 (2 years since medical school)
Gender (as listed)Male
Medicare assignmentMay accept for some services
NPI (National Provider Identifier)1659900264
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