Zachary Bosshardt, MD
NPI 1659900264 · Psychiatry Physician · Martinez, CA
Enrolled with Medicare as Order and Referring Only - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Zachary Bosshardt, MD is a Psychiatry Physician provider in Martinez, CA (NPI 1659900264).
Provider details
- NPI number
- 1659900264
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 202623 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
6 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Additional practice locations (1)
- 1364 Clifton Rd NeAtlanta, GA 30322-1059Phone: (404) 712-2000
Registry dates
- Enumerated
- 2020-04-06
- Last updated
- 2025-07-30
- Certified
- 2025-07-30
Frequently asked questions
- What is Zachary Bosshardt's NPI number?
- Zachary Bosshardt's National Provider Identifier (NPI) is 1659900264, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Zachary Bosshardt's specialty?
- Zachary Bosshardt is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Zachary Bosshardt located?
- Zachary Bosshardt's practice location on file with NPPES is 2500 Alhambra Ave, Martinez, CA 94553-3156.
- What is Zachary Bosshardt's phone number?
- The practice phone number listed in the NPPES registry for Zachary Bosshardt is (925) 370-5000.
- Does Zachary Bosshardt accept Medicare?
- Zachary Bosshardt is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Zachary Bosshardt's NPI active?
- Yes — Zachary Bosshardt's NPI (1659900264) is active in the NPPES registry as of the last update on 2025-07-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.