Joseph Mazzola, MD
NPI 1861134579 · Psychiatry Physician · San Francisco, CA
Enrolled with Medicare as Order and Referring Only - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Joseph Mazzola, MD is a Psychiatry Physician provider in San Francisco, CA (NPI 1861134579).
Provider details
- NPI number
- 1861134579
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 1861134579 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
4 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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
Registry dates
- Enumerated
- 2022-04-12
- Last updated
- 2025-07-23
- Certified
- 2025-07-23
Frequently asked questions
- What is Joseph Mazzola's NPI number?
- Joseph Mazzola's National Provider Identifier (NPI) is 1861134579, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joseph Mazzola's specialty?
- Joseph Mazzola is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Joseph Mazzola located?
- Joseph Mazzola's practice location on file with NPPES is 1975 4th St, San Francisco, CA 94143-2351.
- What is Joseph Mazzola's phone number?
- The practice phone number listed in the NPPES registry for Joseph Mazzola is (206) 543-6577.
- Does Joseph Mazzola accept Medicare?
- Joseph Mazzola is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Joseph Mazzola's NPI active?
- Yes — Joseph Mazzola's NPI (1861134579) is active in the NPPES registry as of the last update on 2025-07-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.