Max Blumberg, MD
NPI 1326507385 · Preventive Medicine/Occupational Environmental Medicine Physician · San Francisco, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Max Blumberg, MD is a Preventive Medicine/Occupational Environmental Medicine Physician provider in San Francisco, CA (NPI 1326507385).
Provider details
- NPI number
- 1326507385
- Entity type
- Individual
- Primary specialty
- Preventive Medicine/Occupational Environmental Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A180291 (CA)
Specialties & taxonomies
- Preventive Medicine/Occupational Environmental Medicine PhysicianPrimary2083P0500XLicense A180291 (CA)
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
7 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
- 2019-03-18
- Last updated
- 2025-12-12
- Certified
- 2025-12-12
Frequently asked questions
- What is Max Blumberg's NPI number?
- Max Blumberg's National Provider Identifier (NPI) is 1326507385, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Max Blumberg's specialty?
- Max Blumberg is listed in the NPPES registry with a primary specialty of Preventive Medicine/Occupational Environmental Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Max Blumberg located?
- Max Blumberg's practice location on file with NPPES is 2330 Post St Ste 460, San Francisco, CA 94115-3466.
- What is Max Blumberg's phone number?
- The practice phone number listed in the NPPES registry for Max Blumberg is (415) 885-7580.
- Does Max Blumberg accept Medicare?
- Max Blumberg is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Max Blumberg's NPI active?
- Yes — Max Blumberg's NPI (1326507385) is active in the NPPES registry as of the last update on 2025-12-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.