Max Jacob Blumberg, MD

Primary specialty

Preventive Medicine/Occupational Environmental Medicine PhysicianTaxonomy code 2083P0500X

License

A180291 Issued in CA

Practice address

2330 Post St Ste 460
San Francisco, CA 94115-3466

Phone

(415) 885-7580

Fax

(415) 514-5614

NPI assigned

Mar 18, 2019

Sex

Male

Sole proprietor

No

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 2

Addresses

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Eligible to order & refer

• Part B services: No
• Medical equipment: Yes
• Home health: No
• Power mobility devices: Yes
• Hospice: No

Green means eligible to order or refer.

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: mblumberg242687@direct-ucsfmedicalcenter.org

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

• Regents of the University of California

  • Internal Medicine Physician
  • San Francisco, CA
  • NPI 1760552343
  NPD
• UCSF Medical Group Business Services

  • Health Service Clinic/Center
  • San Francisco, CA
  • NPI 1194115246
  NPD
• UCSF Medical Group Business Services

  • Internal Medicine Physician
  • San Francisco, CA
  • NPI 1477624104
  NPD
• University of California San Francisco

  • Community/Retail Pharmacy
  • San Francisco, CA
  • NPI 1659141711
  NPD
• University of California San Francisco

  • Pediatrics Physician
  • San Francisco, CA
  • NPI 1861578973
  NPD
• Regents of the University of California

  • Rheumatology Physician
  • San Francisco, CA
  • NPI 1881763597
  NPD (past)
• University of California San Francisco Medical Center

  • General Acute Care Hospital
  • San Francisco, CA
  • NPI 1144325440
  NPD (past)

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1552867200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1765497600000",
    "number": "1326507385",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2330 POST ST STE 460",
            "city": "SAN FRANCISCO",
            "state": "CA",
            "postal_code": "941153466",
            "telephone_number": "415-885-7580",
            "fax_number": "415-514-5614"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2330 POST ST STE 460",
            "city": "SAN FRANCISCO",
            "state": "CA",
            "postal_code": "941153466",
            "telephone_number": "415-885-7580",
            "fax_number": "415-514-5614"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "BLUMBERG",
        "first_name": "MAX",
        "middle_name": "JACOB",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2019-03-18",
        "last_updated": "2025-12-12",
        "certification_date": "2025-12-12",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2083X0100X",
            "taxonomy_group": "",
            "desc": "Preventive Medicine, Occupational Medicine",
            "state": "CA",
            "license": "A180291",
            "primary": false
        },
        {
            "code": "2083P0500X",
            "taxonomy_group": "",
            "desc": "Preventive Medicine, Preventive Medicine/Occupational Environmental Medicine",
            "state": "CA",
            "license": "A180291",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Gia Blum
• Linda Sara Blum, GNP
• Michael S Blum, MD
• Dean Blumberg, PHD, LMFT
• Kristofer Blumberg, RN
• Seth Blumberg, MD PHD
• Rochelle Blumenfeld, O.D.
• Dixie Blumenshine, MD
• Elizabeth Ann Blumenthal, MD
• Lauren Blumer

• Preventive Medicine/Occupational Environmental Medicine Physician in San Francisco, CA
• Providers in San Francisco, CA by specialty
• Preventive Medicine/Occupational Environmental Medicine Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Dec 12, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.