Joseph G Mallon, MD

Primary specialty

Hospitalist PhysicianTaxonomy code 208M00000X

License

A97574 Issued in CA

Practice address

900 Hyde St
San Francisco, CA 94109-4806

Phone

(415) 353-6817

NPI assigned

Sep 6, 2007

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

Other identifiers 1

Medicare fee-for-service enrollment

Enrolled in CA

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: Yes

Green means eligible to order or refer.

Enrollment records 1

Specialty

HospitalistAlso: Internal Medicine

Education

Other, 2001

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Vituity Hospitalists PCGroup PAC ID 2567714090, 78 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Sutter Care at Home Hospice, San Mateo, CA, CCN 051752
• UCSF Health Saint Francis Hospital Hospital, San Francisco, CA, CCN 050152
• UCSF Medical Center Hospital, San Francisco, CA, CCN 050454

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: jmallon183440@hisp.ehr.sutterhealth.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.

• Vituity Hospitalists PC

  • Hospitalist Physician
  • Redding, CA
  • NPI 1730666108

  Internal Medicine

  Medicare reassignment Care Compare group NPD
• Farallon Inpatient Medical Group Inc

  • Emergency Medicine Physician
  • Lakeport, CA
  • NPI 1417441080
  Medicare reassignment NPD
• Galen Inpatient Physicians, PC

  • Hospitalist Physician
  • Manteca, CA
  • NPI 1689320459
  Medicare reassignment NPD
• Pacific Inpatient Medical Group

  • Internal Medicine Physician
  • San Francisco, CA
  • NPI 1447447248
  Medicare reassignment NPD
• Pacific Redwood Medical Group Inc

  • Emergency Medicine Physician
  • Ukiah, CA
  • NPI 1033103676

  Internal Medicine

  Medicare reassignment NPD
• San Francisco Unified Physicians Group, Inc.

  • Hospitalist Physician
  • San Francisco, CA
  • NPI 1982104162
  Medicare reassignment
• Galen Inpatient Physicians Inc

  • Internal Medicine Physician
  • San Francisco, CA
  • NPI 1215391594
  NPD
• Galen Inpatient Physicians PC

  • Hospitalist Physician
  • Los Angeles, CA
  • NPI 1205787686
  NPD
• Vituity Hospitalists PC

  • Hospitalist Physician
  • San Luis Obispo, CA
  • NPI 1104551639

  Internal Medicine

  NPD
• Vituity Hospitalists PC

  • Hospitalist Physician
  • San Francisco, CA
  • NPI 1659858025

  Internal Medicine

  NPD
• Cep America - California

  • Emergency Medicine Physician
  • Redding, CA
  • NPI 1376604686
  NPD (past)
• Cogent Healthcare of California, PC

  • Internal Medicine Physician
  • San Francisco, CA
  • NPI 1215956438
  NPD (past)

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

• Sutter Visiting Nurse Association and Hospice

  • Community Based Hospice Care Agency
  • San Mateo, CA
  • NPI 1912931809
  Care Compare affiliation
• UCSF Health Community Hospitals

  • General Acute Care Hospital
  • San Francisco, CA
  • NPI 1316061997
  Care Compare affiliation
• University of California, San Francisco

  • General Acute Care Hospital
  • San Francisco, CA
  • NPI 1689772592
  Care Compare affiliation

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

{
    "created_epoch": "1189036800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1765152000000",
    "number": "1407041197",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 470054",
            "city": "SAN FRANCISCO",
            "state": "CA",
            "postal_code": "941470054",
            "telephone_number": "888-962-7550",
            "fax_number": "818-408-4972"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "900 HYDE ST",
            "city": "SAN FRANCISCO",
            "state": "CA",
            "postal_code": "941094806",
            "telephone_number": "415-353-6817"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MALLON",
        "first_name": "JOSEPH",
        "middle_name": "G",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2007-09-06",
        "last_updated": "2025-12-08",
        "certification_date": "2025-12-08",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "CA",
            "license": "A97574",
            "primary": false
        },
        {
            "code": "208M00000X",
            "taxonomy_group": "",
            "desc": "Hospitalist",
            "state": "CA",
            "license": "A97574",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "MEDICAL LICENSE",
            "identifier": "A97574",
            "state": "CA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Michael C Mallatt, PAC
• Shreya Malli, O.D.
• Jaya Reddy Mallidi, MD
• Natasha Mallie, NP
• Dennis Mallillin, MS, MFTI
• Anna Mallory
• Anna Walsh Mallory, MA, BCBA
• Monae L Mallory
• Orreaon Jeanne Mallory
• Mary J. Malloy, M.D.

• Hospitalist Physician in San Francisco, CA
• Providers in San Francisco, CA by specialty
• Hospitalist Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Dec 8, 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.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.