John David Szumowski, M.D., M.P.H.

Primary specialty

Infectious Disease PhysicianTaxonomy code 207RI0200X

License

128301 Issued in CA

Practice address

4150 Clement St
San Francisco, CA 94121-1563

Phone

(415) 221-4810

Fax

(415) 750-6951

NPI assigned

May 9, 2008

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

Infectious DiseaseAlso: Internal Medicine

Education

Harvard Medical School, 2007

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

City and County of San FranciscoGroup PAC ID 1658280748, 368 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Zuckerberg San Francisco General Hosp & Trauma Ctr Hospital, San Francisco, CA, CCN 050228

Merit-based Incentive Payment System (MIPS)

Final score

88.2 of 100Reported as group

Quality

61.12

Promoting interoperability

99

Improvement activities

40

Cost

83.72

Merit-based Incentive Payment System (MIPS)

Final score

97.28 of 100Reported as group

Quality

89.92

Promoting interoperability

100

Improvement activities

40

Cost

78.23

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

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.

• City & County of San Francisco

  dba San Francisco Public Health Laboratory

  • Clinical Medical Laboratory
  • San Francisco, CA
  • NPI 1982737524
  Medicare reassignment Care Compare group NPD
• County of Santa Clara

  dba SCVMC Physician Services

  • Anesthesiology Physician
  • San Jose, CA
  • NPI 1588721500

  Internal Medicine

  Medicare reassignment NPD
• County of Santa Clara

  dba Josefina Narvaez Mental Health Center MH Aoa

  • Mental Health Clinic/Center (Including Community Mental Health Center)
  • San Jose, CA
  • NPI 1699885079
  Medicare reassignment NPD
• University of California SFGH Medical Group

  dba UCSF SFGH Medical Group Dept of Otolaryngology

  • Otolaryngology Physician
  • San Francisco, CA
  • NPI 1154396208
  Medicare reassignment NPD
• University of California SFGH Medical Group

  dba UCSF SFGH Medical Group Dept of Hematology

  • Hematology (Internal Medicine) Physician
  • San Francisco, CA
  • NPI 1326013442
  Medicare reassignment NPD
• University of California SFGH Medical Group

  dba UCSF SFGH Medical Group Dept of Infectious Disease

  • Infectious Disease Physician
  • San Francisco, CA
  • NPI 1366417933
  Medicare reassignment NPD
• City & County of San Francisco

  dba CCSF DPH Multi - Practice Medical Group

  • Community Health/Public Health Clinical Nurse Specialist
  • San Francisco, CA
  • NPI 1609041060
  NPD
• City and County of San Francisco

  dba DSAAM OTOP Methadone Maintenance

  • Methadone Clinic
  • San Francisco, CA
  • NPI 1578787925
  NPD
• County of Santa Clara

  dba Valley Health Center Lundy

  • Federally Qualified Health Center (FQHC)
  • San Jose, CA
  • NPI 1043354020
  NPD
• County of Santa Clara

  dba SCVMC Outpatient Pharmacy

  • Pharmacy
  • San Jose, CA
  • NPI 1891871919
  NPD
• University of California SFGH Medical Group

  dba UCSF SFGH Medical Group Division of Vascular Surgery

  • Vascular Surgery Physician
  • San Francisco, CA
  • NPI 1033913959
  NPD
• University of California SFGH Medical Group

  dba UCSF SFGH Medical Group Dept of Medical Oncology

  • Medical Oncology Physician
  • San Francisco, CA
  • NPI 1386619419
  NPD

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

• City & County of San Francisco

  dba Zuckerberg San Francisco General Hospital and Trauma Center- Acute

  • General Acute Care Hospital
  • San Francisco, CA
  • NPI 1083648810
  Care Compare affiliation
• City & County of San Francisco

  dba Zuckerberg San Francisco General Hospital and Trauma Center - Acute

  • General Acute Care Hospital
  • San Francisco, CA
  • NPI 1164609962
  Care Compare affiliation

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

{
    "created_epoch": "1210291200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1754956800000",
    "number": "1750558615",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4150 CLEMENT ST",
            "city": "SAN FRANCISCO",
            "state": "CA",
            "postal_code": "941211563",
            "telephone_number": "415-221-4810",
            "fax_number": "415-750-6951"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4150 CLEMENT ST",
            "city": "SAN FRANCISCO",
            "state": "CA",
            "postal_code": "941211563",
            "telephone_number": "415-221-4810",
            "fax_number": "415-750-6951"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "SZUMOWSKI",
        "first_name": "JOHN",
        "middle_name": "DAVID",
        "name_prefix": "Dr.",
        "credential": "M.D., M.P.H.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2008-05-09",
        "last_updated": "2025-08-12",
        "certification_date": "2025-08-12",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "CA",
            "license": "128301",
            "primary": false
        },
        {
            "code": "207RI0200X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Infectious Disease",
            "state": "CA",
            "license": "128301",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "1750558615",
            "state": "WA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Veda Rhea Szeto, O.D.
• Renisha Angelica Szewczyk
• Joe Szlamnik, MA, CADC-II
• Michael Andrew Szotak, P.T.
• Sonia Sztejnklaper, LCSW
• Julie Szymaniak, M.D.
• Kathryn Alexandra Szymanski, M.D.
• Marisol Szymanski, AUD, CCC-A, FAAA
• Sara Jean Szymczak, DNP, APRN, PMHNP-BC
• Brian Qui Vinh Ta

• Infectious Disease Physician in San Francisco, CA
• Providers in San Francisco, CA by specialty
• Infectious Disease Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 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.
• 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.