Timothy Bauer Duncan, MD

Primary specialty

Emergency Medicine PhysicianTaxonomy code 207P00000X

License

G87083 Issued in CA

Practice address

2333 Buchanan St
San Francisco, CA 94115-1925

Phone

(209) 342-2300

Fax

(209) 524-4240

NPI assigned

Nov 4, 2005

Sex

Male

Sole proprietor

No

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

Specialties & licenses 1

Addresses

Other identifiers 2

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

Emergency Medicine

Education

Geisel School of Medicine at Dartmouth, 1994

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

San Francisco Emergency Medical AssociatesGroup PAC ID 5698662518, 74 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• California Pacific Medical Center- Van Ness Campus Hospital, San Francisco, CA, CCN 050047
• California Pacific Medical Ctr-Davies Campus Hosp Hospital, San Francisco, CA, CCN 050008

Merit-based Incentive Payment System (MIPS)

Final score

97.16 of 100Reported as group

Quality

91.91

Improvement activities

40

Cost

79.27

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: tduncan97584@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.

• San Francisco Emergency Medical Associates

  • Emergency Medicine Physician
  • San Francisco, CA
  • NPI 1134110661
  Medicare reassignment Care Compare group NPD
• Mt. Rainier Emergency Physicians, PLLC

  • Emergency Medicine Physician
  • Puyallup, WA
  • NPI 1538104476
  NPD (past)

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

• Sutter Bay Hospitals

  • General Acute Care Hospital
  • San Francisco, CA
  • NPI 1659439834
  Care Compare affiliation
• Sutter Bay Hospitals

  • General Acute Care Hospital
  • San Francisco, CA
  • NPI 1740348929
  Care Compare affiliation

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

{
    "created_epoch": "1131062400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1013908227",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4301 NORTHSTAR WAY",
            "city": "MODESTO",
            "state": "CA",
            "postal_code": "953569262",
            "telephone_number": "209-342-2300",
            "fax_number": "209-524-4240"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2333 BUCHANAN ST",
            "city": "SAN FRANCISCO",
            "state": "CA",
            "postal_code": "941151925",
            "telephone_number": "209-342-2300",
            "fax_number": "209-524-4240"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "DUNCAN",
        "first_name": "TIMOTHY",
        "middle_name": "BAUER",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-11-04",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "CA",
            "license": "G87083",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "00G870830",
            "state": "CA"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "BLUE SHIELD",
            "identifier": "00G870830",
            "state": "CA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Kimberly Anne Duncan, M.S., CCC-SLP
• Linda Kay Duncan
• Marisa Isabel Duncan, NP
• Michael Shayne Duncan, PHYSICAL THERAPIST
• Thomas E Duncan
• Megan Elizabeth Dunchak, L.C.S.W.
• Danielle Renee Dunchok, PSY.D
• Richard Paul Dunckel, B.A.
• Bonnie Dundee, OTR/L
• Dune Medical Group PC

• Emergency Medicine Physician in San Francisco, CA
• Providers in San Francisco, CA by specialty
• Emergency Medicine Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 2026; 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.