William Ira Coltrin, MD

Primary specialty

Emergency Medicine PhysicianTaxonomy code 207P00000X

License

A90284 Issued in CA

Practice address

2333 Buchanan St
San Francisco, CA 94120

Phone

(209) 342-2300

Fax

(209) 524-4240

NPI assigned

Jan 18, 2006

Last updated

Jul 13, 2026By the provider in NPPES

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

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

Merit-based Incentive Payment System (MIPS)

Final score

99.17 of 100Reported as group

Quality

87.26

Improvement activities

40

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, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

• Cep America - California

  dba Vituity

  • Emergency Medicine Physician
  • San Francisco, CA
  • NPI 1023063542
  Medicare reassignment NPD
• Temecula Valley Emergency Medical Associates

  • Specialist
  • Murrieta, CA
  • NPI 1407845092
  Medicare reassignment NPD
• Cep America-California

  • Emergency Medicine Physician
  • Crescent City, CA
  • NPI 1366124364
  NPD
• Hermanson Medical Group a Professional Corporation

  • Emergency Medicine Physician
  • King City, CA
  • NPI 1912936766
  NPD (past)
• San Francisco Emergency Medical Associates

  • Emergency Medicine Physician
  • San Francisco, CA
  • NPI 1134110661
  NPD (past)

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

{
    "created_epoch": "1137542400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1700866613",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4301 NORTH STAR 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": "94120",
            "telephone_number": "209-342-2300",
            "fax_number": "209-524-4240"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "COLTRIN",
        "first_name": "WILLIAM",
        "middle_name": "IRA",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-01-18",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "CA",
            "license": "A90284",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Melanie A Colon
• Sheila Damaris Colon, PHARMD
• Eugene Santino Rocillo Colorina
• Annalee Colteaux
• Shasta Nicole Coltharp
• Sarah E Colvario, MFTI
• James M. Colville Jr., MD
• Annelise Alexandra Colvin, MD
• Francene G Colvin, PH.D
• Lucy J Colvin, MFT

• 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.