Individual provider Active NPI

Stephen Wesley King, MD, PHD

  • Anesthesiology Physician
  • San Francisco, CA
National Provider Identifier
1700841004
Registry record updated Jun 1, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Anesthesiology PhysicianTaxonomy code 207L00000X
License
G66265 Issued in CA
Practice address
450 Sutter Street Suite 2222 MCPS
San Francisco, CA 94108
Phone
(415) 677-9937
NPI assigned
Apr 19, 2006
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Jun 1, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Anesthesiology Physician 207L00000X G66265 CA Primary

Addresses

Primary practice location

450 Sutter Street Suite 2222 MCPS
San Francisco, CA 94108

Mailing address

17 Allston Way
San Francisco, CA 94127
Phone (415) 298-9212

Other identifiers 1

IdentifierTypeStateIssuer
00G662650MedicaidCA

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Not listed in the public Medicare enrollment file

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine, Doctor of Philosophy

Practice roles

OrganizationSpecialtyStatusNew patients
Dino R. Elyassnia, MD. a Professional Organization Past Accepting new patients
University Anesthesia Medical Group Anesthesiology Past Accepting new patients
Center for the Surgical Arts Past Accepting new patients

Interoperability endpoints

  • FHIR API: https://api.platform.athenahealth.com/11878/brand/3/csg/1/fhir/r4

Organizations & group practices 3

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.

NPI Registry JSON

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

{
    "created_epoch": "1145404800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1780272000000",
    "number": "1700841004",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "17 ALLSTON WAY",
            "city": "SAN FRANCISCO",
            "state": "CA",
            "postal_code": "94127",
            "telephone_number": "415-298-9212"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "450 SUTTER STREET SUITE 2222 MCPS",
            "city": "SAN FRANCISCO",
            "state": "CA",
            "postal_code": "94108",
            "telephone_number": "415-677-9937"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "KING",
        "first_name": "STEPHEN",
        "middle_name": "WESLEY",
        "name_prefix": "Mr.",
        "credential": "MD, PHD",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2006-04-19",
        "last_updated": "2026-06-01",
        "certification_date": "2026-06-01",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207L00000X",
            "taxonomy_group": "",
            "desc": "Anesthesiology",
            "state": "CA",
            "license": "G66265",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "00G662650",
            "state": "CA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in San Francisco, CA

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 1, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
  • National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.