NPIMap

Individual provider Active NPI

George Kimmerling, M.D.

  • Specialist
  • San Francisco, CA
National Provider Identifier
1346313269
Registry record updated Aug 13, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
SpecialistTaxonomy code 174400000X
License
G254210 Issued in CA
Practice address
2100 Webster St Ste 409
San Francisco, CA 94115-2380
Phone
(415) 658-7876
Fax
(415) 658-7962
NPI assigned
Nov 16, 2006
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Aug 13, 2025

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Endocrinology, Diabetes & Metabolism PhysicianGroup: 193400000X SINGLE SPECIALTY GROUP 207RE0101X G25421 CA
Specialist 174400000X G254210 CA Primary

Addresses

Primary practice location

2100 Webster St Ste 409
San Francisco, CA 94115-2380

Mailing address

1282 26TH Ave
San Francisco, CA 94122-1505
Phone (415) 681-1613

Other identifiers 1

IdentifierTypeStateIssuer
00G254210MedicaidCA

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CA
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20090122000521 CA Practitioner - Internal MedicinePractitioner - Endocrinology 3678637477 Practice locations: San Francisco, CA

Care Compare profile

Medicare Care Compare
Specialty
Internal MedicineAlso: Endocrinology
Education
Other, 1970
Medicare assignment
Accepts the Medicare-approved amount as payment in full

Practice addresses (Care Compare)

2100 Webster St
Suite 200
San Francisco, CA 94115-2375
Phone (415) 658-7876

Hospital & facility affiliations

  • Sutter Care at Home Home health agency, San Francisco, CA, CCN 057003
  • California Pacific Medical Center- Van Ness Campus Hospital, San Francisco, CA, CCN 050047
  • UCSF Health St. Mary'S Hospital Hospital, San Francisco, CA, CCN 050457
  • California Pacific Medical Ctr-Davies Campus Hosp Hospital, San Francisco, CA, CCN 050008
  • California Pacific Medical Center - Mission Bernal Hospital, San Francisco, CA, CCN 050055
  • Novato Community Hospital Hospital, Novato, CA, CCN 050131

Merit-based Incentive Payment System (MIPS)

Final score
84.54 of 100Reported as individual
Quality
77.71
Promoting interoperability
100
Improvement activities
40
Cost
70.74

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
G254210CAMDSpecialist
00000000000CAMDInternal Medicine Physician
G25421CAMDEndocrinology, Diabetes & Metabolism Physician

Practice roles

OrganizationSpecialtyStatusNew patients
California Pacific Medical Group, Inc. PastSince Aug 17, 2025 Accepting new patients
Sutter Bay Medical Foundation Single Specialty PastSince Aug 17, 2025 Accepting new patients

Networks

  • BSC 65 PLUS INDIVIDUAL MAPD

Organizations & group practices 2

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.

Hospital & facility affiliations 6

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

NPI Registry JSON

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

{
    "created_epoch": "1163635200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1755043200000",
    "number": "1346313269",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1282 26TH AVE",
            "city": "SAN FRANCISCO",
            "state": "CA",
            "postal_code": "941221505",
            "telephone_number": "415-681-1613"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2100 WEBSTER ST STE 409",
            "city": "SAN FRANCISCO",
            "state": "CA",
            "postal_code": "941152380",
            "telephone_number": "415-658-7876",
            "fax_number": "415-658-7962"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "KIMMERLING",
        "first_name": "GEORGE",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2006-11-16",
        "last_updated": "2025-08-13",
        "certification_date": "2025-08-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RE0101X",
            "taxonomy_group": "193400000X SINGLE SPECIALTY  GROUP",
            "desc": "Internal Medicine, Endocrinology, Diabetes & Metabolism",
            "state": "CA",
            "license": "G25421",
            "primary": false
        },
        {
            "code": "174400000X",
            "taxonomy_group": "",
            "desc": "Specialist",
            "state": "CA",
            "license": "G254210",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "00G254210",
            "state": "CA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in San Francisco, CA

Sources for this page

Verify at the official NPI Registry.