Individual provider Active NPI

Grant N. Colfax, MD

  • Internal Medicine Physician
  • San Francisco, CA
National Provider Identifier
1871610246
Registry record updated Jul 20, 2010
On this page

Key facts

NPPES NPI Registry
Primary specialty
Internal Medicine PhysicianTaxonomy code 207R00000X
License
G81197 Issued in CA
Practice address
995 Potrero Ave BLDG 90
SFGH Internal Medicine
San Francisco, CA 94110-2859
Phone
(415) 206-8317
Fax
(415) 206-5586
NPI assigned
Mar 23, 2007
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 20, 2010

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Internal Medicine Physician 207R00000X G81197 CA Primary
Infectious Disease Physician 207RI0200X G81197 CA

Addresses

Primary practice location

995 Potrero Ave BLDG 90
SFGH Internal Medicine
San Francisco, CA 94110-2859

Mailing address

25 Van Ness Ave
Suite 500
San Francisco, CA 94102-6033
Phone (415) 554-9173

Other identifiers 1

IdentifierTypeStateIssuer
039685OtherSFGH INTERNAL USE ONLY-COMMERCIAL NUMBER

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Not listed in the public Medicare enrollment file
Eligible to order & refer
  • Part B services: No
  • Medical equipment: Yes
  • Home health: No
  • Power mobility devices: Yes
  • Hospice: No
Green means eligible to order or refer.

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
G81197CAMDInternal Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
University of California SFGH Medical Group Current Accepting new patients
University of California SFGH Medical Group CurrentSince Jul 7, 2019 Accepting new patients
University of California SFGH Medical Group Internal Medicine CurrentSince Jul 7, 2019 Accepting new patients

Locations

995 Potrero Ave
Bldg 90
San Francisco, CA 94110
Phone (628) 206-4777

1001 Potrero Ave
San Francisco, CA 94110
Phone (415) 206-2305

1001 Potrero Ave
Bldg 20
San Francisco, CA 94110
Phone (415) 206-8524

1001 Potrero Ave
Rm 5H22
San Francisco, CA 94110
Phone (628) 206-4774

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": "1174608000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1279584000000",
    "number": "1871610246",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "25 VAN NESS AVE",
            "address_2": "SUITE 500",
            "city": "SAN FRANCISCO",
            "state": "CA",
            "postal_code": "941026033",
            "telephone_number": "415-554-9173",
            "fax_number": "415-431-7154"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "995 POTRERO AVE BLDG 90",
            "address_2": "SFGH INTERNAL MEDICINE",
            "city": "SAN FRANCISCO",
            "state": "CA",
            "postal_code": "941102859",
            "telephone_number": "415-206-8317",
            "fax_number": "415-206-5586"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "COLFAX",
        "first_name": "GRANT",
        "middle_name": "N.",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2007-03-23",
        "last_updated": "2010-07-20",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "CA",
            "license": "G81197",
            "primary": true
        },
        {
            "code": "207RI0200X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Infectious Disease",
            "state": "CA",
            "license": "G81197",
            "primary": false
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "SFGH INTERNAL USE ONLY-COMMERCIAL NUMBER",
            "identifier": "039685",
            "state": null
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in San Francisco, CA

Sources for this page

Verify at the official NPI Registry.