NPIMap

Individual provider Active NPI

Mary Omalley Gray, MD

  • Cardiovascular Disease Physician
  • San Francisco, CA
National Provider Identifier
1124062013
Registry record updated Jul 13, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Cardiovascular Disease PhysicianTaxonomy code 207RC0000X
License
G64546 Issued in CA
Practice address
1001 Potrero Avenue
RM 5G1
San Francisco, CA 94110-3518
Phone
(415) 206-3503
Fax
(415) 206-5100
NPI assigned
Jun 15, 2006
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 13, 2026

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 G64546 CA
Cardiovascular Disease Physician 207RC0000X G64546 CA Primary

Addresses

Primary practice location

1001 Potrero Avenue
RM 5G1
San Francisco, CA 94110-3518

Mailing address

PO Box 7464
San Francisco, CA 94120-7464
Phone (415) 206-3103

Other identifiers 1

IdentifierTypeStateIssuer
00G645460MedicaidCA

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
I20080701000341 CA Practitioner - Cardiovascular Disease (Cardiology)Practitioner - Internal Medicine 4284706540 Reassigns benefits to 3 organizations

Care Compare profile

Medicare Care Compare
Specialty
Cardiovascular Disease (Cardiology)Also: Internal Medicine
Education
University of California, San Diego School of Medicine, 1987
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
University of California SFGH Medical GroupGroup PAC ID 5496668410, shared by 14 NPIs, 566 clinicians

Practice addresses (Care Compare)

1001 Potrero Ave
San Francisco, CA 94110-3518
Phone (628) 206-3503

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
97.28 of 100Reported as group
Quality
89.92
Promoting interoperability
100
Improvement activities
40
Cost
78.23

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
64546CAMDPharmacist
G64546CAMDCardiovascular Disease Physician

Practice roles

OrganizationSpecialtyStatusNew patients
University of California SFGH Medical Group CurrentSince Jan 1, 2000 Accepting new patients
City & County of San Francisco CurrentSince Nov 10, 2019 Accepting new patients
University of California SFGH Medical Group Internal Medicine CurrentSince Jan 1, 2000 Accepting new patients
City and County of San Francisco CurrentSince Nov 10, 2019 Accepting new patients
University of California SFGH Medical Group Current Accepting new patients
University of California SFGH Medical Group Cardiovascular Disease CurrentSince Sep 1, 2001 Accepting new patients
City & County of San Francisco Current Accepting new patients

Locations

1001 Potrero Ave
Rm 5G1
San Francisco, CA 94110
Phone (628) 206-3503

1001 Potrero Ave
Bldg 5
San Francisco, CA 94110
Phone (628) 206-5753

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

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

Organizations & group practices 7

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 4

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": "1150329600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1124062013",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 7464",
            "city": "SAN FRANCISCO",
            "state": "CA",
            "postal_code": "941207464",
            "telephone_number": "415-206-3103",
            "fax_number": "415-206-3872"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1001 POTRERO AVENUE",
            "address_2": "RM 5G1",
            "city": "SAN FRANCISCO",
            "state": "CA",
            "postal_code": "941103518",
            "telephone_number": "415-206-3503",
            "fax_number": "415-206-5100"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "GRAY",
        "first_name": "MARY",
        "middle_name": "OMALLEY",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2006-06-15",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "CA",
            "license": "G64546",
            "primary": false
        },
        {
            "code": "207RC0000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Cardiovascular Disease",
            "state": "CA",
            "license": "G64546",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "00G645460",
            "state": "CA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in San Francisco, CA

Sources for this page

Verify at the official NPI Registry.