Individual provider Active NPI

Mary Welter

  • Internal Medicine Physician
  • San Francisco, CA
National Provider Identifier
1902463979
Registry record updated Oct 11, 2024
On this page

Key facts

NPPES NPI Registry
Primary specialty
Internal Medicine PhysicianTaxonomy code 207R00000X
License
A191802 Issued in CA
Practice address
521 Parnassus Ave
San Francisco, CA 94143-2206
Phone
(415) 885-3723
NPI assigned
May 23, 2019
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Oct 11, 2024

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Internal Medicine Physician 207R00000X A191802 CA Primary

Addresses

Primary practice location

521 Parnassus Ave
San Francisco, CA 94143-2206

Mailing address

521 Parnassus Ave
San Francisco, CA 94143-2206

Other practice location 1

1001 Potrero Ave Bldg 25
San Francisco, CA 94110-3518
Phone (628) 206-8000

Medicare participation

Medicare enrollment files
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

Enrollment IDStateProvider typePAC IDDetails
I20240717002032 CA Practitioner - Internal Medicine 0446648877 Reassigns benefits to 5 organizations

Care Compare profile

Medicare Care Compare
Specialty
Internal Medicine
Education
University of California, Davis School of Medicine, 2021
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Regents of the University of CaliforniaGroup PAC ID 4284547274, 706 clinicians

Practice addresses (Care Compare)

1701 Divisadero St
San Francisco, CA 94115-3011
Phone (415) 476-4029

505 Parnassus Ave
San Francisco, CA 94143-2204
Phone (415) 476-4029

Hospital & facility affiliations

  • UCSF Medical Center Hospital, San Francisco, CA, CCN 050454
  • UCSF Health St. Mary'S Hospital Hospital, San Francisco, CA, CCN 050457

Merit-based Incentive Payment System (MIPS)

Final score
100 of 100Reported as group
Quality
95
Improvement activities
40
Cost
80.65

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
A191802CAMDInternal Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
City & County of San Francisco Current Accepting new patients
University of California San Francisco CurrentSince Jun 30, 2024 Accepting new patients
Regents of the University of California Internal Medicine CurrentSince Jun 30, 2024 Accepting new patients
University of California San Francisco Current Accepting new patients
UCSF Medical Group Business Services Internal Medicine CurrentSince Jun 30, 2024 Accepting new patients
University of California SFGH Medical Group Current Accepting new patients
University of California San Francisco CurrentSince Jun 30, 2024 Accepting new patients
University of California SFGH Medical Group Internal Medicine CurrentSince Sep 12, 2024 Accepting new patients
City and County of San Francisco CurrentSince Aug 27, 2024 Accepting new patients
City & County of San Francisco CurrentSince Aug 27, 2024 Accepting new patients
UCSF Medical Group Business Services CurrentSince Jun 30, 2024 Accepting new patients
University of California SFGH Medical Group CurrentSince Sep 12, 2024 Accepting new patients
University of California San Francisco Medical Center Past Accepting new patients
Regents of the University of California Past Accepting new patients

Locations

2330 Post St
San Francisco, CA 94115
Phone (415) 502-4444

400 Parnassus Ave
#A632
San Francisco, CA 94143
Phone (415) 473-1000

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

1001 Potrero Ave
Bldg 25
San Francisco, CA 94110
Phone (415) 206-5753

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

505 Parnassus Ave
#M1480
San Francisco, CA 94143
Phone (415) 476-1528

505 Parnassus Ave
San Francisco, CA 94143
Phone (415) 476-9058

521 Parnassus Ave
San Francisco, CA 94143
Phone (415) 476-9035

2001 The Embarcadero
Ofc Of
San Francisco, CA 94143
Phone (628) 224-5503

Interoperability endpoints

  • Direct secure messaging: mwelter187278@direct-ucsfmedicalcenter.org

Organizations & group practices 14

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.

View all 14

Hospital & facility affiliations 2

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": "1558569600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1728604800000",
    "number": "1902463979",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "521 PARNASSUS AVE",
            "city": "SAN FRANCISCO",
            "state": "CA",
            "postal_code": "941432206"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "521 PARNASSUS AVE",
            "city": "SAN FRANCISCO",
            "state": "CA",
            "postal_code": "941432206",
            "telephone_number": "415-885-3723"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1001 Potrero Ave Bldg 25",
            "address_purpose": "LOCATION",
            "city": "San Francisco",
            "state": "CA",
            "postal_code": "941103518",
            "country_code": "US",
            "telephone_number": "628-206-8000",
            "fax_number": "628-206-8965",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "WELTER",
        "first_name": "MARY",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2019-05-23",
        "last_updated": "2024-10-11",
        "certification_date": "2024-10-11",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "CA",
            "license": "A191802",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in San Francisco, CA

Sources for this page

Verify at the official NPI Registry.