NPIMap

Individual provider Active NPI

Chelsea Hayman, MD

  • Emergency Medicine Physician
  • San Francisco, CA
National Provider Identifier
1922680032
Registry record updated Jun 12, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Emergency Medicine PhysicianTaxonomy code 207P00000X
License
A201641 Issued in CA
Practice address
1001 Potrero Ave.
Building 25, 1St Floor
San Francisco, CA 94110
Phone
(628) 206-8111
Fax
(628) 206-9038
NPI assigned
Apr 27, 2021
Last updated
Jun 12, 2025By the provider in NPPES
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jun 12, 2025

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Student in an Organized Health Care Education/Training Program 390200000X NY
Emergency Medicine Physician 207P00000X A201641 CA Primary

Addresses

Primary practice location

1001 Potrero Ave.
Building 25, 1St Floor
San Francisco, CA 94110

Mailing address

24010 Balsam CT
Auburn, CA 95602-8162
Phone (925) 528-9181

Other practice location 1

550 1st Ave
New York, NY 10016-6402
Phone (212) 263-5506

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
I20250626001387 CA Practitioner - Emergency Medicine 9638681356 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Emergency Medicine
Education
Other, 2021
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices

Practice addresses (Care Compare)

1001 Potrero Ave
San Francisco, CA 94110-3518
Phone (628) 206-5753

Hospital & facility affiliations

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
A201641CAMDEmergency Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
University of California SFGH Medical Group CurrentSince Jul 13, 2025 Accepting new patients
University of California SFGH Medical Group Emergency Medicine CurrentSince Jul 13, 2025 Accepting new patients
University of California SFGH Medical Group Current Accepting new patients
City and County of San Francisco CurrentSince Jul 14, 2025 Accepting new patients
City & County of San Francisco CurrentSince Jul 14, 2025 Accepting new patients
City & County of San Francisco Current Accepting new patients

Locations

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

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

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

375 Laguna Honda Blvd
#B200
San Francisco, CA 94116
Phone (415) 759-3348

Interoperability endpoints

  • Direct secure messaging: chayman457168@nyumc.direct-ci.com

Organizations & group practices 6

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

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": "1619481600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1749686400000",
    "number": "1922680032",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "24010 BALSAM CT",
            "city": "AUBURN",
            "state": "CA",
            "postal_code": "956028162",
            "telephone_number": "925-528-9181"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1001 POTRERO AVE.",
            "address_2": "BUILDING 25, 1ST FLOOR",
            "city": "SAN FRANCISCO",
            "state": "CA",
            "postal_code": "94110",
            "telephone_number": "628-206-8111",
            "fax_number": "628-206-9038"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "550 1st Ave",
            "address_purpose": "LOCATION",
            "city": "New York",
            "state": "NY",
            "postal_code": "100166402",
            "country_code": "US",
            "telephone_number": "212-263-5506",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "HAYMAN",
        "first_name": "CHELSEA",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2021-04-27",
        "last_updated": "2025-06-12",
        "certification_date": "2025-06-12",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": "NY",
            "license": null,
            "primary": false
        },
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "CA",
            "license": "A201641",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in San Francisco, CA

Sources for this page

Verify at the official NPI Registry.