Individual provider Active NPI

Cindy J. Lai, MD

  • Internal Medicine Physician
  • San Francisco, CA
National Provider Identifier
1821055922
Registry record updated Jul 13, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Internal Medicine PhysicianTaxonomy code 207R00000X
License
A78730 Issued in CA
Practice address
1701 Divisadero Street
San Francisco, CA 94143-0001
Phone
(415) 353-7300
Fax
(415) 353-7901
NPI assigned
May 1, 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 1

Specialty (taxonomy)CodeLicenseStatePrimary
Internal Medicine Physician 207R00000X A78730 CA Primary

Addresses

Primary practice location

1701 Divisadero Street
San Francisco, CA 94143-0001

Mailing address

1635 Divisadero Street, Suite 625, Box 1821
San Francisco, CA 94143-0001
Phone (415) 476-4029

Other identifiers 1

IdentifierTypeStateIssuer
0A7873000MedicaidCA

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
I20080225000532 CA Practitioner - HospitalistPractitioner - Internal Medicine 5698859049 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
HospitalistAlso: Internal Medicine
Education
Other, 1999
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
University of California San FranciscoGroup PAC ID 4486567229, 1,780 clinicians
Regents of the University of CaliforniaGroup PAC ID 4284547274, 706 clinicians

Practice addresses (Care Compare)

1545 Divisadero St
San Francisco, CA 94115-3425
Phone (415) 476-1000

2330 Post St
San Francisco, CA 94115-3465
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

Merit-based Incentive Payment System (MIPS)

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

Merit-based Incentive Payment System (MIPS)

Final score
84.89 of 100Reported as group
Quality
81.13
Improvement activities
40
Cost
71.5

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
A78730CAMDInternal Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
University of California San Francisco Current Accepting new patients
Regents of the University of California Internal Medicine CurrentSince Apr 17, 2002 Accepting new patients

Locations

3333 California St
#S110
San Francisco, CA 94118
Phone (415) 514-2664

1701 Divisadero St
San Francisco, CA 94115
Phone (415) 353-7300

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

1635 Divisadero St
Ste 625
San Francisco, CA 94115
Phone (415) 476-1977

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

Interoperability endpoints

  • Direct secure messaging: clai4592@direct-ucsfmedicalcenter.org

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 1

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": "1146441600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1821055922",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1635 DIVISADERO STREET, SUITE 625, BOX 1821",
            "city": "SAN FRANCISCO",
            "state": "CA",
            "postal_code": "941430001",
            "telephone_number": "415-476-4029",
            "fax_number": "415-476-4150"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1701 DIVISADERO STREET",
            "city": "SAN FRANCISCO",
            "state": "CA",
            "postal_code": "941430001",
            "telephone_number": "415-353-7300",
            "fax_number": "415-353-7901"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "LAI",
        "first_name": "CINDY",
        "middle_name": "J.",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2006-05-01",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "CA",
            "license": "A78730",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "0A7873000",
            "state": "CA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in San Francisco, CA

Sources for this page

Verify at the official NPI Registry.