Individual provider Active NPI

Megan Creasman, MD

  • Rheumatology Physician
  • San Francisco, CA
National Provider Identifier
1215565288
Registry record updated Sep 30, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Rheumatology PhysicianTaxonomy code 207RR0500X
License
186931 Issued in CA
Practice address
1580 Valencia St
San Francisco, CA 94110-4423
Phone
(415) 353-2497
Fax
(415) 353-2530
NPI assigned
Mar 27, 2020
Last updated
Sep 30, 2026By the provider in NPPES
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Sep 30, 2026

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Rheumatology Physician 207RR0500X 186931 CA Primary
Student in an Organized Health Care Education/Training Program 390200000X

Addresses

Primary practice location

1580 Valencia St
San Francisco, CA 94110-4423

Mailing address

1580 Valencia St
San Francisco, CA 94110-4423
Phone (415) 353-2497

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
I20250812002518 CA Practitioner - RheumatologyPractitioner - Internal Medicine 0941664486 Reassigns benefits to 4 organizations

Care Compare profile

Medicare Care Compare
Specialty
RheumatologyAlso: Internal Medicine
Education
University of California, San Francisco School of Medicine, 2020
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
UCSF Medical Group Business ServicesGroup PAC ID 3779497870, 1,533 clinicians

Practice addresses (Care Compare)

2330 Post St
San Francisco, CA 94115-3465
Phone (415) 476-4029

3100 San Pablo Ave
Berkeley, CA 94702-2498
Phone (510) 985-5020

400 Parnassus Ave
San Francisco, CA 94143-2202

505 Parnassus Ave
San Francisco, CA 94143-2204
Phone (415) 476-1000

Hospital & facility affiliations

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
186931CAMDRheumatology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
UCSF Medical Group Business Services CurrentSince Jul 30, 2025 Accepting new patients
UCSF Medical Group Business Services CurrentSince Jul 30, 2025 Accepting new patients
City and County of San Francisco CurrentSince Nov 17, 2025 Accepting new patients
City & County of San Francisco CurrentSince Nov 17, 2025 Accepting new patients
University of California San Francisco CurrentSince Jul 30, 2025 Accepting new patients
Regents of the University of California Rheumatology CurrentSince Aug 3, 2025 Accepting new patients
University of California San Francisco CurrentSince Jul 30, 2025 Accepting new patients
University of California San Francisco Medical Center Past Accepting new patients
Regents of the University of California Rheumatology Past Accepting new patients

Locations

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

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

400 Parnassus Ave
San Francisco, CA 94143
Phone (415) 353-2000

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

400 Parnassus Ave
#B1
San Francisco, CA 94143
Phone (415) 353-2507

400 Parnassus Ave
Fl B1
San Francisco, CA 94143
Phone (415) 353-2497

4150 Clement St
San Francisco, CA 94121
Phone (415) 750-2110

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

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

Interoperability endpoints

  • Direct secure messaging: mwinkelman81255@direct-ucsfmedicalcenter.org

Organizations & group practices 10

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 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": "1585267200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1790726400000",
    "number": "1215565288",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1580 VALENCIA ST",
            "city": "SAN FRANCISCO",
            "state": "CA",
            "postal_code": "941104423",
            "telephone_number": "415-353-2497",
            "fax_number": "415-353-2530"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1580 VALENCIA ST",
            "city": "SAN FRANCISCO",
            "state": "CA",
            "postal_code": "941104423",
            "telephone_number": "415-353-2497",
            "fax_number": "415-353-2530"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "CREASMAN",
        "first_name": "MEGAN",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2020-03-27",
        "last_updated": "2026-09-30",
        "certification_date": "2026-09-30",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RR0500X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Rheumatology",
            "state": "CA",
            "license": "186931",
            "primary": true
        },
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": null,
            "license": null,
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in San Francisco, CA

Sources for this page

Verify at the official NPI Registry.