Regents of the University of California

Primary specialty

Rheumatology PhysicianTaxonomy code 207RR0500X

License

220000091 Issued in CA

Legal business name

REGENTS OF THE UNIVERSITY OF CALIFORNIA

Doing business as

UCSF Department of Medicine Rheumatology

Practice address

505 Parnassus Ave
San Francisco, CA 94143-0120

Phone

(415) 353-2497

Fax

(415) 353-2297

NPI assigned

Nov 7, 2006

Last updated

Apr 16, 2025By the provider in NPPES

Organization subpart

Yes

Parent organization

UCSF MEDICAL CENTERAs reported in NPPES

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

Authorized official

Name

Mr. David Rein

Title

Interim Vice Dean, Administration

Phone

(415) 476-4003

Specialties & licenses 1

Addresses

Other identifiers 1

Other names 1

• UCSF Department of Medicine Rheumatology Doing business as

Electronic endpoints 1

Medicare fee-for-service enrollment

Enrolled in CA

Enrollment records 1

Other NPIs on the same Medicare enrollment 6

NPIs listed together on one Medicare enrollment, typically parts of the same organization.

• Regents of the University of California

  dba UCSF Department of Medicine

  • Endocrinology, Diabetes & Metabolism Physician
  • San Francisco, CA
  • NPI 1235322348

  O20031106000389

  Same enrollment
• Regents of the University of California

  dba UCSF Department of Medicine Endocrine

  • Endocrinology, Diabetes & Metabolism Physician
  • San Francisco, CA
  • NPI 1376613943

  O20031106000389

  Same enrollment
• Regents of the University of California

  dba UCSF Department of Medicine Gastroenterology

  • Gastroenterology Physician
  • San Francisco, CA
  • NPI 1467522037

  O20031106000389

  Same enrollment
• Regents of the University of California

  dba UCSF Department of Medicine Allergy

  • Allergy Physician
  • San Francisco, CA
  • NPI 1477626042

  O20031106000389

  Same enrollment
• Regents of the University of California

  dba UCSF Department of Medicine Hematology Oncology

  • Hematology & Oncology Physician
  • San Francisco, CA
  • NPI 1558431122

  O20031106000389

  Same enrollment
• Regents of the University of California

  dba UCSF Dept of Medicine General Medicine

  • Internal Medicine Physician
  • San Francisco, CA
  • NPI 1760552343

  O20031106000389

  Same enrollment

Part of

UCSF Mt Zion HSP Eeg Op

Locations (25 of 189)

Networks

• BSC 65 PLUS INDIVIDUAL MAPDPlans: Blue Shield 65 Plus (HMO) (H0504-015-000, H0504); Blue Shield 65 Plus (HMO) (H0504-039-000, H0504); Blue Shield 65 Plus Plan 2 (HMO) (H0504-021-000, H0504); Blue Shield Inspire (HMO) (H0504-041-000, H0504); Blue Shield 65 Plus (HMO) (H0504-038-000, H0504); Blue Shield Inspire (HMO) (H0504-047-000, H0504); Blue Shield 65 Plus (HMO) (H0504-026-000, H0504); Blue Shield Advantage (HMO) (H0504-050-000, H0504); Blue Shield AdvantageOptimum Plan (HMO) (H5928-004-000, H5928); Blue Shield Inspire (HMO) (H0504-043-000, H0504)…

Practitioners 1,441

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles, and the practitioner matching its NPPES authorized official.

• Gerson Charles Bernhard, MD

  • Rheumatology Physician
  • San Francisco, CA
  • NPI 1710930052
  NPD
• Ingrid Juliana Block-Kurbisch, M.D.

  • Specialist
  • San Francisco, CA
  • NPI 1952479966
  NPD
• Sharon Alane Chung, MD

  • Rheumatology Physician
  • San Francisco, CA
  • NPI 1649393737
  NPD
• Jon D. Levine, M.D.

  • Internal Medicine Physician
  • San Francisco, CA
  • NPI 1821025479
  NPD
• Dolores M Shoback, MD

  • Internal Medicine Physician
  • San Francisco, CA
  • NPI 1508821208
  NPD
• Julie Zikherman, M.D.

  • Rheumatology Physician
  • San Francisco, CA
  • NPI 1619147436
  NPD
• Ramani Krishna Chaganti, M.D.

  • Rheumatology Physician
  • New York, NY
  • NPI 1306045695
  NPD
• Joshua Jorge Vasquez, M.D.

  • Critical Care Medicine (Anesthesiology) Physician
  • Aurora, CO
  • NPI 1598909160
  NPD
• Shahram Aarabi, MD

  • Vascular Surgery Physician
  • Oakland, CA
  • NPI 1972700458
  NPD (past)
• Alvin Joseph Untalan Abad, FNP-C

  • Family Nurse Practitioner
  • San Francisco, CA
  • NPI 1154919306
  NPD (past)
• Shoko Emily Abe, M.D.

  • Surgery Physician
  • Berkeley, CA
  • NPI 1609178136
  NPD (past)
• Heather Abellana, NP

  • Nurse Practitioner
  • San Francisco, CA
  • NPI 1699481523
  NPD (past)

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1162857600000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1744761600000",
    "number": "1881763597",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1635 DIVISADERO ST",
            "address_2": "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": "505 PARNASSUS AVE",
            "city": "SAN FRANCISCO",
            "state": "CA",
            "postal_code": "941430120",
            "telephone_number": "415-353-2497",
            "fax_number": "415-353-2297"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "REGENTS OF THE UNIVERSITY OF CALIFORNIA",
        "organizational_subpart": "YES",
        "parent_organization_legal_business_name": "UCSF MEDICAL CENTER",
        "enumeration_date": "2006-11-07",
        "last_updated": "2025-04-16",
        "certification_date": "2025-04-16",
        "status": "A",
        "authorized_official_last_name": "REIN",
        "authorized_official_first_name": "DAVID",
        "authorized_official_title_or_position": "INTERIM VICE DEAN, ADMINISTRATION",
        "authorized_official_telephone_number": "415-476-4003",
        "authorized_official_name_prefix": "Mr."
    },
    "taxonomies": [
        {
            "code": "207RR0500X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Rheumatology",
            "state": "CA",
            "license": "220000091",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "GR0084563",
            "state": "CA"
        }
    ],
    "endpoints": [
        {
            "endpointType": "CONNECT",
            "endpointTypeDescription": "CONNECT URL",
            "endpoint": "https://esmd.officeally.io:8291/Gateway/DocumentSubmission/2_0/NhinService/XDRRequest_Service",
            "affiliation": "Y",
            "endpointDescription": "2.16.840.1.113883.3.2019.3",
            "affiliationName": "Bluemark LLC / Office Ally",
            "use": "OTHER",
            "useDescription": "Other",
            "useOtherDescription": "CMS esMD eMDR",
            "address_1": "1300 SE Cardinal Ct Ste 190",
            "city": "Vancouver",
            "state": "WA",
            "country_code": "US",
            "postal_code": "986839683",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": [
        {
            "organization_name": "UCSF Department of Medicine Rheumatology",
            "code": "3",
            "type": "Doing Business As"
        }
    ]
}

• Regents of the University of California (UCSF Department of Medicine Allergy)
• Regents of the University of California (UCSF Proctor Medical Group)
• Regents of the University of California (UCSF Department of Medicine Hematology Oncology)
• Regents of the University of California
• Regents of the University of California (UCSF Dept of Medicine General Medicine)
• Regents of the University of California (UCSF Faculty Endodontics)
• Regents of the University of California
• Regents of the University of California - UCSF (UCSF Clinical Integrated Partners)
• Regents of the University of California - UCSF
• Regents of the University of California SFGH Clinical Practice Group (UCSF SFGH Clinical Lab)

• Rheumatology Physician in San Francisco, CA
• Providers in San Francisco, CA by specialty
• Rheumatology Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 16, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.