Ryan N. Duggal, MD

Primary specialty

Obstetrics & Gynecology PhysicianTaxonomy code 207V00000X

License

A202164 Issued in CA

Practice address

1975 4T Street
San Francisco, CA 94158

Phone

(415) 353-2566

Fax

(415) 353-3533

NPI assigned

Mar 29, 2019

Sex

Male

Sole proprietor

Yes

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

Specialties & licenses 3

Addresses

Medicare fee-for-service enrollment

Enrolled in TX, CA2 enrollments

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 2

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: rduggal426421@direct-ucsfmedicalcenter.org

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.

• UCSF Dept of Surgery

  • Surgery Physician
  • San Francisco, CA
  • NPI 1477627537
  Medicare reassignment NPD
• UCSF Medical Group Business Services

  • Internal Medicine Physician
  • San Francisco, CA
  • NPI 1477624104

  Obstetrics & Gynecology

  Medicare reassignment NPD
• University of California San Francisco

  • Pediatrics Physician
  • San Francisco, CA
  • NPI 1861578973
  Medicare reassignment NPD
• Pine Ridge Indian Health Service Hospital

  • General Acute Care Hospital
  • Pine Ridge, SD
  • NPI 1497786412

  TX

  Medicare reassignment NPD
• UCSF Medical Group Business Services

  • Health Service Clinic/Center
  • San Francisco, CA
  • NPI 1194115246
  NPD
• University of California San Francisco

  • Community/Retail Pharmacy
  • San Francisco, CA
  • NPI 1659141711
  NPD
• Pine Ridge Indian Health Service Hospital

  • Clinic/Center
  • Martin, SD
  • NPI 1003208257
  NPD
• Pine Ridge Indian Health Service Hospital

  • Clinic/Center
  • Wanblee, SD
  • NPI 1962559518
  NPD
• University of California San Francisco Medical Center

  • General Acute Care Hospital
  • San Francisco, CA
  • NPI 1144325440
  NPD (past)

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

{
    "created_epoch": "1553817600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1745280000000",
    "number": "1225599327",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "501 S CHIPETA WAY",
            "city": "SALT LAKE CITY",
            "state": "UT",
            "postal_code": "841081222",
            "telephone_number": "801-581-2121"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1975 4T STREET",
            "city": "SAN FRANCISCO",
            "state": "CA",
            "postal_code": "94158",
            "telephone_number": "415-353-2566",
            "fax_number": "415-353-3533"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "2301 Erwin Rd",
            "address_purpose": "LOCATION",
            "city": "Durham",
            "state": "NC",
            "postal_code": "277054699",
            "country_code": "US",
            "telephone_number": "919-684-8111",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "501 S Chipeta Way",
            "address_purpose": "LOCATION",
            "city": "Salt Lake City",
            "state": "UT",
            "postal_code": "841081222",
            "country_code": "US",
            "telephone_number": "801-581-2121",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "DUGGAL",
        "first_name": "RYAN",
        "middle_name": "N.",
        "credential": "MD",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2019-03-29",
        "last_updated": "2025-04-22",
        "certification_date": "2025-04-15",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207V00000X",
            "taxonomy_group": "",
            "desc": "Obstetrics & Gynecology",
            "state": "UT",
            "license": "13423486-1205",
            "primary": false
        },
        {
            "code": "2084A0401X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Addiction Medicine",
            "state": "UT",
            "license": "13423486-1205",
            "primary": false
        },
        {
            "code": "207V00000X",
            "taxonomy_group": "",
            "desc": "Obstetrics & Gynecology",
            "state": "CA",
            "license": "A202164",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Sara J Duffy, NP
• Andrew Troy Dufrene, PHD, BCBA
• Tessa Marie Dufur
• Komal Duggal
• Priya Duggal, MD
• Julie Duggan
• Karyn Duggan, MS, CNS, IFMCP
• Sophia Rose Duggan
• Quan-Yang Duh, MD
• Gabriel Duhancioglu, MD

• Obstetrics & Gynecology Physician in San Francisco, CA
• Providers in San Francisco, CA by specialty
• Obstetrics & Gynecology Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 22, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.