Rupert Roupen Horoupian, MD

Primary specialty

Surgery PhysicianTaxonomy code 208600000X

License

G84866 Issued in CA

Practice address

365 Hawthorne Ave
Suite 101
Oakland, CA 94609-3107

Phone

(510) 465-5523

Fax

(510) 832-6061

NPI assigned

Apr 5, 2006

Sex

Male

Sole proprietor

No

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

Specialties & licenses 1

Addresses

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

Specialty

General Surgery

Education

University of Maryland School of Medicine, 1993

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

Sutter Bay Medical FoundationGroup PAC ID 4284538778, 3,783 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Alta Bates Summit Medical Center Hospital, Oakland, CA, CCN 050043
• Alta Bates Summit Medical Center - Alta Bates Camp Hospital, Berkeley, CA, CCN 050305
• St Rose Hospital Hospital, Hayward, CA, CCN 050002

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: rhoroupian161302@hisp.ehr.sutterhealth.org
• Direct secure messaging: rhoroupian111875@ehr.johnmuirhealth.com

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.

• Sutter Bay Medical Foundation

  • Multi-Specialty Clinic/Center
  • Palo Alto, CA
  • NPI 1013950807
  Medicare reassignment Care Compare group NPD
• Bass Medical Group

  • Obstetrics & Gynecology Physician
  • Walnut Creek, CA
  • NPI 1174253405
  Medicare reassignment NPD
• Bass Medical Group

  • Specialist
  • Walnut Creek, CA
  • NPI 1154401941
  NPD
• Bass Medical Group

  • Orthopaedic Surgery Physician
  • San Ramon, CA
  • NPI 1467329904
  NPD
• Sutter Bay Medical Foundation

  • Clinical Medical Laboratory
  • Santa Clara, CA
  • NPI 1669287033
  NPD
• Alta Bates Summit Medical Center

  • Substance Use Disorder Rehabilitation Hospital Unit
  • Oakland, CA
  • NPI 1043358542
  NPD (past)
• County of Santa Clara

  • General Acute Care Hospital
  • San Jose, CA
  • NPI 1063406551
  NPD (past)
• Eden Medical Center/San Leandro Hospital Campus

  • Rehabilitation Hospital Unit
  • San Leandro, CA
  • NPI 1679523633
  NPD (past)
• Hayward Sisters Hospital

  • General Acute Care Hospital
  • Hayward, CA
  • NPI 1942298153
  NPD (past)
• Sutter Bay Hospitals

  • Rehabilitation Hospital Unit
  • Oakland, CA
  • NPI 1194171371
  NPD (past)

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

• Hayward Sisters Hospital

  • General Acute Care Hospital
  • Hayward, CA
  • NPI 1942298153
  Care Compare affiliation
• Sutter Bay Hospitals

  • General Acute Care Hospital
  • Oakland, CA
  • NPI 1295181477
  Care Compare affiliation
• Sutter Bay Hospitals

  • General Acute Care Hospital
  • Berkeley, CA
  • NPI 1639523004
  Care Compare affiliation

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

{
    "created_epoch": "1144195200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1738886400000",
    "number": "1184686156",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "27206 CALAROGA AVE STE 206",
            "city": "HAYWARD",
            "state": "CA",
            "postal_code": "945454300",
            "telephone_number": "510-732-5731",
            "fax_number": "510-732-5739"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "365 HAWTHORNE AVE",
            "address_2": "SUITE 101",
            "city": "OAKLAND",
            "state": "CA",
            "postal_code": "946093107",
            "telephone_number": "510-465-5523",
            "fax_number": "510-832-6061"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "27206 Calaroga Ave Ste 206",
            "address_purpose": "LOCATION",
            "city": "Hayward",
            "state": "CA",
            "postal_code": "945454300",
            "country_code": "US",
            "telephone_number": "510-732-5731",
            "fax_number": "510-732-5739",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "3010 Colby St Ste 118",
            "address_purpose": "LOCATION",
            "city": "Berkeley",
            "state": "CA",
            "postal_code": "947052059",
            "country_code": "US",
            "telephone_number": "510-486-0818",
            "fax_number": "510-486-0819",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "HOROUPIAN",
        "first_name": "RUPERT",
        "middle_name": "ROUPEN",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-04-05",
        "last_updated": "2025-02-07",
        "certification_date": "2025-02-07",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208600000X",
            "taxonomy_group": "",
            "desc": "Surgery",
            "state": "CA",
            "license": "G84866",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Lashanna Yolanda Hornage, M.A
• Lisa Marie Horne
• Tiffany Horne
• Jennifer Marie Hornes
• Benjamin M. Hornik, MD
• Lisa Frances Horowitz, LMFT
• Kimberly Anne Araneta Hortillosa, L.AC.
• Alison Horton, NP
• Cheryl Lynn Horton, MD
• Claire Katherine Horton, MD

• Surgery Physician in Oakland, CA
• Providers in Oakland, CA by specialty
• Surgery Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Feb 7, 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.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.