Ajay Kumar Upadhyay, MD

Primary specialty

Surgery PhysicianTaxonomy code 208600000X

License

A53488 Issued in CA

Practice address

365 Hawthorne Ave
Ste 101
Oakland, CA 94609-3115

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

Other identifiers 1

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

Other, 1980

Medicare assignment

Accepts the Medicare-approved amount as payment in full

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
• St Rose Hospital Hospital, Hayward, CA, CCN 050002
• Eden Medical Center Hospital, Castro Valley, CA, CCN 050488
• Alta Bates Summit Medical Center - Alta Bates Camp Hospital, Berkeley, CA, CCN 050305

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Networks

• BSC 65 PLUS INDIVIDUAL MAPD

Interoperability endpoints

• Direct secure messaging: aupadhyay161300@hisp.ehr.sutterhealth.org
• FHIR API: https://pmh-vmhaiku-01.pmh.org/FHIR/PARKLAND/api/FHIR/R4
• FHIR API: https://epicproxy.et0965.epichosted.com/FHIRProxy/api/FHIR/R4/
• Direct secure messaging: aupadhyay111903@ehr.johnmuirhealth.com
• FHIR API: https://epicproxy.et0965.epichosted.com/FHIRProxy/api/FHIR/DSTU2/

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

  • Orthopaedic Surgery Physician
  • San Ramon, CA
  • NPI 1467329904
  NPD
• Bay Area Surgical Specialists, Inc a Medical Corporation

  • Orthopaedic Surgery Physician
  • Sacramento, CA
  • NPI 1356702526
  NPD
• Alameda Health System

  • General Acute Care Hospital
  • Oakland, CA
  • NPI 1396764353
  NPD (past)
• Bass Medical Group

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

  • Pain Medicine Physician
  • Visalia, CA
  • NPI 1326409343
  NPD (past)
• Eden Medical Center/San Leandro Hospital Campus

  • Rehabilitation Hospital Unit
  • San Leandro, CA
  • NPI 1679523633
  NPD (past)
• Sutter Bay Hospitals

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

  • General Acute Care Hospital
  • Denver, CO
  • NPI 1023062098
  NPD (past)
• Madison Medical Center Stockhoff Memorial Nursing Home

  • Critical Access Hospital
  • Fredericktown, MO
  • NPI 1720163025
  NPD (past)
• Parkland Health Center

  • General Acute Care Hospital
  • Farmington, MO
  • NPI 1003824061
  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
  • Castro Valley, CA
  • NPI 1063812907
  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": "1739232000000",
    "number": "1104888155",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "365 HAWTHORNE AVE",
            "address_2": "STE 101",
            "city": "OAKLAND",
            "state": "CA",
            "postal_code": "946093115",
            "telephone_number": "510-465-5523",
            "fax_number": "510-832-6061"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "365 HAWTHORNE AVE",
            "address_2": "STE 101",
            "city": "OAKLAND",
            "state": "CA",
            "postal_code": "946093115",
            "telephone_number": "510-465-5523",
            "fax_number": "510-832-6061"
        }
    ],
    "practiceLocations": [
        {
            "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"
        },
        {
            "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"
        }
    ],
    "basic": {
        "last_name": "UPADHYAY",
        "first_name": "AJAY",
        "middle_name": "KUMAR",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-04-05",
        "last_updated": "2025-02-11",
        "certification_date": "2025-02-11",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208600000X",
            "taxonomy_group": "",
            "desc": "Surgery",
            "state": "CA",
            "license": "A53488",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "GR0098240",
            "state": "CA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• University Healthcare Alliance
• University Healthcare Alliance
• University Healthcare Alliance
• Unlimited Homehealth
• Elizabeth A Uno, PH.D.
• Rani Yogendra Upadhyay, M.D.
• Upload Foundation
• Urban Catalyst Psychotherapy, a Licensed Clinical Social Worker Corpor
• Thomas H. Urbania, MD
• Emil Paul Talabis Urbano

• 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 11, 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.