Timothy Matthew Ryan, M.D.

Primary specialty

Anesthesiology PhysicianTaxonomy code 207L00000X

License

A72433 Issued in CA

Practice address

101 The City Dr S
Orange, CA 92868-3201

Phone

(714) 456-8888

NPI assigned

Jul 27, 2006

Last updated

Nov 19, 2025By the provider in NPPES

Sex

Male

Sole proprietor

Yes

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

Specialties & licenses 1

Addresses

Other identifiers 2

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

Anesthesiology

Education

University of Minnesota Medical School, 1995

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Regents of the University ofGroup PAC ID 8729983473, 236 clinicians

Orange Coast Anesthesia IncGroup PAC ID 2466613591, 85 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Uci Health-Orange Hospital, Orange, CA, CCN 050348
• Southern California Hospital at Hollywood Hospital, Hollywood, CA, CCN 050135

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Locations

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.

• Orange Coast Anesthesia Inc

  • Anesthesiology Physician
  • Orange, CA
  • NPI 1508138256
  Medicare reassignment Care Compare group NPD
• Regents of the University of

  dba University Anesthesia Associates

  • Anesthesiology Physician
  • Orange, CA
  • NPI 1487602546
  Medicare reassignment Care Compare group NPD

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

• Southern California Healthcare System, Inc

  dba Southern California Hospital at Hollywood, at Van Nuys, at Culver City

  • General Acute Care Hospital
  • Hollywood, CA
  • NPI 1023010113
  Care Compare affiliation
• University of California Irvine

  dba University of California Irvine - Cac Urgent Care

  • Urgent Care Clinic/Center
  • Irvine, CA
  • NPI 1518739309

  Hospital

  Care Compare affiliation
• University of California Irvine

  dba Uci Health

  • General Acute Care Hospital
  • Orange, CA
  • NPI 1689608150
  Care Compare affiliation

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

{
    "created_epoch": "1153958400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1763510400000",
    "number": "1295759439",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "225 S LAKE AVE",
            "address_2": "535",
            "city": "PASADENA",
            "state": "CA",
            "postal_code": "911013005",
            "telephone_number": "626-795-6596",
            "fax_number": "626-795-8247"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "101 THE CITY DR S",
            "city": "ORANGE",
            "state": "CA",
            "postal_code": "928683201",
            "telephone_number": "714-456-8888"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1420 S Central Ave",
            "address_purpose": "LOCATION",
            "city": "Glendale",
            "state": "CA",
            "postal_code": "912042508",
            "country_code": "US",
            "telephone_number": "818-502-2252",
            "fax_number": "818-502-2317",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "RYAN",
        "first_name": "TIMOTHY",
        "middle_name": "MATTHEW",
        "credential": "M.D.",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2006-07-27",
        "last_updated": "2025-11-19",
        "certification_date": "2025-11-19",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207L00000X",
            "taxonomy_group": "",
            "desc": "Anesthesiology",
            "state": "CA",
            "license": "A72433",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "00A724330",
            "state": "CA"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "BLUE SHIELD",
            "identifier": "00A724330",
            "state": "CA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Roxanne Marie Ruzicka, M.S.
• Ervin Paul Ruzics, MD
• Dana C Ryan, HA.D.
• Kelly Laura Ryan, LPT
• Scott Laurence Ryan
• Tyler Dean Ryan, PA-C
• Victoria Ryan
• Erika Ryckman
• Toni Ann-Marie Rynerson
• Yena Julia Ryoo

• Anesthesiology Physician in Orange, CA
• Providers in Orange, CA by specialty
• Anesthesiology Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Nov 19, 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.