Tyler Ronnfeldt, MD

Primary specialty

Emergency Medicine PhysicianTaxonomy code 207P00000X

License

C202338 Issued in CA

Practice address

1812 Verdugo Blvd
Glendale, CA 91208-1407

Phone

(818) 790-7100

NPI assigned

Jun 22, 2017

Sex

Male

Sole proprietor

No

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

Specialties & licenses 2

Addresses

Medicare fee-for-service enrollment

Enrolled in NE, 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

Specialty

Emergency Medicine

Education

Other, 2017

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Usc Care Medical Group IncGroup PAC ID 0446157747, 1,378 clinicians

Methodist Fremont HealthGroup PAC ID 7911258520, 89 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Usc Verdugo Hills Hospital Hospital, Glendale, CA, CCN 050124
• Keck Hospital of Usc Hospital, Los Angeles, CA, CCN 050696
• Methodist Fremont Health Hospital, Fremont, NE, CCN 280077
• Usc Kenneth Norris Jr Cancer Hospital Hospital, Los Angeles, CA, CCN 050660

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: tyler.ronnfeldt@direct.nmhs.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.

• Usc Care Medical Group, Inc

  • General Practice Physician
  • Los Angeles, CA
  • NPI 1902846306
  Medicare reassignment Care Compare group NPD
• Methodist Fremont Health

  dba Methodist Fremont Health Professional Services

  • Internal Medicine Physician
  • Fremont, NE
  • NPI 1235618216

  Emergency Medicine

  Medicare reassignment Care Compare group NPD
• Midwest Emergency Grand Island Inc

  • Emergency Medicine Physician
  • Grand Island, NE
  • NPI 1508357930
  Medicare reassignment NPD
• Usc Care Medical Group, Inc

  dba Fair Oaks Clinic

  • Durable Medical Equipment & Medical Supplies
  • Pasadena, CA
  • NPI 1427937390
  NPD
• Nebraska Methodist Hospital

  dba Methodist Hospital

  • General Acute Care Hospital
  • Omaha, NE
  • NPI 1427147883
  NPD
• Unmc

  • General Acute Care Hospital
  • Omaha, NE
  • NPI 1962625772
  NPD (past)

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

• Keck Medical Center of Usc

  dba Keck Hospital of USC

  • General Acute Care Hospital
  • Los Angeles, CA
  • NPI 1013514199
  Care Compare affiliation
• Keck Medical Center of Usc

  dba USC Kenneth Norris Jr. Hospital

  • General Acute Care Hospital
  • Los Angeles, CA
  • NPI 1417554528
  Care Compare affiliation
• Usc Verdugo Hills Hospital

  • General Acute Care Hospital
  • Glendale, CA
  • NPI 1033716147
  Care Compare affiliation
• Methodist Fremont Health

  • Rural Acute Care Hospital
  • Fremont, NE
  • NPI 1033698543
  Care Compare affiliation
• Methodist Fremont Health

  • Rural Acute Care Hospital
  • Fremont, NE
  • NPI 1376498543
  Care Compare affiliation

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

{
    "created_epoch": "1498089600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783468800000",
    "number": "1083134878",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 31309",
            "city": "LOS ANGELES",
            "state": "CA",
            "postal_code": "900310309",
            "telephone_number": "626-457-6601"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1812 VERDUGO BLVD",
            "city": "GLENDALE",
            "state": "CA",
            "postal_code": "912081407",
            "telephone_number": "818-790-7100"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1515 Village Dr",
            "address_purpose": "LOCATION",
            "city": "Cottage Grove",
            "state": "OR",
            "postal_code": "974249700",
            "country_code": "US",
            "telephone_number": "541-767-5222",
            "fax_number": "541-767-5230",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "RONNFELDT",
        "first_name": "TYLER",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2017-06-22",
        "last_updated": "2026-07-08",
        "certification_date": "2026-07-08",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "OR",
            "license": "MD231257",
            "primary": false
        },
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "CA",
            "license": "C202338",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Howard Robert Romero, D.O.
• Linda Romero
• Raymundo Romero, M.D.
• Ronald S.Wu, MD Apc
• Rondo Care Transportation
• Mehran Roointan
• Roots Psychiatric Services PC
• Diane T Roque
• Madeline Zuleyma Roque
• Yenifer Rosario Ochoa

• Emergency Medicine Physician in Glendale, CA
• Providers in Glendale, CA by specialty
• Emergency Medicine Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 8, 2026; 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.