Derek Joseph Fiedler

Primary specialty

Certified Registered Nurse AnesthetistTaxonomy code 367500000X

License

95001930 Issued in CA

Practice address

101 The City Dr S
Orange, CA 92868-3201

Phone

(714) 456-8888

NPI assigned

Feb 11, 2019

Last updated

Sep 29, 2026By 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 2

Addresses

Medicare fee-for-service enrollment

Enrolled in CA

Enrollment records 1

Specialty

Certified Registered Nurse Anesthetist (Crna)

Education

Other, 2018

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Brotman Medical Anesthesia GroupGroup PAC ID 8123027547, 9 clinicians

San Gabriel Anesthesia Associates, PCGroup PAC ID 3678720604, 16 clinicians

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Practice roles

Locations

Networks

• BSC 65 PLUS INDIVIDUAL MAPD

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.

• Brotman Medical Anesthesia Group

  • Anesthesiology Physician
  • Woodland Hills, CA
  • NPI 1154378362
  Medicare reassignment Care Compare group NPD
• San Gabriel Anesthesia Associates, PC

  • Certified Registered Nurse Anesthetist
  • Santa Ana, CA
  • NPI 1538424908
  Medicare reassignment Care Compare group
• Escondido Anesthesia Associates LP

  • Certified Registered Nurse Anesthetist
  • Escondido, CA
  • NPI 1588151120

  Nurse Anesthetist, Certified Registered

  Medicare reassignment NPD
• Regents of the Univ of Ca

  • Maternal & Fetal Medicine Physician
  • Sacramento, CA
  • NPI 1013906973
  Medicare reassignment NPD
• Regents of the University of

  dba University Anesthesia Associates

  • Anesthesiology Physician
  • Orange, CA
  • NPI 1487602546
  Medicare reassignment NPD
• Regents of the University of California

  • Certified Registered Nurse Anesthetist
  • San Diego, CA
  • NPI 1265535702

  Nurse Anesthetist, Certified Registered

  Medicare reassignment NPD
• Morpheus Anesthesia Consultants LLC

  • Certified Registered Nurse Anesthetist
  • Colton, CA
  • NPI 1023529591

  Nurse Anesthetist, Certified Registered

  NPD
• Regents of the Univ of Ca

  • Certified Registered Nurse Anesthetist
  • Sacramento, CA
  • NPI 1235122342

  Nurse Anesthetist, Certified Registered

  NPD
• Regents of the Univ of Ca

  • Diagnostic Radiology Physician
  • Sacramento, CA
  • NPI 1477546406
  NPD
• Regents of the University of California

  • Diagnostic Radiology Physician
  • San Diego, CA
  • NPI 1558463927
  NPD
• Regents of the Univ of Ca

  • Surgery Physician
  • Sacramento, CA
  • NPI 1427041698
  NPD (past)
• Regents of the University of California

  dba Ucsd Medical Center Pharmacy

  • Pharmacy
  • San Diego, CA
  • NPI 1598786576
  NPD (past)

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

{
    "created_epoch": "1549843200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1790640000000",
    "number": "1205391620",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "200 S MANCHESTER AVE STE 300",
            "city": "ORANGE",
            "state": "CA",
            "postal_code": "928683219",
            "telephone_number": "714-456-8888"
        },
        {
            "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": "University of Chicago",
            "address_2": "5841 S Maryland Ave",
            "address_purpose": "LOCATION",
            "city": "Chicago",
            "state": "IL",
            "postal_code": "60637",
            "country_code": "US",
            "telephone_number": "773-702-1234",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "200 W Arbor Dr",
            "address_purpose": "LOCATION",
            "city": "San Diego",
            "state": "CA",
            "postal_code": "921039000",
            "country_code": "US",
            "telephone_number": "800-926-8273",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "700 W El Norte Pkwy",
            "address_purpose": "LOCATION",
            "city": "Escondido",
            "state": "CA",
            "postal_code": "920263923",
            "country_code": "US",
            "telephone_number": "760-738-7830",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "FIEDLER",
        "first_name": "DEREK",
        "middle_name": "JOSEPH",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2019-02-11",
        "last_updated": "2026-09-29",
        "certification_date": "2024-07-31",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "367500000X",
            "taxonomy_group": "",
            "desc": "Nurse Anesthetist, Certified Registered",
            "state": "CA",
            "license": "95001930",
            "primary": true
        },
        {
            "code": "207L00000X",
            "taxonomy_group": "",
            "desc": "Anesthesiology",
            "state": "IL",
            "license": "209018750",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Andrea Ferreyra Herrejon
• Julie Ferris, MD
• Christopher Ferry, ATC
• Alyssa Michelle Fessler, FNP
• Amanda Lynn Fessler, M.A.
• Elizabeth I Fiedler, MD
• Robert Ryan Field, M.D.
• Sarah Samimi Field, MD
• Mercedes Kennah Fielding
• Katherine Fierling, L.C.S.W.

• Certified Registered Nurse Anesthetist in Orange, CA
• Providers in Orange, CA by specialty
• Certified Registered Nurse Anesthetist in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 29, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
• 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.