Tennille Greenfield, PA-C

Primary specialty

Surgical Physician AssistantTaxonomy code 363AS0400X

License

PA17945 Issued in CA

Practice address

113 Waterworks Way Ste 240
Irvine, CA 92618-3175

Phone

(949) 340-9622

Fax

(949) 528-3969

NPI assigned

May 18, 2007

Sex

Female

Sole proprietor

No

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

Specialties & licenses 2

Addresses

Other identifiers 1

Electronic endpoints 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: No

Green means eligible to order or refer.

Enrollment records 1

Specialty

Physician Assistant

Education

University of Southern California Keck School of Medicine, 2005

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Align Spine CenterGroup PAC ID 3375884679, 7 clinicians

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Physician Assistant

State licenses

Practice roles

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.

• Align Spine Center

  • Orthopaedic Surgery Physician
  • Irvine, CA
  • NPI 1689146946
  Medicare reassignment Care Compare group
• Providence Medical Foundation

  • Family Medicine Physician
  • Brea, CA
  • NPI 1871607762
  Medicare reassignment
• Providence Medical Foundation

  • Surgery Physician
  • Eureka, CA
  • NPI 1477790517
  NPD
• Spine and Pain Institute of Orange County, Inc.

  • Orthopaedic Surgery Physician
  • Irvine, CA
  • NPI 1609145127
  NPD (past)
• St Jude Hospital Inc

  • General Acute Care Hospital
  • Fullerton, CA
  • NPI 1194926279
  NPD (past)

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

{
    "created_epoch": "1179446400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1781654400000",
    "number": "1265640734",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "113 WATERWORKS WAY STE 240",
            "city": "IRVINE",
            "state": "CA",
            "postal_code": "926183175",
            "telephone_number": "949-340-9622",
            "fax_number": "949-528-3969"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "113 WATERWORKS WAY STE 240",
            "city": "IRVINE",
            "state": "CA",
            "postal_code": "926183175",
            "telephone_number": "949-340-9622",
            "fax_number": "949-528-3969"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "GREENFIELD",
        "first_name": "TENNILLE",
        "credential": "PA-C",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2007-05-18",
        "last_updated": "2026-06-17",
        "certification_date": "2026-06-17",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "CA",
            "license": "PA17945",
            "primary": false
        },
        {
            "code": "363AS0400X",
            "taxonomy_group": "",
            "desc": "Physician Assistant, Surgical",
            "state": "CA",
            "license": "PA17945",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "LICENSE",
            "identifier": "PA17945",
            "state": "CA"
        }
    ],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "tgreenfield1177969@oc.providencedirect.org",
            "affiliation": "N",
            "address_1": "113 Waterworks Way Ste 240",
            "city": "Irvine",
            "state": "CA",
            "country_code": "US",
            "postal_code": "926183175",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

• Laurence Frederic Greenberg, MD
• Victoria E Greenberg, NP
• Yan Zhang Greenberg
• John Christopher Greene, D.C.
• Megan Marie Greene, PTA
• Glendon Hutchison Greenia
• Kiefer Greenspan
• Greenway Med Aesthetics
• Mareen Greenway, M.D
• Barbara Greenwell, APRN

• Surgical Physician Assistant in Irvine, CA
• Providers in Irvine, CA by specialty
• Surgical Physician Assistant in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 17, 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.