Grace Ann Sillers, PA-C

Primary specialty

Physician AssistantTaxonomy code 363A00000X

License

60103 Issued in CA

Practice address

16200 Sand Canyon Ave
Irvine, CA 92618-3714

Phone

(949) 517-3010

NPI assigned

Sep 8, 2021

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

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

Merit-based Incentive Payment System (MIPS)

Final score

100 of 100Reported as group

Quality

96.39

Improvement activities

40

Medicare enrollment (NPD)

Enrolled

Credentials

Physician Assistant

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: gknerr343942@direct.llu.edu

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.

• Cep America - California

  • Emergency Medicine Physician
  • San Francisco, CA
  • NPI 1023063542
  Medicare reassignment
• Cep America - California

  • Emergency Medicine Physician
  • Santa Ana, CA
  • NPI 1548667843
  Medicare reassignment
• Emergency Physicians of Orange County

  • Emergency Medicine Physician
  • Newport Beach, CA
  • NPI 1912771569
  Medicare reassignment
• Newport Emergency Medical Group Inc

  • Medical Specialty Clinic/Center
  • Newport Beach, CA
  • NPI 1922061779
  Medicare reassignment
• Cep America - California

  • Emergency Medicine Physician
  • Anaheim, CA
  • NPI 1982078150
  NPD
• Cep America-California

  • Emergency Medicine Physician
  • Delano, CA
  • NPI 1598534216
  NPD

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

{
    "created_epoch": "1631059200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1759968000000",
    "number": "1851060453",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "16200 SAND CANYON AVE",
            "city": "IRVINE",
            "state": "CA",
            "postal_code": "926183714"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "16200 SAND CANYON AVE",
            "city": "IRVINE",
            "state": "CA",
            "postal_code": "926183714",
            "telephone_number": "949-517-3010"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "SILLERS",
        "first_name": "GRACE",
        "middle_name": "ANN",
        "credential": "PA-C",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2021-09-08",
        "last_updated": "2025-10-09",
        "certification_date": "2025-10-09",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "CA",
            "license": "60103",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Logan Alexander Siemers, PT, DPT
• Christopher Sigler, PARAMEDIC
• Amal Elia Sigrist, LMFT
• Geeta Sikand, RD
• Brita Siljander, RD, RDN
• Paige Silsby
• Alex Silva, M.A., BCBA
• Eduardo Silva
• Leeandrah Loren Silva
• Mariana G Silva

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

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Oct 9, 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.