Aryon Michelle Nielsen, PA-C

Primary specialty

Medical Physician AssistantTaxonomy code 363AM0700X

License

PA65408 Issued in CA

Practice address

1095 Marshall Way
Placerville, CA 95667-5722

Phone

(253) 227-0379

NPI assigned

Dec 4, 2024

Sex

Female

Sole proprietor

No

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

Specialties & licenses 1

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

Specialty

Physician Assistant

Education

University of California, Davis School of Medicine, 2024

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Marshall Medical CenterGroup PAC ID 7517875859, 168 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Marshall Home Care Home health agency, Diamond Springs, CA, CCN 057019
• Marshall Medical Center Hospital, Placerville, CA, CCN 050254

Medicare enrollment (NPD)

Enrolled

Credentials

Physician Assistant

State licenses

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 and National Provider Directory roles.

• Marshall Medical Center

  • Family Medicine Physician
  • El Dorado Hills, CA
  • NPI 1114727377
  Medicare reassignment Care Compare group NPD
• Emergency Medicine Physician Partners of El Dorado County, Inc

  • Emergency Medicine Physician
  • Placerville, CA
  • NPI 1619278660
  Medicare reassignment NPD
• Marshall Medical Center

  dba Marshall Sierra Primary Medicine

  • Family Medicine Physician
  • Placerville, CA
  • NPI 1326286048
  NPD
• Marshall Medical Center

  dba Marshall Family Medicine Placerville

  • Family Medicine Physician
  • Placerville, CA
  • NPI 1962506097
  NPD (past)

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

• Marshall Medical Center

  • General Acute Care Hospital
  • Placerville, CA
  • NPI 1972503142
  Care Compare affiliation
• Marshall Medical Center

  dba Marshall Home Care

  • Home Health Agency
  • Diamond Springs, CA
  • NPI 1992705040
  Care Compare affiliation

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

{
    "created_epoch": "1733270400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1765065600000",
    "number": "1477369510",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1095 MARSHALL WAY STE 100",
            "city": "PLACERVILLE",
            "state": "CA",
            "postal_code": "956675722",
            "telephone_number": "530-626-2920"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1095 MARSHALL WAY",
            "city": "PLACERVILLE",
            "state": "CA",
            "postal_code": "956675722",
            "telephone_number": "253-227-0379"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "NIELSEN",
        "first_name": "ARYON",
        "middle_name": "MICHELLE",
        "name_prefix": "Mrs.",
        "credential": "PA-C",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2024-12-04",
        "last_updated": "2025-12-07",
        "certification_date": "2025-12-07",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363AM0700X",
            "taxonomy_group": "",
            "desc": "Physician Assistant, Medical",
            "state": "CA",
            "license": "PA65408",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Minh-Khang Eric Ngo, D.D.S.
• Tam-an Nguyen, O.D.
• Thanh Trang Thi Nguyen, MD
• Thienthy Nguyen, AMFT
• Nicholas D. Simopoulos MD Inc
• Nora Roman M.D. a Professional Corporation
• Rebecca C Norris, MS, IMFT 47645
• Kerrie Suzanne North-Calderon, PA C
• Leilani Norton, M.D.
• Michelle Renee Nowka

• Medical Physician Assistant in Placerville, CA
• Providers in Placerville, CA by specialty
• Medical Physician Assistant in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Dec 7, 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.