Nathan Altner, PA-C

Primary specialty

Physician AssistantTaxonomy code 363A00000X

License

5601011303 Issued in MI

Practice address

1223 Mercy Dr
Muskegon, MI 49444-1829

Phone

(231) 672-3500

NPI assigned

Sep 27, 2022

Last updated

Sep 18, 2025By the provider in NPPES

Sex

Male

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 MI

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

Other, 2022

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Mercy Health Westshore Cardiology ServicesGroup PAC ID 5991932360, 36 clinicians

Iha Health Services CorporationGroup PAC ID 2466351440, 1,149 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Trinity Health Muskegon Hospital Hospital, Muskegon, MI, CCN 230066
• Mercy Health Lakeshore Campus Hospital, Shelby, MI, CCN 231320

Medicare enrollment (NPD)

Enrolled

Credentials

Physician Assistant

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: naltner2121934@direct.trinity-health.org

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.

• Iha Health Services Corporation

  dba IHA Canton Obstetrics and Gynecology

  • Obstetrics & Gynecology Physician
  • Canton, MI
  • NPI 1457408965
  Medicare reassignment Care Compare group
• Mercy Health Westshore Cardiology Services

  dba Trinity Health Medical Group

  • Cardiovascular Disease Physician
  • Muskegon, MI
  • NPI 1336573393
  Medicare reassignment Care Compare group
• Lake Michigan Emergency Specialists, PLLC

  • Emergency Medicine Physician
  • Muskegon, MI
  • NPI 1124574520
  Medicare reassignment
• Iha Health Service Corporation

  dba Trinity Health IHA Medical Group OB/GYN Float

  • Obstetrics & Gynecology Physician
  • Ypsilanti, MI
  • NPI 1831053701
  NPD
• Iha Health Services Corporation

  dba IHA Hand Surgery

  • Orthopaedic Hand Surgery Physician
  • Ypsilanti, MI
  • NPI 1992109904
  NPD

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

• Mercy Health Partners

  dba MHP - Lakeshore Campus

  • Critical Access Hospital
  • Shelby, MI
  • NPI 1285662981
  Care Compare affiliation
• Mercy Health Partners

  dba Mercy Health Muskegon

  • General Acute Care Hospital
  • Muskegon, MI
  • NPI 1831132133
  Care Compare affiliation

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

{
    "created_epoch": "1664236800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1758153600000",
    "number": "1225752959",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "256 WESTOWN DR NW APT 305",
            "city": "WALKER",
            "state": "MI",
            "postal_code": "495343725"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1223 MERCY DR",
            "city": "MUSKEGON",
            "state": "MI",
            "postal_code": "494441829",
            "telephone_number": "231-672-3500"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "ALTNER",
        "first_name": "NATHAN",
        "credential": "PA-C",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2022-09-27",
        "last_updated": "2025-09-18",
        "certification_date": "2025-09-18",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "MI",
            "license": "5601011303",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Vernon William Allen, MSC LLPC
• Kenneth Richard Almas, PA-C
• Doaa Alnaggar, DDS
• Alpha Psychological Services of Western Michigan
• Elizabeth Ann Alsteens
• Maria Alvarado
• David Alexander Alves Sr.
• Ekow Damoah Amakye, DDS
• Theourrn Amalathasan, MD
• Amanda Family Inc

• Physician Assistant in Muskegon, MI
• Providers in Muskegon, MI by specialty
• Physician Assistant in Michigan

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 18, 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.