John F Cassidy IV, PA-C

Primary specialty

Physician AssistantTaxonomy code 363A00000X

License

PA389 Issued in ME

Practice address

30 Boynton St
Eastport, ME 04631-1306

Phone

(207) 853-6001

NPI assigned

Sep 13, 2006

Last updated

Feb 4, 2026By 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

Other identifiers 2

Medicare fee-for-service enrollment

Enrolled in ME

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, 1992

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Eastport Health Care, IncGroup PAC ID 3577592880, 12 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Calais Community Hospital Hospital, Calais, ME, CCN 201305
• Down East Community Hospital Hospital, Machias, ME, CCN 201311
• Northern Light Eastern Maine Medical Center Hospital, Bangor, ME, CCN 200033
• Eastport Memorial Nursing Home Nursing home, Eastport, ME, CCN 205146

Merit-based Incentive Payment System (MIPS)

Final score

84.1 of 100Reported as group

Quality

64.8

Promoting interoperability

96

Improvement activities

40

Cost

68.87

Medicare enrollment (NPD)

Enrolled

Credentials

Physician Assistant

State licenses

Practice roles

Locations

Interoperability endpoints

• FHIR API: https://api.platform.athenahealth.com/8309/brand/1/csg/1/fhir/r4
• Direct secure messaging: john.cassidy.1@8309.direct.athenahealth.com

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.

• Eastport Health Care, Inc.

  • Federally Qualified Health Center (FQHC)
  • Eastport, ME
  • NPI 1093752917
  Medicare reassignment Care Compare group NPD
• Eastport Memorial Hospital

  dba Eastport Memorial Nursing Home

  • Skilled Nursing Facility
  • Eastport, ME
  • NPI 1912003328
  NPD (past)

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

• Calais Community Hospital

  • Critical Access Hospital
  • Calais, ME
  • NPI 1922001049
  Care Compare affiliation
• Down East Community Hospital

  • Critical Access Hospital
  • Machias, ME
  • NPI 1528087004
  Care Compare affiliation
• Eastern Maine Medical Center

  • General Acute Care Hospital
  • Bangor, ME
  • NPI 1790789147
  Care Compare affiliation
• Eastport Memorial Hospital

  dba Eastport Memorial Nursing Home

  • Skilled Nursing Facility
  • Eastport, ME
  • NPI 1912003328

  Nursing home

  Care Compare affiliation

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

{
    "created_epoch": "1158105600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1770163200000",
    "number": "1891890166",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "30 BOYNTON ST",
            "city": "EASTPORT",
            "state": "ME",
            "postal_code": "046311306",
            "telephone_number": "207-853-6001"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "30 BOYNTON ST",
            "city": "EASTPORT",
            "state": "ME",
            "postal_code": "046311306",
            "telephone_number": "207-853-6001"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "CASSIDY",
        "first_name": "JOHN",
        "middle_name": "F",
        "name_suffix": "IV",
        "credential": "PA-C",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-09-13",
        "last_updated": "2026-02-04",
        "certification_date": "2026-02-04",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "ME",
            "license": "PA389",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "MEDICARE GROUP NUMBER",
            "identifier": "MM9086",
            "state": "ME"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "259290099",
            "state": "ME"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• David E Brass, LADC
• Brian C Brooks
• Jan M Brown, CADC
• Calais Regional Hospital (Eastport Physical Therapy)
• Tammy Carr
• Charlotte School
• Dennysville School Department
• Kathi M Dimiceli, LCSW
• Jennifer Joy Doucette, PMHNP
• Susan Marie Drew, RDH

• Physician Assistant in Eastport, ME
• Providers in Eastport, ME by specialty
• Physician Assistant in Maine

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Feb 4, 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.