Mark K Hirschhorn, MD

Primary specialty

SpecialistTaxonomy code 174400000X

License

014906 Issued in ME

Practice address

24 W Cole Rd
Biddeford, ME 04005-9404

Phone

(207) 283-1602

Fax

(207) 282-6835

NPI assigned

May 5, 2006

Sex

Male

Sole proprietor

No

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.

• Down East Community Hospital

  • Critical Access Hospital
  • Machias, ME
  • NPI 1528087004

  ME

  Medicare reassignment Care Compare group NPD
• Down East Community Hospital

  • General Acute Care Hospital
  • Machias, ME
  • NPI 1689670242

  ME

  Medicare reassignment Care Compare group NPD
• Mainehealth

  • Psychiatric Hospital
  • Westbrook, ME
  • NPI 1790265502

  ME

  Medicare reassignment NPD
• Down East Community Hospital

  • Medicare Defined Swing Bed Hospital Unit
  • Machias, ME
  • NPI 1336587542
  Care Compare group NPD
• Down East Community Hospital

  • Certified Registered Nurse Anesthetist
  • Machias, ME
  • NPI 1700883139
  Care Compare group
• Down East Community Hospital

  • Family Medicine Physician
  • Milbridge, ME
  • NPI 1851397475
  Care Compare group
• Down East Community Hospital

  • Family Medicine Physician
  • Jonesport, ME
  • NPI 1922550417
  Care Compare group
• Mainehealth

  • Geriatric Medicine (Internal Medicine) Physician
  • Portland, ME
  • NPI 1164610242
  NPD

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

• Calais Community Hospital

  • Critical Access Hospital
  • Calais, ME
  • NPI 1922001049

  Hospital

  Care Compare affiliation
• Down East Community Hospital

  • Critical Access Hospital
  • Machias, ME
  • NPI 1528087004

  Hospital

  Care Compare affiliation
• Eastern Maine Medical Center

  • General Acute Care Hospital
  • Bangor, ME
  • NPI 1790789147

  Hospital

  Care Compare affiliation

Specialty

General SurgeryAlso: Urology

Education

Columbia University College of Physicians and Surgeons, 1989

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Down East Community Hospital 25 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Down East Community Hospital Hospital, Machias, ME, CCN 201311
• Calais Community Hospital Hospital, Calais, ME, CCN 201305
• Northern Light Eastern Maine Medical Center Hospital, Bangor, ME, CCN 200033

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: Yes

Green means eligible to order or refer.

Enrollment records 1

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• FHIR API: https://fhir-myrecord.cerner.com/r4/6b68bc92-a317-4686-a79a-fbb1b58a509e/

The complete NPPES record for this NPI in the NPI Registry API format, last updated by the provider on Jul 13, 2026.

{
    "created_epoch": "1146787200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1629026240",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "24 W COLE RD",
            "city": "BIDDEFORD",
            "state": "ME",
            "postal_code": "040059404",
            "telephone_number": "207-283-1602",
            "fax_number": "207-282-6835"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "24 W COLE RD",
            "city": "BIDDEFORD",
            "state": "ME",
            "postal_code": "040059404",
            "telephone_number": "207-283-1602",
            "fax_number": "207-282-6835"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "HIRSCHHORN",
        "first_name": "MARK",
        "middle_name": "K",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-05-05",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "174400000X",
            "taxonomy_group": "",
            "desc": "Specialist",
            "state": "ME",
            "license": "014906",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Barbara Kathleen Hester, LCPC-C
• Joseph David Heward, OD
• Sara E Hicks, CRNA
• Andrew G. Hinkens, MD
• Kellen Gary Hipp, D.O
• Edward J. Hirst, D. M. D.
• Molly Ford Hoadley, LCPC LMFT LADC CSS
• Heather Hobson, LCPC-C
• Andrew Joseph Hodge
• Samantha Hodgins, NP

• All providers in Biddeford, ME
• Specialist in Maine

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 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.