Zethariah Zielinski, DO

Primary specialty

Orthopaedic Surgery PhysicianTaxonomy code 207X00000X

License

DO4125 Issued in ME

Practice address

116 Northport Ave Ste 214
Belfast, ME 04915-6096

Phone

(207) 505-4398

Fax

(207) 560-9920

NPI assigned

Jun 8, 2020

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 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

Specialty

Orthopedic Surgery

Education

Other, 2020

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

MainehealthGroup PAC ID 7517860588, 2,616 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Mainehealth Waldo Hospital Hospital, Belfast, ME, CCN 201312

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Osteopathy

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.

• Mainehealth

  • Critical Access Hospital
  • Belfast, ME
  • NPI 1841397932
  Medicare reassignment Care Compare group NPD
• Mainehealth

  • Psychiatric Hospital
  • Westbrook, ME
  • NPI 1790265502
  Medicare reassignment
• Mainehealth

  • Community/Retail Pharmacy
  • Portland, ME
  • NPI 1013868181
  NPD
• Mainehealth

  • Otolaryngology Physician
  • Portland, ME
  • NPI 1649577768
  NPD
• Mainehealth

  • Clinic/Center
  • Portland, ME
  • NPI 1487346722
  NPD (past)

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

• Mainehealth

  • Critical Access Hospital
  • Belfast, ME
  • NPI 1841397932
  Care Compare affiliation

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

{
    "created_epoch": "1591574400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1756857600000",
    "number": "1053935833",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "116 NORTHPORT AVE STE 214",
            "city": "BELFAST",
            "state": "ME",
            "postal_code": "049156096",
            "telephone_number": "207-505-4398",
            "fax_number": "207-560-9920"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "116 NORTHPORT AVE STE 214",
            "city": "BELFAST",
            "state": "ME",
            "postal_code": "049156096",
            "telephone_number": "207-505-4398",
            "fax_number": "207-560-9920"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "4 Glen Cove Dr Ste 206",
            "address_purpose": "LOCATION",
            "city": "Rockport",
            "state": "ME",
            "postal_code": "048564239",
            "country_code": "US",
            "telephone_number": "207-301-5454",
            "fax_number": "207-301-5353",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "401 W Greenlawn Ave",
            "address_purpose": "LOCATION",
            "city": "Lansing",
            "state": "MI",
            "postal_code": "489102819",
            "country_code": "US",
            "telephone_number": "517-975-6000",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "ZIELINSKI",
        "first_name": "ZETHARIAH",
        "credential": "DO",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2020-06-08",
        "last_updated": "2025-09-03",
        "certification_date": "2025-09-03",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207X00000X",
            "taxonomy_group": "",
            "desc": "Orthopaedic Surgery",
            "state": "ME",
            "license": "DO4125",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Shyla Yerxa, LCSW
• Elizabeth Yori, N.D.
• Abby Marie Young, PHARMD
• Janneke T Zaadstr, P.T.
• Rachel Zaccaria, CNM

• Orthopaedic Surgery Physician in Belfast, ME
• Providers in Belfast, ME by specialty
• Orthopaedic Surgery Physician in Maine

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 3, 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.