Mary P Shierly, PA

Primary specialty

Physician AssistantTaxonomy code 363A00000X

License

014042 Issued in NY

Practice address

35 Empire State Blvd
Castleton on Hudson, NY 12033-9777

Phone

(518) 477-2167

NPI assigned

Jul 6, 2010

Sex

Female

Sole proprietor

No

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

Specialties & licenses 2

Addresses

Other identifiers 1

Medicare fee-for-service enrollment

Enrolled in NY

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, 2010

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

Mary Imogene Bassett HospitalGroup PAC ID 3779488325, 780 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Aurelia Osborn Fox Memorial Hospital Hospital, Oneonta, NY, CCN 330085

Medicare enrollment (NPD)

Enrolled

Credentials

Physician Assistant

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: mshierly557646@bassett.direct-ci.net

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.

• Mary Imogene Bassett Hospital

  • Multi-Specialty Clinic/Center
  • Cooperstown, NY
  • NPI 1083664221
  Medicare reassignment Care Compare group NPD
• Mary Imogene Bassett Hospital

  • Specialty Pharmacy
  • Oneonta, NY
  • NPI 1174419196
  NPD

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

• Aurelia Osborn Fox Memorial Hospital Society

  • General Acute Care Hospital
  • Oneonta, NY
  • NPI 1578529954
  Care Compare affiliation

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

{
    "created_epoch": "1278374400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1773360000000",
    "number": "1831401983",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "6 WELLNESS WAY STE 201",
            "city": "LATHAM",
            "state": "NY",
            "postal_code": "121102156"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "35 EMPIRE STATE BLVD",
            "city": "CASTLETON ON HUDSON",
            "state": "NY",
            "postal_code": "120339777",
            "telephone_number": "518-477-2167"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "SHIERLY",
        "first_name": "MARY",
        "middle_name": "P",
        "credential": "PA",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2010-07-06",
        "last_updated": "2026-03-13",
        "certification_date": "2026-03-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "MA",
            "license": "PA4011",
            "primary": false
        },
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "NY",
            "license": "014042",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "03532432",
            "state": "NY"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Jessica Pochily, COTA
• Linda Ann Rademakers, PT
• J Darcy Sawyer, LPN
• Anthony Peter Scanu, LMT
• Alyssa Maria Schaffer, MSED CCC-SLP
• Yen Vu Sidoti
• Carly F Smith
• Jennifer Sober, LCSW
• Rebecca Stewart, MSED
• Samantha Mary Teater, CCC-SLP

• Physician Assistant in Castleton on Hudson, NY
• Providers in Castleton on Hudson, NY by specialty
• Physician Assistant in New York

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