Olivia Brosnahan

Primary specialty

Surgical Physician AssistantTaxonomy code 363AS0400X

Practice address

241 North Rd
Poughkeepsie, NY 12601-1154

Phone

(845) 483-5000

NPI assigned

May 10, 2019

Sex

Female

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 1

Other names 1

• Olivia Pelletier Former name

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, 2019

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Westchester Medical Center Advanced Physician Services PCGroup PAC ID 3173660776, 879 clinicians

North Shore-Lij Medical PCGroup PAC ID 3375701568, 6,374 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Westchester Medical Center Hospital, Valhalla, NY, CCN 330234
• Northern Westchester Hospital Hospital, Mount Kisco, NY, CCN 330162

Merit-based Incentive Payment System (MIPS)

Final score

75 of 100Reported as group

Medicare enrollment (NPD)

Enrolled

Credentials

Physician Assistant

Practice roles

Locations

Networks

• Healthfirst Medicare Network H9678
• Healthfirst Medicare Network H5989
• Healthfirst Medicare Network H3359
• Healthfirst Medicare Network H1722

Interoperability endpoints

• Direct secure messaging: opelletier69606@northwell.direct-ci.com
• FHIR API: https://fhir-myrecord.cerner.com/r4/0e5efebe-b60c-458e-971a-ee39e08a2178/

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.

• North Shore-Lij Medical PC

  • Urology Physician
  • Great Neck, NY
  • NPI 1053688572
  Medicare reassignment Care Compare group
• Westchester Medical Center Advanced Physician Services, PC

  • Surgery Physician
  • Valhalla, NY
  • NPI 1912131392
  Medicare reassignment Care Compare group
• North Shore - Lij Medical PC

  • Internal Medicine Physician
  • New Hyde Park, NY
  • NPI 1790043479
  NPD
• Westchester Medical Center Advanced Physician Services PC

  • Anesthesiology Physician
  • Valhalla, NY
  • NPI 1740687458
  NPD
• Westchester Medical Center

  • General Acute Care Hospital
  • Valhalla, NY
  • NPI 1023286184
  NPD (past)

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

• Northern Westchester Hospital Association

  • Medicare Defined Swing Bed Hospital Unit
  • Mount Kisco, NY
  • NPI 1396178356
  Care Compare affiliation
• Northern Westchester Hospital Association

  • General Acute Care Hospital
  • Mount Kisco, NY
  • NPI 1912992215
  Care Compare affiliation
• Westchester County Health Care Corporation

  • General Acute Care Hospital
  • Valhalla, NY
  • NPI 1932280666
  Care Compare affiliation

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

{
    "created_epoch": "1557446400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1763424000000",
    "number": "1356907836",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "19 BRADHURST AVE STE 3100N",
            "city": "HAWTHORNE",
            "state": "NY",
            "postal_code": "105322140",
            "telephone_number": "914-909-9018",
            "fax_number": "914-909-9028"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "241 NORTH RD",
            "city": "POUGHKEEPSIE",
            "state": "NY",
            "postal_code": "126011154",
            "telephone_number": "845-483-5000"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "400 E Main St",
            "address_purpose": "LOCATION",
            "city": "Mount Kisco",
            "state": "NY",
            "postal_code": "105493477",
            "country_code": "US",
            "telephone_number": "914-666-1200",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "BROSNAHAN",
        "first_name": "OLIVIA",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2019-05-10",
        "last_updated": "2025-11-18",
        "certification_date": "2025-11-18",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363AS0400X",
            "taxonomy_group": "",
            "desc": "Physician Assistant, Surgical",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "NYS LICENSE",
            "identifier": "023650",
            "state": "NY"
        }
    ],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "OLIVIA",
            "last_name": "PELLETIER",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

• Michael Bromley, MD
• Francine H Brooks, MD
• Rene Brooks, RN
• Robert Earl Brooks
• Stephen Brooks
• Nicola Andrea Simone Broughton, FNP
• Julia Flannery Brower, CASAC ADVANCED COUNS
• Lori Brown-Halbert, FNP
• Feona Brown
• Heather Lynn Brown, RN, NNP-BC

• Surgical Physician Assistant in Poughkeepsie, NY
• Providers in Poughkeepsie, NY by specialty
• Surgical Physician Assistant in New York

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