Katharine Walser, PMHNP

Primary specialty

Psychiatric/Mental Health Nurse PractitionerTaxonomy code 363LP0808X

License

163WP0808X Issued in NY

Practice address

29 E Cayuga St
Oswego, NY 13126-1241

Phone

(315) 326-4100

NPI assigned

Aug 9, 2024

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

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

Nurse Practitioner

Education

State University of Ny Upstate Medical University, 2022

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Oswego HospitalGroup PAC ID 4981686045, 59 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Oswego Hospital Hospital, Oswego, NY, CCN 330218

Medicare enrollment (NPD)

Enrolled

State licenses

Practice roles

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.

• Oswego Hospital

  • General Acute Care Hospital
  • Oswego, NY
  • NPI 1871678458
  Medicare reassignment Care Compare group NPD (past)
• Oswego Hospital

  • Institutional Pharmacy
  • Oswego, NY
  • NPI 1780629907
  NPD (past)

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

• Oswego Hospital

  • General Acute Care Hospital
  • Oswego, NY
  • NPI 1871678458
  Care Compare affiliation

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

{
    "created_epoch": "1723161600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1781740800000",
    "number": "1023849320",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "29 E CAYUGA ST",
            "city": "OSWEGO",
            "state": "NY",
            "postal_code": "131261241",
            "telephone_number": "315-326-4100"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "29 E CAYUGA ST",
            "city": "OSWEGO",
            "state": "NY",
            "postal_code": "131261241",
            "telephone_number": "315-326-4100"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "WALSER",
        "first_name": "KATHARINE",
        "name_prefix": "Ms.",
        "credential": "PMHNP",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2024-08-09",
        "last_updated": "2026-06-18",
        "certification_date": "2026-06-18",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LP0808X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Psychiatric/Mental Health",
            "state": "NY",
            "license": "163WP0808X",
            "primary": true
        },
        {
            "code": "163WP0808X",
            "taxonomy_group": "",
            "desc": "Registered Nurse, Psychiatric/Mental Health",
            "state": "CA",
            "license": "95380920",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Ann Elizabeth Wallace
• Jamie Wallace, NP
• Karacin Wallace
• Lynne M Wallace, RN
• Natasha Waloven, NP
• Chelsea Christina Walters, COTA/L
• Amy Walts
• Jessica Ariel Wanke, OTA
• Warner Physical Therapy PC
• Amy C Warner

• Psychiatric/Mental Health Nurse Practitioner in Oswego, NY
• Providers in Oswego, NY by specialty
• Psychiatric/Mental Health Nurse Practitioner in New York

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 18, 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.