William Larsen, FNP

Primary specialty

Family Nurse PractitionerTaxonomy code 363LF0000X

License

339752 Issued in NY

Practice address

905 Hanshaw Rd
Ithaca, NY 14850-1549

Phone

(607) 339-0670

Fax

(607) 319-5524

NPI assigned

Jun 16, 2015

Sex

Male

Sole proprietor

Yes

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

Specialties & licenses 1

Addresses

Other identifiers 3

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

Other, 2015

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Cayuga Medical Associates PCGroup PAC ID 6709897960, 278 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Cayuga Medical Center at Ithaca Hospital, Ithaca, NY, CCN 330307

Merit-based Incentive Payment System (MIPS)

Final score

94.27 of 100Reported as apm

Quality

82.87

Promoting interoperability

100

Improvement activities

40

Medicare enrollment (NPD)

Enrolled

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: william.larsen.1@18477.direct.athenahealth.com
• Direct secure messaging: wlarsen20795@direct.xtensys.com
• FHIR API: https://api.platform.athenahealth.com/17251/brand/1/csg/1/fhir/r4

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.

• Cayuga Medical Associates, PC

  • Internal Medicine Physician
  • Ithaca, NY
  • NPI 1679525455
  Medicare reassignment Care Compare group NPD
• Reach Medical PLLC

  • General Practice Physician
  • Ithaca, NY
  • NPI 1831601533
  Medicare reassignment NPD
• The Reach Project Inc

  • General Practice Physician
  • Ithaca, NY
  • NPI 1124648316
  NPD

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

• Cayuga Medical Center at Ithaca

  • General Acute Care Hospital
  • Ithaca, NY
  • NPI 1962422733
  Care Compare affiliation

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

{
    "created_epoch": "1434412800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1661212800000",
    "number": "1124409099",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "905 HANSHAW RD",
            "city": "ITHACA",
            "state": "NY",
            "postal_code": "148501549",
            "telephone_number": "607-339-0670",
            "fax_number": "607-319-5524"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "905 HANSHAW RD",
            "city": "ITHACA",
            "state": "NY",
            "postal_code": "148501549",
            "telephone_number": "607-339-0670",
            "fax_number": "607-319-5524"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "404 N Cayuga St",
            "address_purpose": "LOCATION",
            "city": "Ithaca",
            "state": "NY",
            "postal_code": "148504219",
            "country_code": "US",
            "telephone_number": "607-277-0969 x12",
            "fax_number": "607-277-3242",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "LARSEN",
        "first_name": "WILLIAM",
        "name_prefix": "Mr.",
        "credential": "FNP",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2015-06-16",
        "last_updated": "2022-08-23",
        "certification_date": "2022-08-23",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LF0000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Family",
            "state": "NY",
            "license": "339752",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "MEDICAID GROUP",
            "identifier": "2734852",
            "state": "NY"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "TOTAL CARE GROUP",
            "identifier": "1088",
            "state": "NY"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "04173960",
            "state": "NY"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Tiffany Roberts Lanza, APRN, CPNP-PC
• Jennifer Lee Lapenna, LCSW
• Julia L. Lapp, PLMHC
• Alexandra Laramy
• Susan Laratta
• Lance E Lauchle, LPT
• Mary Lauppe, MA
• Laura a. Staubes BSN-RN, PLLC
• Robert Laurentz, PSY.D.
• Debra Lavigne, NP

• Family Nurse Practitioner in Ithaca, NY
• Providers in Ithaca, NY by specialty
• Family Nurse Practitioner in New York

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 23, 2022; 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.