William Michael Gassmann, MS RN NPP

Primary specialty

Psychiatric/Mental Health Nurse PractitionerTaxonomy code 363LP0808X

License

401059 Issued in NY

Practice address

2 Coulter Rd
Clifton Springs, NY 14432-1122

Phone

(315) 462-1050

Fax

(315) 462-0145

NPI assigned

Nov 21, 2007

Sex

Male

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

Other, 2006

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

Clifton Springs Sanitarium CoGroup PAC ID 5092704809, 230 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Clifton Springs Hospital and Clinic Hospital, Clifton Springs, NY, CCN 330265
• Rochester General Hospital Hospital, Rochester, NY, CCN 330125

Merit-based Incentive Payment System (MIPS)

Final score

96.62 of 100Reported as apm

Quality

74.51

Promoting interoperability

100

Improvement activities

40

Medicare enrollment (NPD)

Enrolled

Credentials

Master of Science, Nurse Practitioner, Registered Nurse

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: wgassmann238127@direct.rochesterregional.org

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

• Clifton Springs Sanitarium Co

  dba Clifton Springs Hospital and Clinic

  • General Acute Care Hospital
  • Clifton Springs, NY
  • NPI 1366505463
  Medicare reassignment Care Compare group NPD
• Behavioral Health Network, Inc.

  dba Rochester Mental Health Center

  • Mental Health Clinic/Center (Including Community Mental Health Center)
  • Rochester, NY
  • NPI 1093812729
  Medicare reassignment NPD
• Rochester General Hospital

  dba Rochester General Medical Groups

  • Family Medicine Physician
  • Rochester, NY
  • NPI 1356412712
  Medicare reassignment NPD
• The Unity Hospital of Rochester

  • General Acute Care Hospital
  • Rochester, NY
  • NPI 1760421713
  Medicare reassignment NPD
• University of Rochester

  • Internal Medicine Physician
  • Rochester, NY
  • NPI 1710226824
  Medicare reassignment NPD
• Rochester General Hospital

  • General Acute Care Hospital
  • Rochester, NY
  • NPI 1255360517
  NPD
• The Unity Hospital of Rochester

  dba Unity Physician Services

  • General Acute Care Hospital
  • Rochester, NY
  • NPI 1457395766
  NPD
• University of Rochester

  dba Strong Memorial Hospital-University of Rochester

  • Community/Retail Pharmacy
  • Rochester, NY
  • NPI 1598476269
  NPD
• University of Rochester

  dba Strong Memorial Hospital MD Group

  • Internal Medicine Physician
  • Rochester, NY
  • NPI 1821152588
  NPD

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

• Clifton Springs Sanitarium Co

  dba Clifton Springs Hospital and Clinic

  • General Acute Care Hospital
  • Clifton Springs, NY
  • NPI 1366505463
  Care Compare affiliation

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

{
    "created_epoch": "1195603200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1739923200000",
    "number": "1033390885",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "315 SCIENCE PARKWAY",
            "address_2": "UNIVERSITY OF ROCHESTER STRONG MEMORIAL HOSPITAL",
            "city": "ROCHESTER",
            "state": "NY",
            "postal_code": "14620",
            "telephone_number": "585-279-7825",
            "fax_number": "585-256-1984"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2 COULTER RD",
            "city": "CLIFTON SPRINGS",
            "state": "NY",
            "postal_code": "144321122",
            "telephone_number": "315-462-1050",
            "fax_number": "315-462-0145"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "GASSMANN",
        "first_name": "WILLIAM",
        "middle_name": "MICHAEL",
        "name_prefix": "Mr.",
        "credential": "MS RN NPP",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2007-11-21",
        "last_updated": "2025-02-19",
        "certification_date": "2025-02-19",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "163W00000X",
            "taxonomy_group": "",
            "desc": "Registered Nurse",
            "state": "NY",
            "license": "4929851",
            "primary": false
        },
        {
            "code": "363LP0808X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Psychiatric/Mental Health",
            "state": "NY",
            "license": "401059",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Julie W Foust, MACCC-SLP
• Diana Fowler
• Abbey M Francis
• Jessica French
• Elizabeth A Garrett, REGISTERED NURSE
• Debra J Gates, NURSE PRACTITIONER A
• Maribeth Faith Gee, PT, DPT
• Sharry L Gibbs
• Suzanne E Giovenco
• Yvonne Marie Goldman, RNFA

• Psychiatric/Mental Health Nurse Practitioner in Clifton Springs, NY
• Providers in Clifton Springs, 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 Feb 19, 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.