Anne Marie Klassert, NP

Primary specialty

Adult Health Nurse PractitionerTaxonomy code 363LA2200X

License

F300922-1 Issued in NY

Practice address

University Hospital at Stony Brook
HSC T-9 RM 040
Stony Brook, NY 11794-0001

Phone

(631) 444-1205

Fax

(631) 444-7620

NPI assigned

Sep 20, 2005

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

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, 1993

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

Stony Brook Urology University Faculty Practice CorporationGroup PAC ID 3577454008, 38 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Suny/Stony Brook University Hospital Hospital, Stony Brook, NY, CCN 330393

Medicare enrollment (NPD)

Enrolled

Credentials

Nurse Practitioner

State licenses

Practice roles

Locations

Networks

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

Interoperability endpoints

• Direct secure messaging: anne.klassert@direct.stonybrookmedicine.edu

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.

• Stony Brook Urology, University Faculty Practice Corporation

  • Urology Physician
  • East Setauket, NY
  • NPI 1538114707
  Medicare reassignment Care Compare group NPD

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

• University Hospital at Stony Brook

  • General Acute Care Hospital
  • Southampton, NY
  • NPI 1033224704
  Care Compare affiliation
• University Hospital at Stony Brook

  • General Acute Care Hospital
  • Southampton, NY
  • NPI 1225507114
  Care Compare affiliation
• University Hospital at Stony Brook

  • Land Ambulance
  • Stony Brook, NY
  • NPI 1306620588

  Hospital

  Care Compare affiliation
• University Hospital at Stony Brook

  • General Acute Care Hospital
  • Greenport, NY
  • NPI 1881690691
  Care Compare affiliation
• University Hospital at Stony Brook

  • Clinic/Center
  • Greenport, NY
  • NPI 1932466604

  Hospital

  Care Compare affiliation
• University Hospital at Stony Brook

  • General Acute Care Hospital
  • Stony Brook, NY
  • NPI 1972523348
  Care Compare affiliation

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

{
    "created_epoch": "1127174400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1467448985",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "UNIVERSITY HOSPITAL AT STONY BROOK",
            "address_2": "HSC T-9 RM 040",
            "city": "STONY BROOK",
            "state": "NY",
            "postal_code": "117940001",
            "telephone_number": "631-444-1205",
            "fax_number": "631-444-7620"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "UNIVERSITY HOSPITAL AT STONY BROOK",
            "address_2": "HSC T-9 RM 040",
            "city": "STONY BROOK",
            "state": "NY",
            "postal_code": "117940001",
            "telephone_number": "631-444-1205",
            "fax_number": "631-444-7620"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "KLASSERT",
        "first_name": "ANNE",
        "middle_name": "MARIE",
        "name_prefix": "Mrs.",
        "credential": "NP",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2005-09-20",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LA2200X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Adult Health",
            "state": "NY",
            "license": "F300922-1",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "02322223",
            "state": "NY"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Daniel Scott Kirk, M.D., D.M.D.
• Melanie Grace Kirk
• Elayna Paige Kirsch, MD
• Mitchell G Kirsch, M.D.
• Alexander Kirschner
• Kevin H. Klayman, D.O.
• Edward A Klein, M.D.
• Fiana Klein, DO
• Robert Steven Kleyner, MD
• Jonathan Kneib, MD

• Adult Health Nurse Practitioner in Stony Brook, NY
• Providers in Stony Brook, NY by specialty
• Adult Health Nurse Practitioner in New York

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