Brian Lorenzen, FNP

Primary specialty

Family Nurse PractitionerTaxonomy code 363LF0000X

License

345684 Issued in NY

Practice address

1978 Crompond Rd
Cortlandt Manor, NY 10567-4111

Phone

(763) 797-2146

Fax

(914) 739-2185

NPI assigned

Aug 13, 2020

Sex

Male

Sole proprietor

No

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

Specialties & licenses 1

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, 2019

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Optum Medical Care PCGroup PAC ID 9931013240, 1,013 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Hudson Valley Hospital Center Hospital, Cortlandt Manor, NY, CCN 330267
• Putnam Hospital Center Hospital, Carmel, NY, CCN 330273

Medicare enrollment (NPD)

Enrolled

State licenses

Practice roles

Locations

Networks

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

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.

• Optum Medical Care, P.C.

  dba CareMount Medical, P.C.

  • Cardiovascular Disease Physician
  • Mount Kisco, NY
  • NPI 1982643003
  Medicare reassignment Care Compare group NPD
• Optum Medical Care, P.C.

  • Durable Medical Equipment & Medical Supplies
  • New Hyde Park, NY
  • NPI 1053190595
  NPD
• Mount Kisco Medical Group

  • Hematology (Internal Medicine) Physician
  • Fishkill, NY
  • NPI 1952356362
  NPD (past)

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

• Hudson Valley Hospital Center

  • General Acute Care Hospital
  • Cortlandt Manor, NY
  • NPI 1881659274
  Care Compare affiliation
• Putnam Hospital Center

  • General Acute Care Hospital
  • Carmel, NY
  • NPI 1972557379
  Care Compare affiliation

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

{
    "created_epoch": "1597276800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1782172800000",
    "number": "1154932036",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "25 BARKER ST APT 513",
            "city": "MOUNT KISCO",
            "state": "NY",
            "postal_code": "105491635",
            "telephone_number": "914-275-6772"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1978 CROMPOND RD",
            "city": "CORTLANDT MANOR",
            "state": "NY",
            "postal_code": "105674111",
            "telephone_number": "763-797-2146",
            "fax_number": "914-739-2185"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "25 Barker St Apt 513",
            "address_purpose": "LOCATION",
            "city": "Mount Kisco",
            "state": "NY",
            "postal_code": "105491635",
            "country_code": "US",
            "telephone_number": "914-275-6772",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "LORENZEN",
        "first_name": "BRIAN",
        "credential": "FNP",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2020-08-13",
        "last_updated": "2026-06-23",
        "certification_date": "2026-06-23",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LF0000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Family",
            "state": "NY",
            "license": "345684",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Lisa a. Milano,M.S.,R.D.,C.D.N.,LLC
• Little Steps Great Success LLC
• Living Life Home Care, Inc. (Comfort Keepers)
• Andrea Gilbert Lobo, PT, DPT
• Laurence Lonky, O.D.
• Joanne Loreto
• Mark Lovitz, PHARMD
• Katherine Craig Ma, MD
• Haydee M Magazino
• Bryce William Magee

• Family Nurse Practitioner in Cortlandt Manor, NY
• Providers in Cortlandt Manor, 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 Jun 23, 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.