Christopher George Larsen, M.D.

Primary specialty

Orthopaedic Hand Surgery PhysicianTaxonomy code 207XS0106X

License

316506 Issued in NY

Practice address

45 Park Ave
Bay Shore, NY 11706-7308

Phone

(631) 376-0700

Fax

(631) 376-0102

NPI assigned

Apr 3, 2017

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: Yes

Green means eligible to order or refer.

Enrollment records 1

Specialty

Orthopedic Surgery

Education

Loyola University of Chicago, Stritch School of Medicine, 2017

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

CHS Physician Partners PCGroup PAC ID 7618955667, 739 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Good Samaritan Hospital Medical Center Hospital, West Islip, NY, CCN 330286
• St Charles Hospital Hospital, Port Jefferson, NY, CCN 330246

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Locations

Networks

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

Interoperability endpoints

• Direct secure messaging: clarsen150859@direct-chsli.net

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.

• CHS Physician Partners, PC

  • Interventional Cardiology Physician
  • Fresh Meadows, NY
  • NPI 1407089345
  Medicare reassignment Care Compare group NPD
• CHS Physician Partners, P.C

  • Cardiovascular Disease Physician
  • Roslyn, NY
  • NPI 1164585725
  NPD

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

• Good Samaritan Hospital Medical Center

  • General Acute Care Hospital
  • West Islip, NY
  • NPI 1902865355
  Care Compare affiliation
• St Charles Hospital Corp

  • General Acute Care Hospital
  • Port Jefferson, NY
  • NPI 1164481529
  Care Compare affiliation

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

{
    "created_epoch": "1491177600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1778716800000",
    "number": "1124550538",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "45 PARK AVE",
            "city": "BAY SHORE",
            "state": "NY",
            "postal_code": "117067308",
            "telephone_number": "631-376-0700",
            "fax_number": "631-376-0102"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "45 PARK AVE",
            "city": "BAY SHORE",
            "state": "NY",
            "postal_code": "117067308",
            "telephone_number": "631-376-0700",
            "fax_number": "631-376-0102"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "LARSEN",
        "first_name": "CHRISTOPHER",
        "middle_name": "GEORGE",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2017-04-03",
        "last_updated": "2026-05-14",
        "certification_date": "2026-05-14",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207XS0106X",
            "taxonomy_group": "",
            "desc": "Orthopaedic Surgery, Hand Surgery",
            "state": "NY",
            "license": "316506",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Stephen Constantine Landell, DNP, CRNA, RN
• Matthew Ryan Lapinta
• Kristy Maria Lappe, LMSW
• Danielle Lara, L.P.N.
• Christopher Larose
• Kristin Elizabeth Lasko, MA
• Michael Joseph Lau, M.D.
• Michael Laucella, M.D.
• Laura Coudrey, M.D., P.C.
• Laura E Asner CSW PC

• Orthopaedic Hand Surgery Physician in Bay Shore, NY
• Providers in Bay Shore, NY by specialty
• Orthopaedic Hand Surgery Physician in New York

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 14, 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.