Nathan Stephen Larsen, RN

Primary specialty

Certified Registered Nurse AnesthetistTaxonomy code 367500000X

License

985480 Issued in NY

Practice address

100 N Academy Ave
Danville, PA 17822-7848

Phone

(570) 271-6763

NPI assigned

Sep 26, 2023

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

Enrollment records 1

Specialty

Certified Registered Nurse Anesthetist (Crna)

Education

Other, 2025

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Mary Imogene Bassett HospitalGroup PAC ID 3779488325, 780 clinicians

Riverside Associates in Anesthesia PCGroup PAC ID 5193792844, 26 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Aurelia Osborn Fox Memorial Hospital Hospital, Oneonta, NY, CCN 330085
• Our Lady of Lourdes Memorial Hospital, Inc Hospital, Binghamton, NY, CCN 330011
• Bassett Healthcare Hospital, Cooperstown, NY, CCN 330136

Medicare enrollment (NPD)

Enrolled

Credentials

Registered Nurse

State licenses

Practice roles

Locations

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.

• Mary Imogene Bassett Hospital

  • Multi-Specialty Clinic/Center
  • Cooperstown, NY
  • NPI 1083664221
  Medicare reassignment Care Compare group NPD
• Riverside Associates in Anesthesia PC

  • Anesthesiology Physician
  • Binghamton, NY
  • NPI 1740276203
  Medicare reassignment Care Compare group NPD
• 360 Anesthesia PLLC

  • Anesthesiology Physician
  • Wilkes Barre, PA
  • NPI 1811637366

  NY

  Medicare reassignment
• Mary Imogene Bassett Hospital

  • Specialty Pharmacy
  • Oneonta, NY
  • NPI 1174419196
  NPD

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

• Aurelia Osborn Fox Memorial Hospital Society

  • General Acute Care Hospital
  • Oneonta, NY
  • NPI 1578529954
  Care Compare affiliation
• Mary Imogene Bassett Hospital

  • Rural Acute Care Hospital
  • Cooperstown, NY
  • NPI 1780600577
  Care Compare affiliation
• Our Lady of Lourdes Memorial Hospital Inc.

  • General Acute Care Hospital
  • Binghamton, NY
  • NPI 1629087580
  Care Compare affiliation

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

{
    "created_epoch": "1695686400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1765324800000",
    "number": "1821877150",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "570 MAIN ST",
            "city": "BENTON",
            "state": "PA",
            "postal_code": "178147848",
            "telephone_number": "570-316-9049"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "100 N ACADEMY AVE",
            "city": "DANVILLE",
            "state": "PA",
            "postal_code": "178227848",
            "telephone_number": "570-271-6763"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1 Atwell Rd",
            "address_purpose": "LOCATION",
            "city": "Cooperstown",
            "state": "NY",
            "postal_code": "13326",
            "country_code": "US",
            "telephone_number": "607-547-3456",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "LARSEN",
        "first_name": "NATHAN",
        "middle_name": "STEPHEN",
        "credential": "RN",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2023-09-26",
        "last_updated": "2025-12-10",
        "certification_date": "2025-12-10",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "367500000X",
            "taxonomy_group": "",
            "desc": "Nurse Anesthetist, Certified Registered",
            "state": "NY",
            "license": "985480",
            "primary": true
        },
        {
            "code": "163W00000X",
            "taxonomy_group": "",
            "desc": "Registered Nurse",
            "state": "PA",
            "license": "RN728840",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Xuan Hanh Thanh Lam, DNP, CRNA
• Richard L. Lambert, M.D.
• Gayle Lanphier
• Justin Nicholas Laridaen, MD
• Romeo Wildon Aradani Laroya II, M.D.
• Corinne Larson, CRNA
• Linda J. Larson, LCSW
• Sonia Lassen, PSYD, LPC, NCC, ACS
• Taroob Jawad Latef, MD
• Cortlynn Abagail Latsha

• Certified Registered Nurse Anesthetist in Danville, PA
• Providers in Danville, PA by specialty
• Certified Registered Nurse Anesthetist in Pennsylvania

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Dec 10, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
• 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.