Larson Greenfield, RN

Primary specialty

Certified Registered Nurse AnesthetistTaxonomy code 367500000X

License

APN.0996947-CRNA Issued in CO

Practice address

3702 Automation Way Ste 103
Fort Collins, CO 80525-5738

Phone

(970) 224-2985

NPI assigned

Nov 19, 2020

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 CO

Enrollment records 1

Specialty

Certified Registered Nurse Anesthetist (Crna)

Education

Other, 2020

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Sterling Anesthesia Associates LLCGroup PAC ID 3971956434, 14 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Sterling Regional Medcenter Hospital, Sterling, CO, CCN 060076

Medicare enrollment (NPD)

Enrolled

Credentials

Certified Registered Nurse, 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.

• Sterling Anesthesia Associates LLC

  • Anesthesiology Physician
  • Sterling, CO
  • NPI 1932978897

  Nurse Anesthetist, Certified Registered

  Medicare reassignment Care Compare group NPD
• Centers for Gastroenterology

  • Gastroenterology Physician
  • Fort Collins, CO
  • NPI 1801994157
  Medicare reassignment NPD
• Northern Colorado Anesthesia Professionals PLLC

  • Anesthesiology Physician
  • Fort Collins, CO
  • NPI 1851389613
  Medicare reassignment NPD
• Prowers County Hospital District

  • Critical Access Hospital
  • Lamar, CO
  • NPI 1821052929
  Medicare reassignment NPD
• East Phillips County Hospital District

  • Critical Access Hospital
  • Holyoke, CO
  • NPI 1891733879
  Medicare reassignment
• Prowers County Hospital District

  • Certified Registered Nurse Anesthetist
  • Lamar, CO
  • NPI 1326246141

  Nurse Anesthetist, Certified Registered

  NPD (past)

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

• Sterling Regional Medcenter

  • General Acute Care Hospital
  • Sterling, CO
  • NPI 1942238555
  Care Compare affiliation

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

{
    "created_epoch": "1605744000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1741651200000",
    "number": "1366045577",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2278 STONEFISH DR",
            "city": "WINDSOR",
            "state": "CO",
            "postal_code": "805503410",
            "telephone_number": "719-688-8732"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3702 AUTOMATION WAY STE 103",
            "city": "FORT COLLINS",
            "state": "CO",
            "postal_code": "805255738",
            "telephone_number": "970-224-2985"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1024 S LeMay Ave",
            "address_purpose": "LOCATION",
            "city": "Fort Collins",
            "state": "CO",
            "postal_code": "805243929",
            "country_code": "US",
            "telephone_number": "970-495-7000",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "2500 Rocky Mountain Ave",
            "address_purpose": "LOCATION",
            "city": "Loveland",
            "state": "CO",
            "postal_code": "805389004",
            "country_code": "US",
            "telephone_number": "970-624-2500",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "GREENFIELD",
        "first_name": "LARSON",
        "credential": "RN",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2020-11-19",
        "last_updated": "2025-03-11",
        "certification_date": "2025-03-11",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "163W00000X",
            "taxonomy_group": "",
            "desc": "Registered Nurse",
            "state": "TN",
            "license": "210609",
            "primary": false
        },
        {
            "code": "367500000X",
            "taxonomy_group": "",
            "desc": "Nurse Anesthetist, Certified Registered",
            "state": "CO",
            "license": "APN.0996947-CRNA",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Lindley Greene
• Nevaeh Susan Greene
• Rachel M Greene, PA-C
• Greenfield Management Services, Inc.
• Cindy Kay Greenfield, COTA
• Sharon Maxine Greenlee
• Linda D Greenman, LPS
• Linda Copeland Greer, MSW
• Pauline Lorine Gregg, RN
• Reyes Gregori, PT

• Certified Registered Nurse Anesthetist in Fort Collins, CO
• Providers in Fort Collins, CO by specialty
• Certified Registered Nurse Anesthetist in Colorado

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Mar 11, 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.