Larson Greenfield, RN - Medicare Certified Registered Nurse Anesthetist (crna) in Fort Collins, CO

Larson Greenfield, RN is a medicare enrolled "Nurse Anesthetist, Certified Registered" in Fort Collins, Colorado. He graduated from nursing school in 2020 and has 4 years of diverse experience with area of expertise as Certified Registered Nurse Anesthetist (crna). He is a member of the group practice Sterling Anesthesia Associates Llc, Northern Colorado Anesthesia Professionals Pllc and his current practice location is 3702 Automation Way Ste 103, Fort Collins, Colorado. You can reach out to his office (for appointments etc.) via phone at (970) 224-2985.

Larson Greenfield is licensed to practice in Colorado (license number APN.0996947-CRNA) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1366045577.

Contact Information

Larson Greenfield, RN
3702 Automation Way Ste 103,
Fort Collins, CO 80525-5738
(970) 224-2985
Not Available

Map and Direction




Provider's Profile

Full NameLarson Greenfield
GenderMale
SpecialityCertified Registered Nurse Anesthetist (crna)
Experience4 Years
Location3702 Automation Way Ste 103, Fort Collins, Colorado
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Larson Greenfield graduated from nursing school in 2020
  NPI Data:
  • NPI Number: 1366045577
  • Provider Enumeration Date: 11/19/2020
  • Last Update Date: 06/09/2022
  Medicare PECOS Information:
  • PECOS PAC ID: 2567879224
  • Enrollment ID: I20210324001575

Medical Identifiers

Medical identifiers for Larson Greenfield such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1366045577NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
367500000XNurse Anesthetist, Certified Registered APN.0996947-CRNA (Colorado)Primary
163W00000XRegistered Nurse 210609 (Tennessee)Secondary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Medical Center Of The RockiesLoveland, COHospital
Uchealth Greeley HospitalGreeley, COHospital
Sterling Regional MedcenterSterling, COHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Sterling Anesthesia Associates Llc397195643412
Northern Colorado Anesthesia Professionals Pllc6800878760140

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Larson Greenfield allows following entities to bill medicare on his behalf.
Entity NameCenters For Gastroenterology
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1801994157
PECOS PAC ID: 9537059555
Enrollment ID: O20040316000132
Entity NameNorthern Colorado Anesthesia Professionals Pllc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1851389613
PECOS PAC ID: 6800878760
Enrollment ID: O20040603001119
Entity NameSterling Anesthesia Associates Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1932978897
PECOS PAC ID: 3971956434
Enrollment ID: O20240131003232

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Larson Greenfield is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Larson Greenfield, RN
3702 Automation Way Ste 103,
Fort Collins, CO 80525-5738

Ph: (719) 688-8732
Larson Greenfield, RN
3702 Automation Way Ste 103,
Fort Collins, CO 80525-5738

Ph: (970) 224-2985

Reviews and Comments


Nurse Anesthetist, Certified Registered Nurses in Fort Collins, CO

Lindsay Siebenaler, CRNA
Nurse Anesthetist - CR
Medicare: Accepting Medicare Assignments
Practice Location: 3702 Automation Way Ste 103, Fort Collins, CO 80525
Phone: 970-224-2985    
Mr. Steven K. Peterson, CRNA
Nurse Anesthetist - CR
Medicare: Not Enrolled in Medicare
Practice Location: 1236 E Elizabeth St, Suite 1, Fort Collins, CO 80524
Phone: 970-224-2985    Fax: 970-472-9381
Alana Tutt, RN
Nurse Anesthetist - CR
Medicare: Accepting Medicare Assignments
Practice Location: 1236 E Elizabeth St, Suite 1, Fort Collins, CO 80524
Phone: 970-224-2985    Fax: 970-472-9381
Mr. Wilson H. Wessells Jr., CRNA
Nurse Anesthetist - CR
Medicare: Not Enrolled in Medicare
Practice Location: 1236 E Elizabeth St, Suite 1, Fort Collins, CO 80524
Phone: 970-224-2985    Fax: 970-472-9381
Mr. Richard Christopher Elmore, C.R.N.A.
Nurse Anesthetist - CR
Medicare: Accepting Medicare Assignments
Practice Location: 1236 E Elizabeth St, Suite 1, Fort Collins, CO 80524
Phone: 970-224-2985    Fax: 970-472-9381
Stephanie Drazer Ford, CRNA
Nurse Anesthetist - CR
Medicare: Accepting Medicare Assignments
Practice Location: 1236 E Elizabeth St Ste 1, Fort Collins, CO 80524
Phone: 970-224-2985    Fax: 970-472-9381
Ms. Karla Osborne Quarles, CRNA
Nurse Anesthetist - CR
Medicare: Not Enrolled in Medicare
Practice Location: 1236 E Elizabeth St, Suite 1, Fort Collins, CO 80524
Phone: 970-224-2985    Fax: 970-472-9381

Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.