Doctor profile · Federal record
Dr. Larson Greenfield, RN
Certified Registered Nurse Anesthetist (CMS: Certified Registered Nurse Anesthetist (CRNA)) · Registered Nurse · Fort Collins, CO
- NPI 1366045577
- Accepts Medicare
- 6 yrs in practice
- Licensed in 2 states
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 3 locations .
- Primary practice
-
3702 Automation Way Ste 103
Fort Collins, CO 805255738
(970) 224-2985 - Additional location
-
1024 S LeMay Ave
Fort Collins, CO 805243929
(970) 495-7000 - Additional location
-
2500 Rocky Mountain Ave
Loveland, CO 805389004
(970) 624-2500 - Mailing address
-
2278 Stonefish Dr
Windsor, CO 805503410
Credentials & registration
- NPI registered
- November 2020 — 6 yrs on file
- Profile last updated
- March 11, 2025
- Year of graduation
- 2020 — 6 yrs since
- Specialty taxonomy
- 367500000X — NUCC code
- State licenses (2)
- Colorado #APN.0996947-CRNA · Tennessee #210609
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1366045577. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
45
Distinct HCPCS
3
Medicare allowed
$8,910
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
00731 |
Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope | 22 | 21 | $137 | |
01214 |
Anesthesia for total hip replacement | 12 | 12 | $309 | |
01922 |
Anesthesia for x-ray or radiation therapy | 11 | 11 | $200 |
In context: peer comparison
Among 32 peers in Fort Collins Certified Registered Nurse Anesthetist, average services per provider: 33. This provider delivers 1.4× the peer median.Frequently asked questions
What is Dr. Larson Greenfield's medical specialty?
Dr. Larson Greenfield practices Certified Registered Nurse Anesthetist in Fort Collins, CO.
Where does Dr. Larson Greenfield practice?
Dr. Larson Greenfield practices at 3702 Automation Way Ste 103, Fort Collins, CO 805255738. Office phone: 9702242985.
What is Dr. Larson Greenfield's NPI?
Dr. Larson Greenfield's National Provider Identifier (NPI) is 1366045577, issued by NPPES.
Does Dr. Larson Greenfield accept Medicare assignment?
Yes. Dr. Larson Greenfield accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Larson Greenfield commonly perform?
Top Medicare-reported procedures in 2023: Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (HCPCS 00731); Anesthesia for total hip replacement (HCPCS 01214); Anesthesia for x-ray or radiation therapy (HCPCS 01922). Source: CMS Medicare Physician & Other Practitioners file.