THERESA DIANE KEEFER CRNA
NPI 1477857274
Nurse Anesthetist, Certified Registered in Canon City, CO
About Theresa Diane Keefer Crna NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
THERESA DIANE KEEFER CRNA (NPI 1477857274) is an individual nurse anesthetist, certified registered in Canon City, Colorado, licensed in Colorado (APN.0100024-CRNA) and active in the NPI registry since January 2011. She is enrolled in Medicare PECOS, is affiliated with Campbell County Health, and maintains 2 additional practice locations.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 2
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Theresa Diane Keefer Crna is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
7Medicare enrollment records show Theresa Keefer reassigns Medicare billing to 7 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Colorado Springs, CO 80907
- Reassigned Medicare billing, Colorado enrollment
- 33 clinicians in this Medicare group
Sedalia, CO 80135
- Reassigned Medicare billing, Colorado enrollment
- 79 clinicians in this Medicare group
Parker, CO 80138
- Reassigned Medicare billing, Colorado enrollment
- 54 clinicians in this Medicare group
Greenwood Village, CO 80111
- Reassigned Medicare billing, Colorado enrollment
- 971 clinicians in this Medicare group
Trinidad, CO 81082
- Reassigned Medicare billing, Colorado enrollment
- 66 clinicians in this Medicare group
North Platte, NE 69101
- Reassigned Medicare billing, Nebraska enrollment
- 365 clinicians in this Medicare group
Wright, WY 82732
- Reassigned Medicare billing, Wyoming enrollment
- 285 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 4
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Campbell County Health
Acute Care Hospitals · Gillette, WYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 81212 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
CANON CITY, CO 81212
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Theresa Keefer's NPI number?
The NPI number for Theresa Keefer is 1477857274. It was assigned to this individual provider in the NPPES registry on January 7, 2011.
Where is Theresa Keefer located?
Theresa Keefer practices at 1338 Phay Ave, Canon City, CO 81212. The listed phone number is (719) 285-2861.
What is Theresa Keefer's specialty?
The primary specialty registered for this NPI is Nurse Anesthetist, Certified Registered with taxonomy code 367500000X.
Is Theresa Keefer enrolled in Medicare?
Yes. Theresa Keefer is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Theresa Keefer's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Theresa Keefer reassigns Medicare benefits to 7 organizations: Anesthesia Of The Rocky Mountains, LLC (Colorado Springs, CO), Diehl Anesthesia Inc (Sedalia, CO), Guardian Anesthesia Services, Inc (Parker, CO), Us Anesthesia Partners Of Colorado Inc. (Greenwood Village, CO), Trinidad Area Health Association (Trinidad, CO) and 2 more organizations, listed in the Medicare section above. Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Theresa Keefer's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Theresa Keefer accept?
Health plans from Blue Cross Blue Shield of Wyoming, Blue Cross and Blue Shield of Nebraska and Select Health list Theresa Keefer as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Theresa Keefer affiliated with any hospitals?
According to CMS data, Theresa Keefer is affiliated with Campbell County Health.
When was this NPI record last updated?
The NPPES record for Theresa Keefer was last updated on July 21, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Theresa Diane Keefer, CRNA · NPI 1477857274
Nurse Anesthetist, Certified Registered physician in Canon City, Colorado. Individual provider, active in the CMS NPPES registry since January 7, 2011.
## Identity
- **NPI:** 1477857274 (Entity type: Individual)
- **Enumerated:** January 7, 2011
- **Primary specialty:** Nurse Anesthetist, Certified Registered · taxonomy 367500000X
- **State license:** APN.0100024-CRNA (Colorado)
- **Sole proprietor:** No
## Practice location
- **Address:** 1338 PHAY AVE, Canon City, CO 81212-2311
- **Phone:** (719) 285-2861 · **Fax:** (719) 285-2101
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging
- **Bills Medicare through:** 7 organizations under Medicare reassignment (form CMS-855R): Anesthesia Of The Rocky Mountains, LLC (NPI 1245547850, Colorado Springs, CO); Diehl Anesthesia Inc (NPI 1467833897, Sedalia, CO); Guardian Anesthesia Services, Inc (NPI 1013946797, Parker, CO); Us Anesthesia Partners Of Colorado Inc. (NPI 1922365782, Greenwood Village, CO); Trinidad Area Health Association (NPI 1548965999, Trinidad, CO); and 2 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2010
## Record status
- **NPPES last updated:** July 21, 2022
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Source: [NPI Profile](https://npiprofile.com/npi/1477857274) · Data from the CMS NPPES public registry.