DR. JAMES ALAN DERRISAW M.D.
NPI 1710975586
Anesthesiology in Fort Collins, CO
About Dr. James Alan Derrisaw M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JAMES ALAN DERRISAW M.D. (NPI 1710975586) is an individual anesthesiology provider in Fort Collins, Colorado, licensed in Colorado (DR.0039525) and active in the NPI registry since October 2005. He is enrolled in Medicare PECOS, is affiliated with Ivinson Memorial Hospital, and is a graduate of University Of Colorado School Of Medicine, Denver (1997).
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 6
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
Dr. James Alan Derrisaw M.d. 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
2Medicare enrollment records show James Derrisaw reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Fort Collins, CO 80525
- Reassigned Medicare billing, Wyoming enrollment
- 31 clinicians in this Medicare group
Fort Collins, CO 80525
- Reassigned Medicare billing, Colorado enrollment
- 250 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
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.
Ivinson Memorial Hospital
Acute Care Hospitals · Laramie, WYOther Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
FORT COLLINS, CO 80524
FORT COLLINS, CO 80524
FORT COLLINS, CO 80524
FORT COLLINS, CO 80524
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 James Derrisaw's NPI number?
The NPI number for James Derrisaw is 1710975586. It was assigned to this individual provider in the NPPES registry on October 6, 2005.
Where is James Derrisaw located?
James Derrisaw practices at 1236 E Elizabeth St Suite 1, Fort Collins, CO 80524. The listed phone number is (970) 224-2985.
What is James Derrisaw's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is James Derrisaw enrolled in Medicare?
Yes. James Derrisaw 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 James Derrisaw's services?
According to the CMS Revalidation Reassignment List (October 2026 release), James Derrisaw reassigns Medicare benefits to 2 organizations: Ncap Imh, LLC (Fort Collins, CO) and Northern Colorado Anesthesia Professionals PLLC (Fort Collins, CO). 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 James Derrisaw's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does James Derrisaw accept?
Health plans from Blue Cross Blue Shield of Wyoming and Select Health list James Derrisaw 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 James Derrisaw affiliated with any hospitals?
According to CMS data, James Derrisaw is affiliated with Ivinson Memorial Hospital.
When was this NPI record last updated?
The NPPES record for James Derrisaw was last updated on June 6, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.
# Dr. James Alan Derrisaw, M.D. · NPI 1710975586
Anesthesiology physician in Fort Collins, Colorado. Individual provider, active in the CMS NPPES registry since October 6, 2005.
## Identity
- **NPI:** 1710975586 (Entity type: Individual)
- **Enumerated:** October 6, 2005
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** DR.0039525 (Colorado)
- **Sole proprietor:** No
## Practice location
- **Address:** 1236 E ELIZABETH ST, SUITE 1, Fort Collins, CO 80524-4000
- **Phone:** (970) 224-2985 · **Fax:** (970) 472-9381
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Ncap Imh, LLC (NPI 1093478075, Fort Collins, CO); Northern Colorado Anesthesia Professionals PLLC (NPI 1851389613, Fort Collins, CO) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Colorado School Of Medicine, Denver, class of 1997
## Record status
- **NPPES last updated:** June 6, 2013
- **Other identifiers:** Medicaid 04051262 (CO); Medicare UPIN H38662 (CO); Medicaid 119537900 (WY); and 3 more
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Source: [NPI Profile](https://npiprofile.com/npi/1710975586) · Data from the CMS NPPES public registry.