SHAWN PATRICK REGAN CRNA
NPI 1083870042
Nurse Anesthetist, Certified Registered in Glendive, MT
About Shawn Patrick Regan Crna NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
SHAWN PATRICK REGAN CRNA (NPI 1083870042) is an individual nurse anesthetist, certified registered in Glendive, Montana, licensed in Montana (56474) and active in the NPI registry since July 2008. He is affiliated with Bay Area Hospital and is a graduate of Other (2008).
NPPES Registry Identity
Specialties & Licenses
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
Shawn Patrick Regan 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
5Medicare enrollment records show Shawn Regan reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Coos Bay, OR 97420
- Reassigned Medicare billing, Oregon enrollment
- 327 clinicians in this Medicare group
Crescent City, CA 95531
- Reassigned Medicare billing, California enrollment
- 134 clinicians in this Medicare group
French Camp, CA 95231
- Reassigned Medicare billing, California enrollment
- Medicare enrollment name: Anesthesia Services Of San Joaquin PC
- 217 clinicians in this Medicare group
Brighton, MI 48114
- Reassigned Medicare billing, Arizona enrollment
- 370 clinicians in this Medicare group
Tucson, AZ 85712
- Reassigned Medicare billing, Arizona enrollment
- 264 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 5
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.
Bay Area Hospital
Acute Care Hospitals · Coos Bay, ORPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 59330 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.
GLENDIVE, MT 59330
GLENDIVE, MT 59330
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 Shawn Regan's NPI number?
The NPI number for Shawn Regan is 1083870042. It was assigned to this individual provider in the NPPES registry on July 30, 2008.
Where is Shawn Regan located?
Shawn Regan practices at 202 Prospect Dr, Glendive, MT 59330. The listed phone number is (406) 345-3306.
What is Shawn Regan's specialty?
The primary specialty registered for this NPI is Nurse Anesthetist, Certified Registered with taxonomy code 367500000X.
Is Shawn Regan enrolled in Medicare?
Yes. Shawn Regan 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 Shawn Regan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Shawn Regan reassigns Medicare benefits to 5 organizations: Bay Area Hospital District (Coos Bay, OR), Sda Services Of Ca (Crescent City, CA), Anesthesia Services Of San Joaquin, P.C. (French Camp, CA), Anesthesia Partners & Management LLC (Brighton, MI) and Ias Arizona PLLC (Tucson, AZ). 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 Shawn Regan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Shawn Regan affiliated with any hospitals?
According to CMS data, Shawn Regan is affiliated with Bay Area Hospital.
When was this NPI record last updated?
The NPPES record for Shawn Regan was last updated on February 8, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.