CHRISTOPHER M CALLAHAN M.D.
NPI 1417937491
Emergency Medicine in Plymouth, MN
About Christopher M Callahan M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CHRISTOPHER M CALLAHAN M.D. (NPI 1417937491) is an individual emergency medicine provider in Plymouth, Minnesota, licensed in Minnesota (45679) and active in the NPI registry since January 2006. He is enrolled in Medicare PECOS, is affiliated with Cook Hospital, and maintains a secondary practice location in Mankato.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
Other Identifiers 1
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
Christopher M Callahan 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
6Medicare enrollment records show Christopher Callahan reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Plymouth, MN 55441
- Reassigned Medicare billing, Minnesota enrollment
- 3,733 clinicians in this Medicare group
Garrison, MN 56450
- Reassigned Medicare billing, Minnesota enrollment
- Also billed through NPI 1942277835 (Minnesota)
- 164 clinicians in this Medicare group
Perham, MN 56573
- Reassigned Medicare billing, Minnesota enrollment
- 69 clinicians in this Medicare group
Park Rapids, MN 56470
- Reassigned Medicare billing, Minnesota enrollment
- 80 clinicians in this Medicare group
International Falls, MN 56649
- Reassigned Medicare billing, Minnesota enrollment
- 58 clinicians in this Medicare group
Roseau, MN 56751
- Reassigned Medicare billing, Minnesota enrollment
- 89 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.
Hospital Affiliations CMS Care Compare 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Cook Hospital
Critical Access Hospitals · Cook, MNBigfork Valley Hospital
Critical Access Hospitals · Bigfork, MNSt Josephs Area Health Services
Critical Access Hospitals · Park Rapids, MNPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 55447 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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 Christopher Callahan's NPI number?
The NPI number for Christopher Callahan is 1417937491. It was assigned to this individual provider in the NPPES registry on January 18, 2006.
Where is Christopher Callahan located?
Christopher Callahan practices at 14700 28th Ave N Ste 25, Plymouth, MN 55447. The listed phone number is (952) 763-5553.
What is Christopher Callahan's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Christopher Callahan enrolled in Medicare?
Yes. Christopher Callahan 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 Christopher Callahan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Christopher Callahan reassigns Medicare benefits to 6 organizations: Allina Health System (Plymouth, MN), Aitkin Community Hospital, Inc. (Garrison, MN), Perham Hospital District (Perham, MN), St. Joseph's Area Health Services (Park Rapids, MN), International Falls Memorial Hospital Association (International Falls, MN) and 1 more organization, 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 Christopher Callahan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Christopher Callahan accept?
Health plans from Blue Cross Blue Shield of North Dakota and Sanford Health Plan list Christopher Callahan 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 Christopher Callahan affiliated with any hospitals?
According to CMS data, Christopher Callahan is affiliated with Cook Hospital, Bigfork Valley Hospital and St Josephs Area Health Services.
When was this NPI record last updated?
The NPPES record for Christopher Callahan was last updated on March 4, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# Christopher M Callahan, M.D. · NPI 1417937491
Emergency Medicine physician in Plymouth, Minnesota. Individual provider, active in the CMS NPPES registry since January 18, 2006.
## Identity
- **NPI:** 1417937491 (Entity type: Individual)
- **Enumerated:** January 18, 2006
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 45679 (Minnesota)
- **Sole proprietor:** No
## Practice location
- **Address:** 14700 28TH AVE N STE 25, Plymouth, MN 55447
- **Phone:** (952) 763-5553
## 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:** 6 organizations under Medicare reassignment (form CMS-855R): Allina Health System (NPI 1073040408, Plymouth, MN); Aitkin Community Hospital, Inc. (NPI 1790815777, Garrison, MN); Perham Hospital District (NPI 1457631814, Perham, MN); St. Joseph's Area Health Services (NPI 1023086055, Park Rapids, MN); International Falls Memorial Hospital Association (NPI 1528041183, International Falls, MN); and 1 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Minnesota Medical School, class of 2002
## Record status
- **NPPES last updated:** March 4, 2021
- **Other identifiers:** Medicaid 951460100 (MN)
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Source: [NPI Profile](https://npiprofile.com/npi/1417937491) · Data from the CMS NPPES public registry.