NATHAN COOK M.D.
NPI 1629310297
Internal Medicine in Anaconda, MT
About Nathan Cook M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
NATHAN COOK M.D. (NPI 1629310297) is an individual internal medicine provider in Anaconda, Montana, licensed in Montana (47525) and active in the NPI registry since March 2013. He is enrolled in Medicare PECOS, is affiliated with Community Hospital Of Anaconda, and is a graduate of University Of Washington School Of Medicine (2013).
NPPES Registry Identity
Specialties & Licenses
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
Nathan Cook 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 Reassignment
Medicare enrollment records show Nathan Cook reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Anaconda, MT 59711
- Reassigned Medicare billing, Montana enrollment
- Also billed through NPI 1205887924 (Montana)
- 81 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 12
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.
Community Hospital Of Anaconda
Critical Access Hospitals · Anaconda, MTPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 59711 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims 2
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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.
ANACONDA, MT 59711
ANACONDA, MT 59711
ANACONDA, MT 59711
ANACONDA, MT 59711
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 Nathan Cook's NPI number?
The NPI number for Nathan Cook is 1629310297. It was assigned to this individual provider in the NPPES registry on March 21, 2013.
Where is Nathan Cook located?
Nathan Cook practices at 401 W Pennsylvania Ave, Anaconda, MT 59711. The listed phone number is (406) 563-8500.
What is Nathan Cook's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Nathan Cook enrolled in Medicare?
Yes. Nathan Cook 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 organization bills Medicare for Nathan Cook's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Nathan Cook reassigns Medicare benefits to Community Hospital Of Anaconda (Anaconda, MT). The 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 Nathan Cook's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Nathan Cook accept?
Health plans from Blue Cross and Blue Shield of Montana, Mountain Health CO-OP and PacificSource Health Plans list Nathan Cook 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 Nathan Cook affiliated with any hospitals?
According to CMS data, Nathan Cook is affiliated with Community Hospital Of Anaconda.
When was this NPI record last updated?
The NPPES record for Nathan Cook was last updated on February 14, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.