Nathan Cook, M.D.
Internal Medicine Physician · Anaconda, MT
Nathan Cook, M.D. is an internal medicine physician with a practice address in Anaconda, Montana, and NPI 1629310297, issued on Mar 21, 2013. Check the license (Montana 47525, as entered in NPPES) on the Montana Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Nathan Cook
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 47525 MT
Self-reported in NPPES; status is on the state search - Practice location
- 401 W Pennsylvania Ave, Anaconda, MT 59711
- Phone
- (406) 563-8500
- Enumerated
- Mar 21, 2013
- Record last updated
- Feb 14, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (406) 563-8565
- Medicare enrollment
- Enrolled (PECOS I20170308002374); accepts Medicare assignment
- Medical or professional school
- University Of Washington School Of Medicine, 2013
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 324 in Montana → Look up another NPI →
Also registered at 401 W Pennsylvania Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Emily Bitterman, R.D.Registered Dietitian1104705946
- Brian Bradley, CRNACertified Registered Nurse Anesthetist1881610616
- Lisa Buffington, PTAPhysical Therapy Assistant1043591845
Verify Nathan Cook in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMontana Board of Medical Examiners
Search for license 47525Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
90% fewer Medicare Part D claims than the average internal medicine physician in 2024
329 Medicare Part D claims for 114 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 17 claims were for opioids.
Most prescribed
- Cefuroxime32 claims
- Prednisone24 claims
- Furosemide15 claims
- Oxycodone Hcl15 claims
- Amoxicillin-Clavulanate Potass12 claims
- Eliquis11 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
One hospital affiliation
- Community Hospital OF AnacondaAnaconda, MT · Critical Access Hospitals5 of 5 stars
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Nathan Cook among 324 internal medicine physician records in Montana
Nathan Cook, M.D. is one of 324 internal medicine physician records with a practice address in Montana. 72% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 76% of them.
- NPI issued2013 · 76% of these records are older, 20% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2013 · median 2006 among the 191 with a school on file
- Record last updated2019 · 52% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Montana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
4 internal medicine physician records list a practice address in Anaconda
They are 4 of the 192 NPPES records with a practice address in Anaconda, and 324 internal medicine physician records in Montana.
All 324 in Montana → Every provider in Anaconda → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Emily Owen, MDAnaconda, MT 597111841787629
- William Reiter, MDAnaconda, MT 597111982656229
- Elizabeth Schiedermayer, MDAnaconda, MT 597111538629761
- Philip Bain, MDBelgrade, MT 597141386682664
- Marina SpragueBelgrade, MT 597141780144469
- David Stern, M.D.Belgrade, MT 597141568449742
- James Attarian, MDBozeman, MT 597151144209198
- David Crites, MDBozeman, MT 597151164457453
Common questions
What is Nathan Cook, M.D.'s NPI number?
Nathan Cook, M.D.'s National Provider Identifier (NPI) is 1629310297, issued on Mar 21, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Nathan Cook, M.D. located?
The NPPES record lists a practice address at 401 W Pennsylvania Ave, Anaconda, MT, 59711. Phone: (406) 563-8500. Providers update this record themselves, so call before visiting.
How can I verify Nathan Cook, M.D.'s license?
NPPES lists Montana license number 47525, as entered by the provider. Search the Montana Board of Medical Examiners at https://ebiz.mt.gov/POL/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Nathan Cook, M.D. prescribe under Medicare Part D?
In 2024, Nathan Cook, M.D. had 329 Medicare Part D claims for 114 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.