NPPES file of Aug 9, 2026

Christopher J. Unrein, DO, FAOGME, FACP, CM

Geriatric Medicine (Internal Medicine) Physician · Golden, CO

Christopher J. Unrein, DO, FAOGME, FACP, CM is a geriatric medicine (internal medicine) physician with a practice address in Golden, Colorado, and NPI 1225033095, issued on Jun 16, 2005. Check the license (Colorado 30143, as entered in NPPES) on the Colorado Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1225033095
Name
Christopher J. Unrein
Credential
DO, FAOGME, FACP, CM
Primary taxonomy
Geriatric Medicine (Internal Medicine) Physician 207RG0300X
License number
30143 CO
Self-reported in NPPES; status is on the state search
Practice location
5920 Mcintyre St, Golden, CO 80403
Phone
(720) 434-4876
Enumerated
Jun 16, 2005
Record last updated
Nov 10, 2022
Medicaid ID
01301431 CO
Medicare enrollment
Enrolled (PECOS I20050120001060); accepts Medicare assignment
Medical or professional school
Des Moines University Of Osteopathic Medicine And Health Sciences, 1988
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest geriatric medicine (internal medicine) physician records → All 103 in Colorado → Look up another NPI →

Also registered at 5920 Mcintyre St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Clarence Adams, NPAdult Health Nurse Practitioner1609278290
  2. Mark Adams, MDGeriatric Medicine (Internal Medicine) Physician1881682888
  3. Maureen Allen, WHNPWomen's Health Nurse Practitioner1770525925
  4. Katherine Arthur, PA-CPhysician Assistant1710127659
  5. Myrtle Barlow, NP-CNurse Practitioner1629331186
  6. Sharon Blumenthal, FNPFamily Nurse Practitioner1861628802

Verify Christopher J. Unrein in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersColorado Medical Board
    Search for license 30143    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Colorado license search

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2.1 times the Medicare Part D claims of the average geriatric medicine (internal medicine) physician in 2024

8,874 Medicare Part D claims for 359 beneficiaries, against an average of 4,246 among the 3,116 providers of this specialty who prescribed in Part D. 244 claims were for opioids.

  1. Christopher Unrein8,874
  2. Specialty average4,246

Most prescribed

  1. Levothyroxine Sodium649 claims
  2. Eliquis432 claims
  3. Atorvastatin Calcium376 claims
  4. Amlodipine Besylate258 claims
  5. Potassium Chloride254 claims
  6. Risperidone234 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.

Bills Medicare through one group practice

  1. Meadows Family Medical Center IncDenver, CO

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Christopher J. Unrein among 103 geriatric medicine (internal medicine) physician records in Colorado

Christopher J. Unrein, DO, FAOGME, FACP, CM is one of 103 geriatric medicine (internal medicine) physician records with a practice address in Colorado. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 92% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 50% of these records are
  • Graduated1988 · median 1998 among the 51 with a school on file
  • Record last updated2022 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0300X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Geriatric Medicine (Internal Medicine) Physician providers in Colorado

There are 103 geriatric medicine (internal medicine) physician records in Colorado.

All 103 in Colorado → Every provider in Golden → Geriatric Medicine (Internal Medicine) Physician nationwide →

The 8 geriatric medicine (internal medicine) physician records with the nearest ZIP codes

  1. Mark Adams, MDGolden, CO 804031881682888
  2. Chang Kang, M.D.Golden, CO 804031689675852
  3. Donald Murphy, MDGolden, CO 804031013004589
  4. Bookanakere Niranjan, M.D., M.P.H.Golden, CO 804031114010436
  5. Timothy Rodgers, M. D.Golden, CO 804031215939541
  6. Mary Tuuk, MDGolden, CO 804031174630701
  7. Sarah Beck, M.D.Golden, CO 804011417272584
  8. James Murphy, M.D.Boulder, CO 803041679557268

Common questions

What is Christopher J. Unrein, DO, FAOGME, FACP, CM's NPI number?

Christopher J. Unrein, DO, FAOGME, FACP, CM's National Provider Identifier (NPI) is 1225033095, issued on Jun 16, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Christopher J. Unrein, DO, FAOGME, FACP, CM located?

The NPPES record lists a practice address at 5920 Mcintyre St, Golden, CO, 80403. Phone: (720) 434-4876. Providers update this record themselves, so call before visiting.

How can I verify Christopher J. Unrein, DO, FAOGME, FACP, CM's license?

NPPES lists Colorado license number 30143, as entered by the provider. Search the Colorado Medical Board at https://dpo.colorado.gov/Medical. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Christopher J. Unrein, DO, FAOGME, FACP, CM prescribe under Medicare Part D?

In 2024, Christopher J. Unrein, DO, FAOGME, FACP, CM had 8,874 Medicare Part D claims for 359 beneficiaries; the average among geriatric medicine (internal medicine) physician prescribers was 4,246. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.