Erik W. Koster, DO
Hospitalist Physician · Colorado Springs, CO
Erik W. Koster, DO is a hospitalist physician with a practice address in Colorado Springs, Colorado, and NPI 1902843626, issued on Jun 1, 2006. Check the license (Colorado DR.0043665, as entered in NPPES) on the Colorado Medical Board; the Medicare figures below come from public CMS files.
- Name
- Erik W. Koster
- Credential
- DO
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License numbers
- DR.0043665 CO
43665 CO
Self-reported in NPPES; status is on the state search - Practice location
- 2222 N Nevada Ave, Colorado Springs, CO 80907
- Phone
- (719) 776-8040
- Enumerated
- Jun 1, 2006
- Record last updated
- Jul 1, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (719) 776-8050
- Medicaid ID
- 19274092 CO
- Medicare enrollment
- Enrolled (PECOS I20060706000154); accepts Medicare assignment
- Medical or professional school
- R Franklin University Of Med & Sci/Chicago Medical School, 2003
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 806 in Colorado → Look up another NPI →
Also registered at 2222 N Nevada Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Subodh Adhikari, M.D.Hospitalist Physician1457731861
- David Albrecht, M.D.Cardiovascular Disease Physician1508853664
- James Anderson, M.D.Cardiovascular Disease Physician1326241084
- Sandra Andrew, NPNurse Practitioner1962443853
- Sara Arafat, MDAnatomic Pathology & Clinical Pathology Physician1891347720
- Elizabeth Arnold, NPAdult Health Nurse Practitioner1063793446
Verify Erik W. Koster in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersColorado Medical Board
Search for license DR.0043665Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
58% fewer Medicare Part D claims than the average hospitalist physician in 2024
218 Medicare Part D claims for 117 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims.
Most prescribed
- Prednisone20 claims
- Amoxicillin-Clavulanate Potass15 claims
- Cefpodoxime Proxetil15 claims
- Pantoprazole Sodium14 claims
- Eliquis12 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 88.2 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Portercare Adventist Health SystemCastle Rock, CO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Erik W. Koster among 806 hospitalist physician records in Colorado
Erik W. Koster, DO is one of 806 hospitalist physician records with a practice address in Colorado. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 3% of them.
- NPI issued2006 · 3% of these records are older, 81% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 77% of these records are
- Graduated2003 · median 2012 among the 622 with a school on file
- Record last updated2020 · 38% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hospitalist Physician providers in Colorado
There are 806 hospitalist physician records in Colorado.
All 806 in Colorado → Every provider in Colorado Springs → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- Caryn Baldauf, MDColorado Springs, CO 809071811963226
- Thomas Bartlett, MDColorado Springs, CO 809071427002724
- Candace Brown, MDColorado Springs, CO 809071346371614
- Raluca Cascaval, MDColorado Springs, CO 809071538139498
- Christopher Erickson, MDColorado Springs, CO 809071477647261
- Marvin Lee, MDColorado Springs, CO 809071588654834
- Jonathan Monticelli, M.D.Colorado Springs, CO 809071447383237
- Philip Pennington, MDColorado Springs, CO 809071396714671
Common questions
What is Erik W. Koster, DO's NPI number?
Erik W. Koster, DO's National Provider Identifier (NPI) is 1902843626, issued on Jun 1, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Erik W. Koster, DO located?
The NPPES record lists a practice address at 2222 N Nevada Ave, Colorado Springs, CO, 80907. Phone: (719) 776-8040. Providers update this record themselves, so call before visiting.
How can I verify Erik W. Koster, DO's license?
NPPES lists Colorado license number DR.0043665, 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 Erik W. Koster, DO prescribe under Medicare Part D?
In 2024, Erik W. Koster, DO had 218 Medicare Part D claims for 117 beneficiaries; the average among hospitalist physician prescribers was 521. Part D covers Medicare prescriptions only.
What is Erik W. Koster, DO's MIPS final score?
The 2023 MIPS final score is 88.2 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.