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Dr. Erik W. Koster, DO

Hospitalist Physician in Colorado Springs, CO · enumerated 2006.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1902843626

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Registry record

Entity type Individual (Type 1)
Name Dr. Erik W. Koster
Credential DO
Sex Male
Practice address 2222 N Nevada Ave, Colorado Springs, CO, 80907
Phone (719) 776-8040
Fax (719) 776-8050
Enumeration date Jun 1, 2006
Last updated in NPPES Jul 1, 2020

Taxonomy & licenses

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License DR.0043665 (CO) Secondary
207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 43665 (CO) Secondary
208M00000X Hospitalist Physician Allopathic & Osteopathic Physicians · License DR.0043665 (CO) Primary
DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

Other identifiers

Identifier Type State Issuer
19274092 Medicaid CO -

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

What specialty is Erik Koster?
Erik Koster is registered in NPPES with the primary taxonomy of Hospitalist Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-07-01.