Mark Siemer, D.O.
Family Medicine Physician · Colorado Springs, CO
Mark Siemer, D.O. is a family medicine physician with a practice address in Colorado Springs, Colorado, and NPI 1871649368, issued on Jan 26, 2007. Check the license on the Colorado Medical Board; the Medicare figures below come from public CMS files.
- Name
- Mark Siemer
- Credential
- D.O.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- Practice location
- 13445 Voyager Pkwy, Colorado Springs, CO 80921
- Phone
- (719) 365-3220
- Enumerated
- Jan 26, 2007
- Entity
- Type 1 · individual
Also registered at 13445 Voyager Pkwy
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Adrianna Allen, APNFamily Nurse Practitioner1750857074
- Robert Cowan, P.A.-CMedical Physician Assistant1821194804
- Kathleen Dilday, FNP-BCFamily Nurse Practitioner1649832536
- David Lindblad, EMPA-CPhysician Assistant1073593596
- Katelyn McIntosh, FNP-CRegistered Nurse1497316657
- Allison Wood, ARNPNurse Practitioner1134458862
Verify Mark Siemer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersColorado Medical BoardCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
100% fewer Medicare Part D claims than the average family medicine physician in 2024
12 Medicare Part D claims, against an average of 3,519 among the 111,126 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of 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 or facility affiliation
- Catholic Health Initiatives ColoradoSilverthorne, CO
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
298 family medicine physician records list a Colorado Springs practice address
They are 298 of the 19,771 NPPES records with a Colorado Springs practice address, and 3,406 family medicine physician records in Colorado.
All 298 in Colorado Springs → All 3,406 in Colorado → Every provider in Colorado Springs →
Other family medicine physician records in Colorado
- Eric Abbott, D.O.Colorado Springs, CO1255522876
- John Abbott, D.O.Lamar, CO1255477790
- Rasha Abdelsalam, MDDenver, CO1891058467
- Baiju Abdulla, M.B.B.S.Colorado Springs, CO1316119076
- Nathalie Abisror, MDCastle Pines, CO1336634922
- Ashley Abrahamson, DOPueblo, CO1497324065
- Lara Abrahamson, MDFort Collins, CO1538145289
- Pamela Abrams, MDBroomfield, CO1073514188
- Hemamalini Achuthan, MDLakewood, CO1205982881
- Chris Adams, D.O.Limon, CO1144285248
Common questions
What is Mark Siemer, D.O.'s NPI number?
Mark Siemer, D.O.'s National Provider Identifier (NPI) is 1871649368, issued on Jan 26, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Mark Siemer, D.O. located?
The NPPES record lists a practice address at 13445 Voyager Pkwy, Colorado Springs, CO, 80921. Phone: (719) 365-3220. Providers update this record themselves, so call before visiting.
How can I verify Mark Siemer, D.O.'s license?
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 Mark Siemer, D.O. prescribe under Medicare Part D?
In 2024, Mark Siemer, D.O. had 12 Medicare Part D claims; the average among family medicine physician prescribers was 3,519. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.