Timothy Colby, DO
Family Medicine Physician · Ankeny, IA
Timothy Colby, DO is a family medicine physician with a practice address in Ankeny, Iowa, and NPI 1891774550, issued on Jan 11, 2006. Check the license (Iowa DO-03638, as entered in NPPES) on the Iowa Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Timothy Colby
- Credential
- DO
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- DO-03638 IA
Self-reported in NPPES; status is on the state search - Practice location
- 1410 SW Tradition Dr Ste 110, Ankeny, IA 50023
- Phone
- (515) 875-9696
- Enumerated
- Jan 11, 2006
- Record last updated
- Dec 29, 2023
- Fax
- (515) 875-9697
- Medicare enrollment
- Enrolled (PECOS I20050810000035); accepts Medicare assignment
- Entity
- Type 1 · individual
Also registered at 1410 SW Tradition Dr Ste 110
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Mary Carr Peterson, PAPhysician Assistant1164496212
- Karla Edwards, ARNP, FNP-CNurse Practitioner1366871865
- John KarabiasPhysician Assistant1336219344
- Andrew Tigges, PA-CPhysician Assistant1790018471
- Kristin Witzenburg, PACPhysician Assistant1306260682
Verify Timothy Colby in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIowa Board of Medicine
Search for license DO-03638Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
79% fewer Medicare Part D claims than the average family medicine physician in 2024
727 Medicare Part D claims for 382 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.
Most prescribed
- Prednisone241 claims
- Doxycycline Monohydrate109 claims
- Fluconazole49 claims
- Cefdinir40 claims
- Azithromycin35 claims
- Diclofenac Sodium35 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
- The Iowa Clinic PCAnkeny, IA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
48 family medicine physician records list a practice address in Ankeny
They are 48 of the 1,198 NPPES records with a practice address in Ankeny, and 2,336 family medicine physician records in Iowa.
All 48 in Ankeny → All 2,336 in Iowa → Every provider in Ankeny →
Other family medicine physician records in Iowa
- Jennifer Aanestad, M.D.Durant, IA1386649341
- Amjad Abdelhady, MDSioux City, IA1033966700
- Afsana Abdullah, D.O.Bettendorf, IA1760583066
- Raja Ali Abdullah, MDCedar Falls, IA1356101000
- Laura Abels, DOAnkeny, IA1427313527
- Matthew AbendrothDes Moines, IA1972918894
- Mabra Abernathy, M.D.Coralville, IA1316922545
- Jennifer Abler, D.O.Altoona, IA1528159068
- Michael Abouassaly, M.D.West Burlington, IA1184790909
- Safa Abukhalil, M.B.B.SWest Des Moines, IA1982084463
Common questions
What is Timothy Colby, DO's NPI number?
Timothy Colby, DO's National Provider Identifier (NPI) is 1891774550, issued on Jan 11, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Timothy Colby, DO located?
The NPPES record lists a practice address at 1410 SW Tradition Dr Ste 110, Ankeny, IA, 50023. Phone: (515) 875-9696. Providers update this record themselves, so call before visiting.
How can I verify Timothy Colby, DO's license?
NPPES lists Iowa license number DO-03638, as entered by the provider. Search the Iowa Board of Medicine at https://dial.iowa.gov/about-dial/boards-and-commissions/medicine. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Timothy Colby, DO prescribe under Medicare Part D?
In 2024, Timothy Colby, DO had 727 Medicare Part D claims for 382 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.