Mark Collison, M.D.
Internal Medicine Physician · Carroll, IA
Mark Collison, M.D. is an internal medicine physician with a practice address in Carroll, Iowa, and NPI 1336256130, issued on Aug 25, 2006. Check the license (Iowa 22966, as entered in NPPES) on the Iowa Board of Medicine; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Mark Collison
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 22966 IA
Self-reported in NPPES; status is on the state search - Practice location
- 405 S Clark St, Carroll, IA 51401
- Phone
- (712) 794-2222
- Enumerated
- Aug 25, 2006
- Entity
- Type 1 · individual
Also registered at 405 S Clark St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Mark Collison in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIowa Board of Medicine
Search for license 22966Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
3 internal medicine physician records list a Carroll practice address
They are 3 of the 228 NPPES records with a Carroll practice address, and 1,338 internal medicine physician records in Iowa. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 3 in Carroll → All 1,338 in Iowa → Every provider in Carroll →
Other internal medicine physician records in Iowa
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- Mohamed Abd El MaksoudMason City, IA1033792825
- Ala Abdallah, MDIowa City, IA1588395701
- Ahmed Abdelhamid, MDIowa City, IA1306403795
- Ola AbdelkarimIowa City, IA1780378588
- Mohammed Abdila, MDDavenport, IA1982338752
Common questions
What is Mark Collison, M.D.'s NPI number?
Mark Collison, M.D.'s National Provider Identifier (NPI) is 1336256130, issued on Aug 25, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mark Collison, M.D. located?
The NPPES record lists a practice address at 405 S Clark St, Carroll, IA, 51401. Phone: (712) 794-2222. Providers update this record themselves, so call before visiting.
How can I verify Mark Collison, M.D.'s license?
NPPES lists Iowa license number 22966, 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.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.