Thomas Mikkelson, MD
Internal Medicine Physician · East Saint Louis, IL
Thomas Mikkelson, MD is an internal medicine physician with a practice address in East Saint Louis, Illinois, and NPI 1881708410, issued on Aug 19, 2006. Check the license on the Illinois Department of Financial and Professional Regulation; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Thomas Mikkelson
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- Practice location
- 5900 Bond Ave, East Saint Louis, IL 62207
- Phone
- (618) 332-5212
- Enumerated
- Aug 19, 2006
- Record last updated
- Jul 9, 2007 (not updated in 19 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
Also registered at 5900 Bond Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Thomas Mikkelson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional RegulationCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Internal Medicine Physician providers in Illinois
There are 7,238 internal medicine physician records in Illinois. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 7,238 in Illinois → Every provider in East Saint Louis →
Other internal medicine physician records in Illinois
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Common questions
What is Thomas Mikkelson, MD's NPI number?
Thomas Mikkelson, MD's National Provider Identifier (NPI) is 1881708410, issued on Aug 19, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Thomas Mikkelson, MD located?
The NPPES record lists a practice address at 5900 Bond Ave, East Saint Louis, IL, 62207. Phone: (618) 332-5212. Providers update this record themselves, so call before visiting.
How can I verify Thomas Mikkelson, MD's license?
Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. 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), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.