Mark Nelson, MD
Family Medicine Physician · Wheaton, IL
Mark Nelson, MD is a family medicine physician with a practice address in Wheaton, Illinois, and NPI 1942277942, issued on Mar 8, 2006. Check the license (Illinois 036072356, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Mark Nelson
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 036072356 IL
Self-reported in NPPES; status is on the state search - Practice location
- 150 E Willow Ave Ste 300, Wheaton, IL 60187
- Phone
- (630) 510-6900
- Enumerated
- Mar 8, 2006
- Record last updated
- Feb 24, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (630) 871-6706
- Medicaid ID
- 036072356 IL
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 6,215 in Illinois → Look up another NPI →
Also registered at 150 E Willow Ave Ste 300
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Rosanne Browne, MDFamily Medicine Physician1598049645
- Elizabeth Giese, M.D.Family Medicine Physician1528027398
- Robert Kemp, MDFamily Medicine Physician1245235100
- Patrick Mackey, M.D.Internal Medicine Physician1316151848
- Tessie Mathew, D.O.Family Medicine Physician1285950287
Verify Mark Nelson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
Search for license 036072356Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Mark Nelson among 6,215 family medicine physician records in Illinois
Mark Nelson, MD is one of 6,215 family medicine physician records with a practice address in Illinois. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 9% of them.
- NPI issued2006 · 9% of these records are older, 59% newer
- In a Medicare fileNo · 78% of these records are
- In the CMS Doctors and Clinicians fileNo · 60% of these records are
- Record last updated2021 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
51 family medicine physician records list a practice address in Wheaton
They are 51 of the 2,468 NPPES records with a practice address in Wheaton, and 6,215 family medicine physician records in Illinois. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 6,215 in Illinois → Every provider in Wheaton → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Jon Aagaard, MDWheaton, IL 601871750496923
- Steven Armbrust, MDWheaton, IL 601871851406037
- John Born, DOWheaton, IL 601871225063357
- Mary Caraher, DOWheaton, IL 601871265411334
- Thomas Cornwell, MDWheaton, IL 601871386679082
- Elizabeth Giese, M.D.Wheaton, IL 601871528027398
- Mark Isoniemi, M.D.Wheaton, IL 601871295779239
- Robert Kemp, MDWheaton, IL 601871245235100
Common questions
What is Mark Nelson, MD's NPI number?
Mark Nelson, MD's National Provider Identifier (NPI) is 1942277942, issued on Mar 8, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mark Nelson, MD located?
The NPPES record lists a practice address at 150 E Willow Ave Ste 300, Wheaton, IL, 60187. Phone: (630) 510-6900. Providers update this record themselves, so call before visiting.
How can I verify Mark Nelson, MD's license?
NPPES lists Illinois license number 036072356, as entered by the provider. 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.