NPPES file of Aug 9, 2026

John Thornton Fox, MD

Internal Medicine Physician · Palatine, IL

John Thornton Fox, MD is an internal medicine physician with a practice address in Palatine, Illinois, and NPI 1619073145, issued on Sep 15, 2006. Check the license (Illinois 036064952, 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.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1619073145
Name
John Thornton Fox
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
036064952 IL
Self-reported in NPPES; status is on the state search
Practice location
500 N Hicks RD, Palatine, IL 60067
Phone
(847) 221-8700
Enumerated
Sep 15, 2006
Record last updated
Mar 7, 2023
Fax
(847) 991-9348
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 500 N Hicks RD

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Karen Amos, LCSWClinical Social Worker1013680289
  2. Katherine Fearon, LCSWClinical Social Worker1235846965
  3. Mourid Salib, DDS MS PCDentist1093884397

Verify John Thornton Fox in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
    Search for license 036064952
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Illinois license search

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9 internal medicine physician records list a practice address in Palatine

They are 9 of the 770 NPPES records with a practice address in Palatine, and 7,238 internal medicine physician records in Illinois. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

Other internal medicine physician records in Illinois

  1. Peter Abadeer, D.O.Bloomington, IL1760469522
  2. Motaz Abas, MDPeoria, IL1215510201
  3. Elias Abate, M.D.Chicago, IL1336712199
  4. Maliha Abbas, D.O.Chicago, IL1174963920
  5. Zareena Abbas, MDChicago, IL1427078872
  6. Abu Abbasi, MDChicago, IL1083243877
  7. Ayesha Abbasi, MDChicago, IL1376216705
  8. Khalda Abbasi, MDNaperville, IL1487705240
  9. Elmer Abbo, MDBurr Ridge, IL1710048541
  10. Paul Abbo, M.D.River Forest, IL1083693378

Common questions

What is John Thornton Fox, MD's NPI number?

John Thornton Fox, MD's National Provider Identifier (NPI) is 1619073145, issued on Sep 15, 2006. An NPI identifies a provider in billing; it is not a license.

Where is John Thornton Fox, MD located?

The NPPES record lists a practice address at 500 N Hicks RD, Palatine, IL, 60067. Phone: (847) 221-8700. Providers update this record themselves, so call before visiting.

How can I verify John Thornton Fox, MD's license?

NPPES lists Illinois license number 036064952, 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.