NPPES file of Aug 9, 2026

Shon Thomas, MD

Internal Medicine Physician · Deerfield, IL

Shon Thomas, MD is an internal medicine physician with a practice address in Deerfield, Illinois, and NPI 1811634579, issued on May 15, 2022. Check the license (Illinois 036173743, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1811634579
Name
Shon Thomas
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
036173743 IL
Self-reported in NPPES; status is on the state search
Practice location
49 S Waukegan RD Ste 100, Deerfield, IL 60015
Phone
(847) 945-4575
Enumerated
May 15, 2022
Record last updated
Aug 14, 2025
Fax
(847) 945-4593
Medicare enrollment
Enrolled (PECOS I20250826003213); accepts Medicare assignment
Medical or professional school
Loyola University Of Chicago, Stritch School Of Medicine, 2022
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 49 S Waukegan RD Ste 100

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

  1. Belinda Chen, MDPediatrics Physician1932127701
  2. Andrew Johnson, MDPediatrics Physician1639465131
  3. Charles Obrien, MDPediatrics Physician1124050182
  4. Sara Wiemer, M.D.Pediatrics Physician1386890416

Verify Shon Thomas 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 036173743
    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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86% fewer Medicare Part D claims than the average internal medicine physician in 2024

435 Medicare Part D claims for 82 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 11 claims were for opioids.

  1. Shon Thomas435
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium52 claims
  2. Amlodipine Besylate35 claims
  3. Lisinopril20 claims
  4. Levothyroxine Sodium15 claims
  5. Olmesartan-Hydrochlorothiazide14 claims
  6. Chlorthalidone12 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.

Industry payments in 2024: $62.65

3 payments; by number, the most common kind was food and beverage; the largest payer was Eisai Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Shon Thomas$62.65
  2. Specialty average$1,303.06

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Endeavor Health Medical GroupEvanston, IL

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

21 internal medicine physician records list a practice address in Deerfield

They are 21 of the 712 NPPES records with a practice address in Deerfield, and 7,238 internal medicine physician records in Illinois.

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 Shon Thomas, MD's NPI number?

Shon Thomas, MD's National Provider Identifier (NPI) is 1811634579, issued on May 15, 2022. An NPI identifies a provider in billing; it is not a license.

Where is Shon Thomas, MD located?

The NPPES record lists a practice address at 49 S Waukegan RD Ste 100, Deerfield, IL, 60015. Phone: (847) 945-4575. Providers update this record themselves, so call before visiting.

How can I verify Shon Thomas, MD's license?

NPPES lists Illinois license number 036173743, 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.

How much does Shon Thomas, MD prescribe under Medicare Part D?

In 2024, Shon Thomas, MD had 435 Medicare Part D claims for 82 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.