Bonnie William Thomas, MD
Internal Medicine Physician · Chicago, IL
Bonnie William Thomas, MD is an internal medicine physician with a practice address in Chicago, Illinois, and NPI 1851321467, issued on Jul 3, 2006. Check the license (Illinois 036101029, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Bonnie William Thomas
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- 036101029 IL
036102029 IL
Self-reported in NPPES; status is on the state search - Practice location
- 1525 E 55TH St, Chicago, IL 60615
- Phone
- (773) 548-3957
- Enumerated
- Jul 3, 2006
- Record last updated
- Jan 6, 2022
- Fax
- (773) 753-5590
- Medicaid ID
- 036102029 IL
- Medicare enrollment
- Enrolled (PECOS I20110221000956); accepts Medicare assignment
- Medical or professional school
- Illinois Medical College, 1997
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 7,238 in Illinois → Look up another NPI →
Also registered at 1525 E 55TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Romina Kee, M.D.Obstetrics & Gynecology Physician1326077579
- Lauren Koby, PSYDClinical Psychologist1003374521
- Samantha Lin, FNP-BC, MS, MPHFamily Nurse Practitioner1538756440
- Julia Somerville, LCSWClinical Social Worker1407305170
- Crystal Swenson, LPCProfessional Counselor1285364075
- India Willis, APNFamily Nurse Practitioner1518476688
Verify Bonnie William Thomas 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 036101029Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
73% fewer Medicare Part D claims than the average internal medicine physician in 2024
867 Medicare Part D claims for 107 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 23% of claims. 50 claims were for opioids.
Most prescribed
- Albuterol Sulfate Hfa50 claims
- Amlodipine Besylate41 claims
- Biktarvy40 claims
- Tramadol Hcl35 claims
- Atorvastatin Calcium32 claims
- Gabapentin28 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: $7,103.47
142 payments; by number, the most common kind was food and beverage; the largest payer was Theratechnologies 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.
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
- Howard Brown Health CenterChicago, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Bonnie William Thomas among 7,238 internal medicine physician records in Illinois
Bonnie William Thomas, MD is one of 7,238 internal medicine physician records with a practice address in Illinois. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 7% of them.
- NPI issued2006 · 7% of these records are older, 61% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 50% of these records are
- Graduated1997 · median 2003 among the 3,580 with a school on file
- Record last updated2022 · 47% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
2,867 internal medicine physician records list a practice address in Chicago
They are 2,867 of the 63,379 NPPES records with a practice address in Chicago, and 7,238 internal medicine physician records in Illinois.
All 7,238 in Illinois → Every provider in Chicago → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Deepa Arla, D.O.Chicago, IL 606151144478231
- Jennifer Colleton, M.D.Chicago, IL 606151376743260
- Dianne Collins, M.D.Chicago, IL 606151164483087
- Geetha Govindarajan, M.D., PH.D., M.P.HChicago, IL 606151982885794
- Aaron Hamb, M.D.Chicago, IL 606151861433039
- Trent Haywood, MD, JDChicago, IL 606151962583005
- Arthur Moswin, M.D.Chicago, IL 606151023120094
- Jan Roberts, MDChicago, IL 606151639205156
Common questions
What is Bonnie William Thomas, MD's NPI number?
Bonnie William Thomas, MD's National Provider Identifier (NPI) is 1851321467, issued on Jul 3, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Bonnie William Thomas, MD located?
The NPPES record lists a practice address at 1525 E 55TH St, Chicago, IL, 60615. Phone: (773) 548-3957. Providers update this record themselves, so call before visiting.
How can I verify Bonnie William Thomas, MD's license?
NPPES lists Illinois license number 036101029, 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 Bonnie William Thomas, MD prescribe under Medicare Part D?
In 2024, Bonnie William Thomas, MD had 867 Medicare Part D claims for 107 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.