Alex Thomas, M.D.
Allergy Physician · Chicago, IL
Alex Thomas, M.D. is an allergy physician with a practice address in Chicago, Illinois, and NPI 1265632574, issued on Jul 24, 2007. Check the license (Illinois 336.135822, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Alex Thomas
- Credential
- M.D.
- Primary taxonomy
- Allergy Physician 207KA0200X
- License numbers
- 336.135822 IL
53149 WI
Self-reported in NPPES; status is on the state search - Practice location
- 4014 N Central Ave, Chicago, IL 60634
- Phone
- (773) 283-9594
- Enumerated
- Jul 24, 2007
- Record last updated
- Nov 11, 2025
- Fax
- (773) 283-6711
- Medicare enrollment
- Enrolled (PECOS I20150403000610); accepts Medicare assignment
- Medical or professional school
- Rush Medical College Of Rush University, 2007
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest allergy physician records → All 56 in Illinois → Look up another NPI →
Also registered at 4014 N Central Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Dolly Thomas, MDAllergy & Immunology Physician1255359857
Verify Alex 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 336.135822Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
5% fewer Medicare Part D claims than the average allergy physician in 2024
710 Medicare Part D claims for 101 beneficiaries, against an average of 750 among the 645 providers of this specialty who prescribed in Part D. Brand-name drugs were 28% of claims.
Most prescribed
- Montelukast Sodium145 claims
- Albuterol Sulfate Hfa68 claims
- Azelastine Hcl68 claims
- Fluticasone Propionate60 claims
- Famotidine39 claims
- Prednisone39 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: $1,549.93
57 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 502 providers of this specialty with any payment received $9,080.33 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.
Alex Thomas among 56 allergy physician records in Illinois
Alex Thomas, M.D. is one of 56 allergy physician records with a practice address in Illinois. 66% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 75% of them.
- NPI issued2007 · 75% of these records are older, 14% newer
- In a Medicare fileYes · 66% of these records are
- In the CMS Doctors and Clinicians fileYes · 34% of these records are
- Graduated2007 · median 1997 among the 19 with a school on file
- Record last updated2025 · 75% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207KA0200X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Allergy Physician providers in Illinois
There are 56 allergy physician records in Illinois.
All 56 in Illinois → Every provider in Chicago → Allergy Physician nationwide →
The 8 allergy physician records with the nearest ZIP codes
- Kajorndej Komutanon, MDChicago, IL 606251528069804
- Brian RotskoffChicago, IL 606461285662304
- Edward Lisberg, MDChicago, IL 606471972519320
- Bruce Bochner, M.D.Chicago, IL 606111871559989
- Anne Ditto, MDChicago, IL 606111831276872
- Athanasios Konstantinidis, M.D.Chicago, IL 606111437329794
- Fei Li Kuang, M.D., PH.D.Chicago, IL 606111043536832
- Laura Rogers, M.D.Chicago, IL 606111639154156
Common questions
What is Alex Thomas, M.D.'s NPI number?
Alex Thomas, M.D.'s National Provider Identifier (NPI) is 1265632574, issued on Jul 24, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Alex Thomas, M.D. located?
The NPPES record lists a practice address at 4014 N Central Ave, Chicago, IL, 60634. Phone: (773) 283-9594. Providers update this record themselves, so call before visiting.
How can I verify Alex Thomas, M.D.'s license?
NPPES lists Illinois license number 336.135822, 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 Alex Thomas, M.D. prescribe under Medicare Part D?
In 2024, Alex Thomas, M.D. had 710 Medicare Part D claims for 101 beneficiaries; the average among allergy physician prescribers was 750. 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.