Thomas William Allen, MD
Psychiatry Physician · Chicago, IL
Thomas William Allen, MD is a psychiatry physician with a practice address in Chicago, Illinois, and NPI 1891900197, issued on May 11, 2007. Check the license on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Thomas William Allen
- Credential
- MD
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- Practice location
- 446 E Ontario St, Chicago, IL 60611
- Phone
- (312) 926-8638
- Enumerated
- May 11, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (312) 926-7960
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 2,147 in Illinois → Look up another NPI →
Also registered at 446 E Ontario St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Alexandra Aaronson, M.D.Psychiatry Physician1881937928
- Gaurava Agarwal, M.D.Psychiatry Physician1043467871
- Alison Alden, PH.D.Counselor1760762686
- Chetan Amar, M.D.Student in an Organized Health Care Education/Training Program1053775585
- Carolyn Auffenberg, M.D.Psychiatry Physician1306132089
- Shirley Baron, PHDClinical Psychologist1265429195
Verify Thomas William Allen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional RegulationCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $33.06
1 payment: food and beverage; the largest payer was Boehringer Ingelheim Pharmaceuticals, Inc. The 13,693 providers of this specialty with any payment received $4,954.93 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.
Thomas William Allen among 2,147 psychiatry physician records in Illinois
Thomas William Allen, MD is one of 2,147 psychiatry physician records with a practice address in Illinois. 69% 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 35% of them.
- NPI issued2007 · 35% of these records are older, 50% newer
- In a Medicare fileYes · 69% of these records are
- In the CMS Doctors and Clinicians fileNo · 41% of these records are
- Record last updated2007 · 53% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
841 psychiatry physician records list a practice address in Chicago
They are 841 of the 63,379 NPPES records with a practice address in Chicago, and 2,147 psychiatry physician records in Illinois.
All 2,147 in Illinois → Every provider in Chicago → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Ghada Albeheary, MDChicago, IL 606111477534576
- Joan Anzia, MDChicago, IL 606111528039658
- Lydia Breen, MDChicago, IL 606111518926203
- Kenneth Cohen, M.D.Chicago, IL 606111952366551
- Pedro Dago, MDChicago, IL 606111689637639
- John Gerber, M.D.Chicago, IL 606111447216544
- Larry Goldman, M.D.Chicago, IL 606111851356752
- Jonathon Goldman, M.D.Chicago, IL 606111427013374
Common questions
What is Thomas William Allen, MD's NPI number?
Thomas William Allen, MD's National Provider Identifier (NPI) is 1891900197, issued on May 11, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Thomas William Allen, MD located?
The NPPES record lists a practice address at 446 E Ontario St, Chicago, IL, 60611. Phone: (312) 926-8638. Providers update this record themselves, so call before visiting.
How can I verify Thomas William Allen, MD's license?
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. 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.