Lydia Breen, MD
Psychiatry Physician · Chicago, IL
Lydia Breen, MD is a psychiatry physician with a practice address in Chicago, Illinois, and NPI 1518926203, issued on Mar 21, 2006. Check the license on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Lydia Breen
- Credential
- MD
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- Practice location
- 211 E Ontario St, Chicago, IL 60611
- Phone
- (773) 381-3421
- Enumerated
- Mar 21, 2006
- Entity
- Type 1 · individual
Also registered at 211 E Ontario St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- John Anderson, PH.D.Psychologist1356483424
- Dawn AnthonyAdult Health Nurse Practitioner1174706683
- Elizabeth Apolonio, MDInternal Medicine Physician1013017185
- Andrew Berg, MDEmergency Medicine Physician1336535921
- Charles Caffrey, M.D.Emergency Medicine Physician1104243138
- Rebecca Caton, M.D.Emergency Medicine Physician1528323979
Verify Lydia Breen 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
95% fewer Medicare Part D claims than the average psychiatry physician in 2024
47 Medicare Part D claims, against an average of 1,010 among the 32,287 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Alprazolam13 claims
- Sertraline Hcl12 claims
- Trazodone Hcl11 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.
766 psychiatry physician records list a Chicago practice address
They are 766 of the 63,379 NPPES records with a Chicago practice address, and 2,003 psychiatry physician records in Illinois.
All 766 in Chicago → All 2,003 in Illinois → Every provider in Chicago →
Other psychiatry physician records in Illinois
- Alexandra Aaronson, M.D.Chicago, IL1881937928
- Anthony Abadir, MDOak Park, IL1295312551
- Jeff Abbott, M.D.Chicago, IL1265887509
- Kathryn AbbottChicago, IL1295537561
- Gil Abelita, MDBloomington, IL1619986551
- Dinuk Abeysekera, M.D.North Chicago, IL1366616534
- Patrick Abler, DOSpringfield, IL1770158537
- Jenny Abraham, APNDowners Grove, IL1396322392
- Rohit Abraham, MD, MPH, MATChicago, IL1013478932
- Constantin Abuzatoaie, M.D.Hoffman Estates, IL1477817062
Common questions
What is Lydia Breen, MD's NPI number?
Lydia Breen, MD's National Provider Identifier (NPI) is 1518926203, issued on Mar 21, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Lydia Breen, MD located?
The NPPES record lists a practice address at 211 E Ontario St, Chicago, IL, 60611. Phone: (773) 381-3421. Providers update this record themselves, so call before visiting.
How can I verify Lydia Breen, 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.
How much does Lydia Breen, MD prescribe under Medicare Part D?
In 2024, Lydia Breen, MD had 47 Medicare Part D claims; the average among psychiatry physician prescribers was 1,010. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.