Leah M. Ustas, M.D.
Psychiatry Physician · Oak Lawn, IL
Leah M. Ustas, M.D. is a psychiatry physician with a practice address in Oak Lawn, Illinois, and NPI 1033328869, issued on May 21, 2007. Check the license (Illinois 036.122642, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Leah M. Ustas
- Credential
- M.D.
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- 036.122642 IL
Self-reported in NPPES; status is on the state search - Practice location
- 4440 W 95TH St, Oak Lawn, IL 60453
- Phone
- (708) 684-7482
- Enumerated
- May 21, 2007
- Record last updated
- May 12, 2022
- Medicare enrollment
- Enrolled (PECOS I20090917000469); accepts Medicare assignment
- Medical or professional school
- Tulane University School Of Medicine, 2005
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 2,147 in Illinois → Look up another NPI →
Also registered at 4440 W 95TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Nadia Abdessalam, FNP-BCFamily Nurse Practitioner1356888283
- Akram Abdoue, M.D.Anesthesiology Physician1992752489
- Ahmad Abdulla, MDEmergency Medicine Physician1467202556
- Joseph Abraham, CRNACertified Registered Nurse Anesthetist1831653401
- Katherine Absalon, MOT, OTR/LOccupational Therapist1457753436
- Tassneem Abu-Rezeq, DNP, APRN, CPNP-ACPediatric Nurse Practitioner1831904663
Verify Leah M. Ustas 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 036.122642Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% fewer Medicare Part D claims than the average psychiatry physician in 2024
43 Medicare Part D claims, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of 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.
Bills Medicare through one group practice
- Advocate Health And Hospitals CorporationOak Lawn, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Leah M. Ustas among 2,147 psychiatry physician records in Illinois
Leah M. Ustas, M.D. 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 fileYes · 41% of these records are
- Graduated2005 · median 2004 among the 877 with a school on file
- Record last updated2022 · 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).
Psychiatry Physician providers in Illinois
There are 2,147 psychiatry physician records in Illinois.
All 2,147 in Illinois → Every provider in Oak Lawn → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Utpal Dhruve, M.D.Oak Lawn, IL 604531013112333
- Paul Dobransky, MDOak Lawn, IL 604531013098631
- Daniel Eckroth, M.D.Oak Lawn, IL 604531932465333
- Sudhir Gokhale, M.D.Oak Lawn, IL 604531639182678
- Nisha Gokhale, M.D.Oak Lawn, IL 604531679913768
- David Kemp, MDOak Lawn, IL 604531710061486
- Julie Land, M.D.Oak Lawn, IL 604531689817942
- Joanne Orfei, DOOak Lawn, IL 604531497098230
Common questions
What is Leah M. Ustas, M.D.'s NPI number?
Leah M. Ustas, M.D.'s National Provider Identifier (NPI) is 1033328869, issued on May 21, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Leah M. Ustas, M.D. located?
The NPPES record lists a practice address at 4440 W 95TH St, Oak Lawn, IL, 60453. Phone: (708) 684-7482. Providers update this record themselves, so call before visiting.
How can I verify Leah M. Ustas, M.D.'s license?
NPPES lists Illinois license number 036.122642, 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 Leah M. Ustas, M.D. prescribe under Medicare Part D?
In 2024, Leah M. Ustas, M.D. had 43 Medicare Part D claims; the average among psychiatry physician prescribers was 1,000. 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.