Margaret Sutton O'Brien
Psychiatry Physician · Chicago, IL
Margaret Sutton O'Brien is a psychiatry physician with a practice address in Chicago, Illinois, and NPI 1134700495, issued on Apr 19, 2021. Check the license (Illinois 036168037, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Margaret Sutton O'Brien
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- 036168037 IL
Self-reported in NPPES; status is on the state search - Practice location
- 5841 S Maryland Ave # 3077, Chicago, IL 60637
- Phone
- (773) 834-0373
- Enumerated
- Apr 19, 2021
- Record last updated
- Sep 4, 2025
- Medicare enrollment
- Enrolled (PECOS I20250916002210); accepts Medicare assignment
- Medical or professional school
- University Of Texas Medical School At Houston, 2021
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Also registered at 5841 S Maryland Ave # 3077
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Marcel Bertsch-Gout, MDPsychiatry Physician1477173177
- Ananya Munjal, MDChild & Adolescent Psychiatry Physician1972208353
- Fae Nova, MD, PHD, MSStudent in an Organized Health Care Education/Training Program1215878269
- Natalia RoquePsychiatry Physician1871175794
Verify Margaret Sutton O'Brien 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 036168037Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
77% fewer Medicare Part D claims than the average psychiatry physician in 2024
228 Medicare Part D claims for 49 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D.
Most prescribed
- Trazodone Hcl32 claims
- Duloxetine Hcl19 claims
- Sertraline Hcl18 claims
- Lorazepam17 claims
- Escitalopram Oxalate16 claims
- Gabapentin14 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.
2 hospitals and group practices
- The University OF Chicago Medical CenterChicago, IL · Acute Care Hospitals4 of 5 stars
- University OF ChicagoChicago, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
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 841 in Chicago → All 2,147 in Illinois → Every provider in Chicago →
Other psychiatry physician records in Illinois
- Alexandra Aaronson, M.D.Chicago, IL1881937928
- Anthony Abadir, MDOak Park, IL1295312551
- Huma Abbas, M.D.Aurora, IL1609039163
- Jeff Abbott, M.D.Chicago, IL1265887509
- Kathryn AbbottChicago, IL1295537561
- Gil Abelita, MDBloomington, IL1619986551
- Dinuk Abeysekera, M.D.North Chicago, IL1366616534
- Patrick Abler, DOSpringfield, IL1770158537
- Rohit Abraham, MD, MPH, MATChicago, IL1013478932
- Richard AbramsChicago, IL1003992413
Common questions
What is Margaret Sutton O'Brien's NPI number?
Margaret Sutton O'Brien's National Provider Identifier (NPI) is 1134700495, issued on Apr 19, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Margaret Sutton O'Brien located?
The NPPES record lists a practice address at 5841 S Maryland Ave # 3077, Chicago, IL, 60637. Phone: (773) 834-0373. Providers update this record themselves, so call before visiting.
How can I verify Margaret Sutton O'Brien's license?
NPPES lists Illinois license number 036168037, 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 Margaret Sutton O'Brien prescribe under Medicare Part D?
In 2024, Margaret Sutton O'Brien had 228 Medicare Part D claims for 49 beneficiaries; 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.