Rosemary Siroun Matossian, MD
Emergency Medicine Physician · Harvey, IL
Rosemary Siroun Matossian, MD is an emergency medicine physician with a practice address in Harvey, Illinois, and NPI 1053999060, issued on Mar 31, 2021. Check the license (Illinois 036175172, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Rosemary Siroun Matossian
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 036175172 IL
Self-reported in NPPES; status is on the state search - Practice location
- 1 Ingalls Dr, Harvey, IL 60426
- Phone
- (708) 915-5290
- Enumerated
- Mar 31, 2021
- Record last updated
- Jul 28, 2025
- Medicare enrollment
- Enrolled (PECOS I20250718002273); accepts Medicare assignment
- Medical or professional school
- Tulane University School Of Medicine, 2021
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 3,291 in Illinois → Look up another NPI →
Also registered at 1 Ingalls Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Aziz Abed, M.D.Emergency Medicine Physician1477874154
- Viquar Ahmed, P.A.-CPhysician Assistant1811148059
- Madad Ali, M.D.Gastroenterology Physician1376564815
- Holden AndradeFamily Nurse Practitioner1336850775
- John Baldwin, DOEmergency Medicine Physician1386022432
- Judith Bazil, PTPhysical Therapist1356061568
Verify Rosemary Siroun Matossian 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 036175172Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
90% fewer Medicare Part D claims than the average emergency medicine physician in 2024
23 Medicare Part D claims for 13 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.
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
- Harvey Emergency Physicians PLLCHarvey, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Rosemary Siroun Matossian among 3,291 emergency medicine physician records in Illinois
Rosemary Siroun Matossian, MD is one of 3,291 emergency medicine physician records with a practice address in Illinois. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 82% of them.
- NPI issued2021 · 82% of these records are older, 15% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 57% of these records are
- Graduated2021 · median 2012 among the 1,867 with a school on file
- Record last updated2025 · 47% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
10 emergency medicine physician records list a practice address in Harvey
They are 10 of the 297 NPPES records with a practice address in Harvey, and 3,291 emergency medicine physician records in Illinois.
All 3,291 in Illinois → Every provider in Harvey → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Aziz Abed, M.D.Harvey, IL 604261477874154
- John Baldwin, DOHarvey, IL 604261386022432
- Bernard Heilicser, D.O.Harvey, IL 604261750416152
- Atul Joshi, D.O.Harvey, IL 604261437361722
- Anna Lin, D.OHarvey, IL 604261366948820
- Christen Morrow, M.D.Harvey, IL 604261982647293
- Saif Nazir, M.D.Harvey, IL 604261619914496
- Sharonda Shaw-Berrocal, DOHarvey, IL 604261417156274
Common questions
What is Rosemary Siroun Matossian, MD's NPI number?
Rosemary Siroun Matossian, MD's National Provider Identifier (NPI) is 1053999060, issued on Mar 31, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Rosemary Siroun Matossian, MD located?
The NPPES record lists a practice address at 1 Ingalls Dr, Harvey, IL, 60426. Phone: (708) 915-5290. Providers update this record themselves, so call before visiting.
How can I verify Rosemary Siroun Matossian, MD's license?
NPPES lists Illinois license number 036175172, 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 Rosemary Siroun Matossian, MD prescribe under Medicare Part D?
In 2024, Rosemary Siroun Matossian, MD had 23 Medicare Part D claims for 13 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.