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DR. ROSEMARY SIROUN MATOSSIAN MD
NPI 1053999060
Emergency Medicine in Harvey, IL

Active since March 31, 2021PECOS EnrolledAccepts Medicare Assignment
1 INGALLS DR, HARVEY, IL 60426(708) 915-5290 Get Directions Write a Review

NPPES record last updated: July 28, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. Rosemary Siroun Matossian Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. ROSEMARY SIROUN MATOSSIAN MD (NPI 1053999060) is an individual emergency medicine provider in Harvey, Illinois, licensed in Illinois (036175172) and active in the NPI registry since March 2021. She is enrolled in Medicare PECOS, is affiliated with Ingalls Memorial Hospital, and maintains a secondary practice location in Bronx.

NPPES Registry Identity

NPI1053999060
Entity TypeIndividualFemale
Primary Taxonomy207P00000X
Provider Legal NameDR. ROSEMARY SIROUN MATOSSIANCredential: MD
Location Address1 INGALLS DRHarvey, IL 60426-3558
Mailing Address1 Ingalls DrHarvey, IL 60426-3558 · (708) 915-5290
Phone(708) 915-5290
Sole ProprietorNo
Medical School CMSTulane University School Of MedicineGraduated 2021
Enumeration DateMarch 31, 2021
Last NPPES UpdateJuly 28, 2025
NPPES CertifiedJuly 28, 2025
✔ NPI 1053999060 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
License✔ Licensed in IL · 036175172
Definition
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
1 INGALLS DR, Harvey, IL 60426
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Secondary Practice Location 1

Location 11400 Pelham Pkwy S, Building 6 Suite B125Bronx, NY 10461-1138 · Phone (718) 918-5820

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Rosemary Siroun Matossian Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID1658887427
PECOS Enrollment IDI20250718002273
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Ingalls Memorial Hospital

Acute Care Hospitals · Harvey, IL
2/5 CMS rating
OwnershipPhysician
CMS Certification Number140191
Location1 Ingalls DriveHarvey, IL 60426 · Cook County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60426 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$94.06 typical visit price
range $60.08 – $183.39
Typical copayment $23.51 (range $15.02 – $45.84)
Most-billed visit code 99203
Established Patient
$105.70 typical visit price
range $18.97 – $148.12
Typical copayment $26.42 (range $4.74 – $37.03)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MARGARET ANN WOODS R.D.
Dietitian, Registered
1 INGALLS DR, INGALLS MEMORIAL HOSPITAL
HARVEY, IL 60426
Cook County (708) 915-7534
INGALLS MEMORIAL HOSPITAL
Rehabilitation Unit
1 INGALLS DR
HARVEY, IL 60426
Cook County (708) 915-6107
MRS. SARA C SUNGKAPAN MS, OTR/L
Occupational Therapist
1 INGALLS DR
HARVEY, IL 60426
Cook County (708) 915-5962
ASSOCIATED LABORATORY PHYSICIANS SC
Pathology (Anatomic Pathology & Clinical Pathology)
1 INGALLS DR, PATHOLOGY DEPT.
HARVEY, IL 60426
Cook County (708) 915-5763
MARK STOSSEL M.D.
Emergency Medicine
1 INGALLS DR
HARVEY, IL 60426
Cook County (708) 332-2300
MRS. NANCY R. DUMONT OT
Rehabilitation Hospital
1 INGALLS DR
HARVEY, IL 60426
Cook County (708) 333-2300
LARRY L FOSTER P.A.
Physician Assistant
1 INGALLS DR
HARVEY, IL 60426
Cook County (708) 332-2300
JUDITH NG WEN RDN
Dietitian, Registered
1 INGALLS DR
HARVEY, IL 60426
Cook County (708) 915-5945

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Rosemary Matossian's NPI number?

The NPI number for Rosemary Matossian is 1053999060. It was assigned to this individual provider in the NPPES registry on March 31, 2021.

Where is Rosemary Matossian located?

Rosemary Matossian practices at 1 Ingalls Dr, Harvey, IL 60426. The listed phone number is (708) 915-5290.

What is Rosemary Matossian's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Is Rosemary Matossian enrolled in Medicare?

Yes. Rosemary Matossian is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Is Rosemary Matossian affiliated with any hospitals?

According to CMS data, Rosemary Matossian is affiliated with Ingalls Memorial Hospital.

When was this NPI record last updated?

The NPPES record for Rosemary Matossian was last updated on July 28, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.