Rosemary Siroun Matossian, MD

Primary specialty

Emergency Medicine PhysicianTaxonomy code 207P00000X

License

036175172 Issued in IL

Practice address

1 Ingalls Dr
Harvey, IL 60426-3558

Phone

(708) 915-5290

NPI assigned

Mar 31, 2021

Sex

Female

Sole proprietor

No

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 2

Addresses

Medicare fee-for-service enrollment

Enrolled in IL

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: Yes

Green means eligible to order or refer.

Enrollment records 1

Specialty

Emergency Medicine

Education

Tulane University School of Medicine, 2021

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Harvey Emergency Physicians PLLCGroup PAC ID 9436486560, 50 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Ingalls Memorial Hospital Hospital, Harvey, IL, CCN 140191

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: rmatossianmd347446@uchospital.direct-ci.com

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

• Harvey Emergency Physicians, PLLC

  • Emergency Medicine Physician
  • Calumet City, IL
  • NPI 1184281651
  Medicare reassignment Care Compare group NPD
• Jacobi Medical Center Ed

  • General Acute Care Hospital
  • Bronx, NY
  • NPI 1023396801
  NPD (past)

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

• Ingalls Memorial Hospital

  • General Acute Care Hospital
  • Harvey, IL
  • NPI 1598756686
  Care Compare affiliation

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1617148800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1753660800000",
    "number": "1053999060",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1 INGALLS DR",
            "city": "HARVEY",
            "state": "IL",
            "postal_code": "604263558",
            "telephone_number": "708-915-5290"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1 INGALLS DR",
            "city": "HARVEY",
            "state": "IL",
            "postal_code": "604263558",
            "telephone_number": "708-915-5290"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1400 Pelham Pkwy S",
            "address_2": "Building 6 Suite B125",
            "address_purpose": "LOCATION",
            "city": "Bronx",
            "state": "NY",
            "postal_code": "104611138",
            "country_code": "US",
            "telephone_number": "718-918-5820",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "MATOSSIAN",
        "first_name": "ROSEMARY",
        "middle_name": "SIROUN",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2021-03-31",
        "last_updated": "2025-07-28",
        "certification_date": "2025-07-28",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "IL",
            "license": "036175172",
            "primary": true
        },
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": null,
            "license": null,
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Mathew W Maccumber, MD
• Balaji Malur, MD
• Michael Steven Marinko, M.D.
• Martin G Luken III MD SC
• Donna Martinek, CNS
• Shirley Ann McCann, RNC NP
• Leonora McClelland-Sandridge
• Bernice Lynette McLaurin, PHARMD
• Timothy Donald McManus, PSY.D.
• Latina McMillan

• Emergency Medicine Physician in Harvey, IL
• Providers in Harvey, IL by specialty
• Emergency Medicine Physician in Illinois

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 28, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.