Matthew D Iammatteo, M.D.

Primary specialty

SpecialistTaxonomy code 174400000X

License

MA051863 Issued in NJ

Practice address

111 Madison Ave
Suite 311
Morristown, NJ 07960-6097

Phone

(973) 971-9950

NPI assigned

Apr 10, 2006

Last updated

Jul 13, 2026By the provider in NPPES

Sex

Male

Sole proprietor

No

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

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Enrolled in NJ

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

Obstetrics/Gynecology

Education

Other, 1985

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Lifeline Medical Associates LLCGroup PAC ID 1456332170, 155 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Morristown Medical Center Hospital, Morristown, NJ, CCN 310015
• Saint Clare's Hospital/ Denville Campus Hospital, Denville, NJ, CCN 310050
• Overlook Medical Center Hospital, Summit, NJ, CCN 310051

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• FHIR API: https://fhir.nextgen.com/nge/prod/fhir-api-r4/fhir/r4/
• Direct secure messaging: matthew.iammatteo.1@27010.direct.athenahealth.com

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

• Lifeline Medical Associates, LLC

  • Obstetrics & Gynecology Physician
  • Florham Park, NJ
  • NPI 1821041617
  Medicare reassignment Care Compare group NPD

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

• Ahs Hospital Corp.

  dba Morristown Medical Center

  • General Acute Care Hospital
  • Morristown, NJ
  • NPI 1053384776
  Care Compare affiliation
• Ahs Hospital Corp.

  dba Overlook Hospital

  • General Acute Care Hospital
  • Summit, NJ
  • NPI 1740254143
  Care Compare affiliation
• Prime Healthcare Services - Saint Clare's LLC

  dba Saint Clare's Hospital

  • General Acute Care Hospital
  • Denville, NJ
  • NPI 1598144362
  Care Compare affiliation

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

{
    "created_epoch": "1144627200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1346203593",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "111 MADISON AVE",
            "address_2": "SUITE 311",
            "city": "MORRISTOWN",
            "state": "NJ",
            "postal_code": "079606097",
            "telephone_number": "973-971-9950"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "111 MADISON AVE",
            "address_2": "SUITE 311",
            "city": "MORRISTOWN",
            "state": "NJ",
            "postal_code": "079606097",
            "telephone_number": "973-971-9950"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "IAMMATTEO",
        "first_name": "MATTHEW",
        "middle_name": "D",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-04-10",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "174400000X",
            "taxonomy_group": "",
            "desc": "Specialist",
            "state": "NJ",
            "license": "MA051863",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Beth Ann Hyken, LCSW
• Michelle Christine Hyman, LCSW
• Margaret Hynes, MA, LAC, NCC
• Stephanie Hyon
• Hailey K Hyun
• Elena Iannacito
• Ryan Ibrahim, PHARMD
• Imran Malik Ilahi
• Donna Ilardi, NP
• Imaging Associates PA (MRImaging of Morristown)

• Specialist in Morristown, NJ
• Providers in Morristown, NJ by specialty
• Specialist in New Jersey

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 2026; 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.