Dean Matthew Marella, MD

Primary specialty

Critical Care Medicine (Internal Medicine) PhysicianTaxonomy code 207RC0200X

License

25MA11048500 Issued in NJ

Practice address

95 Madison Ave Ste 300
Morristown, NJ 07960-6389

Phone

(973) 898-0400

Fax

(973) 753-0020

NPI assigned

Mar 31, 2018

Sex

Male

Sole proprietor

Yes

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 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

Cardiovascular Disease (Cardiology)Also: Critical Care (Intensivists)

Education

Cooper Medical School of Rowan University, 2018

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Practice Associates Medical GroupGroup PAC ID 5890703177, 1,412 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

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

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: dmarella411442@direct.ahsys.org

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.

• Practice Associates Medical Group

  • Internal Medicine Physician
  • Morristown, NJ
  • NPI 1427016385
  Medicare reassignment Care Compare group NPD

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

• Ahs Hospital Corp.

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

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

  • 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": "1522454400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1763337600000",
    "number": "1427554393",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 416457",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "022416457",
            "telephone_number": "844-362-1735",
            "fax_number": "973-290-7495"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "95 MADISON AVE STE 300",
            "city": "MORRISTOWN",
            "state": "NJ",
            "postal_code": "079606389",
            "telephone_number": "973-898-0400",
            "fax_number": "973-753-0020"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "50 Cherry Hill Rd Ste 301",
            "address_purpose": "LOCATION",
            "city": "Parsippany",
            "state": "NJ",
            "postal_code": "070541101",
            "country_code": "US",
            "telephone_number": "973-970-7048",
            "fax_number": "973-331-8124",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "MARELLA",
        "first_name": "DEAN",
        "middle_name": "MATTHEW",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2018-03-31",
        "last_updated": "2025-11-17",
        "certification_date": "2025-11-17",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RC0200X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Critical Care Medicine",
            "state": "NJ",
            "license": "25MA11048500",
            "primary": true
        },
        {
            "code": "207RC0000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Cardiovascular Disease",
            "state": "NJ",
            "license": "25MA11048500",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Mateusz Adam Marchut, COTA
• Leo Marcoff, MD
• Maia Marcs, LCSW
• Marcus Counseling
• Pamela Marel
• Maren R Smithgall OD LLC
• Debra J Margulies, M.D.
• Madeline Margulies, DO
• Kathryn Marietto
• Mark a. Oliver, M.D.,P.a.

• Critical Care Medicine (Internal Medicine) Physician in Morristown, NJ
• Providers in Morristown, NJ by specialty
• Critical Care Medicine (Internal Medicine) Physician in New Jersey

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Nov 17, 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.