Individual provider Active NPI

Marissa McCarron, PA

  • Physician Assistant
  • Islandia, NY
National Provider Identifier
1689804593
Registry record updated Mar 26, 2019
On this page

Key facts

NPPES NPI Registry
Primary specialty
Physician AssistantTaxonomy code 363A00000X
Practice address
3001 Expressway Dr N Ste 104
Islandia, NY 11749-5301
Phone
(631) 435-0110
NPI assigned
Jul 27, 2009
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Mar 26, 2019

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Physician Assistant 363A00000X Primary

Addresses

Primary practice location

3001 Expressway Dr N Ste 104
Islandia, NY 11749-5301

Mailing address

35 Perri Cir
Middle Island, NY 11953-2660

Other practice location 1

1743 N Ocean Ave
Medford, NY 11763-2649
Phone (631) 758-3100

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in NY
Eligible to order & refer
  • Part B services: Yes
  • Medical equipment: Yes
  • Home health: Yes
  • Power mobility devices: Yes
  • Hospice: No
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20110419000780 NY Practitioner - Physician Assistant 8123203056 Reassigns benefits to 4 organizations

Care Compare profile

Medicare Care Compare
Specialty
Physician Assistant
Education
Other, 2009
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Samaritan Medical Services PCGroup PAC ID 7012016009, 341 clinicians

Practice addresses (Care Compare)

1000 Montauk Hwy
West Islip, NY 11795-4927
Phone (516) 705-2689

200 Belle Terre Rd
Port Jefferson, NY 11777-1928
Phone (631) 474-6000

Hospital & facility affiliations

  • St Charles Hospital Hospital, Port Jefferson, NY, CCN 330246

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Physician Assistant

Practice roles

OrganizationSpecialtyStatusNew patients
St. Catherine of Siena Medical Center CurrentSince Aug 8, 2016 Accepting new patients
CHS Physician Partners, P.C CurrentSince Feb 6, 2023 Accepting new patients
Southwest Suffolk Medical PC CurrentSince Sep 19, 2025 Accepting new patients

Locations

500 Commack Rd
Ste E
Commack, NY 11725
Phone (631) 435-0110

1743 N Ocean Ave
Medford, NY 11763
Phone (516) 758-3100

245 Old Country Rd
Melville, NY 11747
Phone (631) 465-6141

200 Belle Terre Rd
Prt Jefferson, NY 11777
Phone (631) 474-6000

75 N Country Rd
Prt Jefferson, NY 11777
Phone (631) 463-1320

1000 N Village Ave
Rockville Ctr, NY 11570
Phone (516) 705-1012

100 Port Washington Blvd
Ste G3
Roslyn, NY 11576
Phone (516) 627-4800

48 Route 25A
Smithtown, NY 11787
Phone (631) 862-3540

50 Route 25A
Smithtown, NY 11787
Phone (631) 465-6225

1000 Montauk Hwy
West Islip, NY 11795
Phone (516) 705-2689

Networks

  • Healthfirst Medicare Network H1722
  • Healthfirst Medicare Network H9678
  • Healthfirst Medicare Network H5989
  • Healthfirst Medicare Network H3359

Interoperability endpoints

  • Direct secure messaging: mgrosskopf54942@direct-chsli.net

Organizations & group practices 6

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.

Hospital & facility affiliations 1

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

NPI Registry JSON

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

{
    "created_epoch": "1248652800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1553558400000",
    "number": "1689804593",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "35 PERRI CIR",
            "city": "MIDDLE ISLAND",
            "state": "NY",
            "postal_code": "119532660"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3001 EXPRESSWAY DR N STE 104",
            "city": "ISLANDIA",
            "state": "NY",
            "postal_code": "117495301",
            "telephone_number": "631-435-0110"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1743 N Ocean Ave",
            "address_purpose": "LOCATION",
            "city": "Medford",
            "state": "NY",
            "postal_code": "117632649",
            "country_code": "US",
            "telephone_number": "631-758-3100",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "MCCARRON",
        "first_name": "MARISSA",
        "credential": "PA",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2009-07-27",
        "last_updated": "2019-03-26",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Islandia, NY

Sources for this page

Verify at the official NPI Registry.