Marissa Lynn Zingg, APRN

Primary specialty

Family Nurse PractitionerTaxonomy code 363LF0000X

License

RN2300751 Issued in MA

Practice address

1101 Beacon Street
Suite 1E
Brookline, MA 02446-5587

Phone

(617) 731-2390

Fax

(617) 731-1283

NPI assigned

Mar 27, 2023

Sex

Female

Sole proprietor

No

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

Specialties & licenses 1

Addresses

Other names 1

• Marissa Lynn Ashcraft Former name

Medicare fee-for-service enrollment

Enrolled in MA

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

Specialty

Nurse Practitioner

Education

Other, 2022

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Reliant Medical Group IncGroup PAC ID 5597755322, 638 clinicians

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Nurse Practitioner

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: marissa.zingg.npi1932802097.reliant@direct.optumcare.masshiway.net

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.

• Reliant Medical Group, Inc

  • Family Medicine Physician
  • Worcester, MA
  • NPI 1720017528
  Medicare reassignment Care Compare group NPD
• Integrated Dermatology of Brookline, LLC

  • Dermatology Physician
  • Brookline, MA
  • NPI 1104389154
  Medicare reassignment NPD
• Alan Rockoff, M.D, LLC

  • Specialist
  • Brookline, MA
  • NPI 1003959917
  NPD (past)

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

{
    "created_epoch": "1679875200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783468800000",
    "number": "1932802097",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4700 EXCHANGE COURT",
            "address_2": "SUITE 110",
            "city": "BOCA RATON",
            "state": "FL",
            "postal_code": "334314450",
            "telephone_number": "617-731-2390",
            "fax_number": "617-731-1283"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1101 BEACON STREET",
            "address_2": "SUITE 1E",
            "city": "BROOKLINE",
            "state": "MA",
            "postal_code": "024465587",
            "telephone_number": "617-731-2390",
            "fax_number": "617-731-1283"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "366 Shrewsbury St",
            "address_purpose": "LOCATION",
            "city": "Worcester",
            "state": "MA",
            "postal_code": "016044647",
            "country_code": "US",
            "telephone_number": "508-595-2700",
            "fax_number": "774-221-5136",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "1101 Beacon Street",
            "address_2": "Suite 1W",
            "address_purpose": "LOCATION",
            "city": "Brookline",
            "state": "MA",
            "postal_code": "024465587",
            "country_code": "US",
            "telephone_number": "617-731-2390",
            "fax_number": "617-731-1283",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "28 Andover Street",
            "address_2": "Suite 1R",
            "address_purpose": "LOCATION",
            "city": "Andover",
            "state": "MA",
            "postal_code": "018104888",
            "country_code": "US",
            "telephone_number": "978-475-9230",
            "fax_number": "978-475-9231",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "ZINGG",
        "first_name": "MARISSA",
        "middle_name": "LYNN",
        "credential": "APRN",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2023-03-27",
        "last_updated": "2026-07-08",
        "certification_date": "2026-07-08",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LF0000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Family",
            "state": "MA",
            "license": "RN2300751",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "MARISSA",
            "last_name": "ASHCRAFT",
            "middle_name": "LYNN",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

• Xixi Zhou, DMD
• Min Zhu, LIC. AC.
• Jeffrey L Zilberfarb, M.D.
• Sharon L. Zimmerman, PH.D.
• Mira Zinger, DMD
• Elizabeth Zinn, MA, LMHC, MT-BC
• Tracy Rebecca Zinner, M.D.
• Ellen L Ziskind, LICSW
• Vered Ziv-Baranov, MA
• Marla Sharon Zucker, PH.D.

• Family Nurse Practitioner in Brookline, MA
• Providers in Brookline, MA by specialty
• Family Nurse Practitioner in Massachusetts

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 8, 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.