Individual provider Active NPI

Marissa Rice, MD

  • Pediatrics Physician
  • Boston, MA
National Provider Identifier
1235888660
Registry record updated May 30, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Pediatrics PhysicianTaxonomy code 208000000X
License
1022665 Issued in MA
Practice address
300 Longwood Ave
Boston, MA 02115-5724
Phone
(617) 355-6000
NPI assigned
Mar 22, 2022
Last updated
May 30, 2025By the provider in NPPES
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on May 30, 2025

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Pediatrics Physician 208000000X 1022665 MA Primary

Addresses

Primary practice location

300 Longwood Ave
Boston, MA 02115-5724

Mailing address

300 Longwood Ave
Boston, MA 02115-5724
Phone (617) 355-6000

Medicare participation

Medicare enrollment files
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: Yes
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20250605001587 MA Practitioner - Pediatric Medicine 3870002223 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Pediatric Medicine
Education
State University of Ny Upstate Medical University, 2022
Medicare assignment
May accept Medicare assignment

Practice addresses (Care Compare)

147 Milk St
Boston, MA 02109-4806

147 Milk St
Boston, MA 02109-4862

300 Longwood Ave
Boston, MA 02115-5724

4223 Basket Oak Cir
Vero Beach, FL 32967-6107

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
1022665MAMDPediatrics Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Atrius Health, Inc. CurrentSince Jul 1, 2025 Accepting new patients
Atrius Health, Inc. CurrentSince Jul 1, 2025 Accepting new patients
Children's Hospital Pediatric Associates, Inc Pediatrics CurrentSince Jul 1, 2025 Accepting new patients
Atrius Health, Inc. Pediatrics Current Accepting new patients

Locations

133 Brookline Ave
Boston, MA 02215
Phone (617) 421-1000

147 Milk St
Boston, MA 02109
Phone (617) 421-2508

300 Longwood Ave
Boston, MA 02115
Phone (617) 355-4956

300 Longwood Ave
Bldg 129
Boston, MA 02115
Phone (617) 355-8241

Interoperability endpoints

  • Direct secure messaging: mrice28622@direct.bostonchildrens.org
  • Direct secure messaging: mrice582522@direct.ochin.org
  • Direct secure messaging: mricemd409322@direct.atrius.masshiway.net

Organizations & group practices 4

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.

NPI Registry JSON

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

{
    "created_epoch": "1647907200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1748563200000",
    "number": "1235888660",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "300 LONGWOOD AVE",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "021155724",
            "telephone_number": "617-355-6000"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "300 LONGWOOD AVE",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "021155724",
            "telephone_number": "617-355-6000"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "RICE",
        "first_name": "MARISSA",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2022-03-22",
        "last_updated": "2025-05-30",
        "certification_date": "2025-05-30",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208000000X",
            "taxonomy_group": "",
            "desc": "Pediatrics",
            "state": "MA",
            "license": "1022665",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Boston, MA

Sources for this page

Verify at the official NPI Registry.