Individual provider Active NPI

Mallory Fossa, PNP-PC

  • Pediatric Anesthesiology Physician
  • Hartford, CT
National Provider Identifier
1780059030
Registry record updated Sep 12, 2022
On this page

Key facts

NPPES NPI Registry
Primary specialty
Pediatric Anesthesiology PhysicianTaxonomy code 207LP3000X
License
95003548 Issued in CA
Practice address
282 Washington St
Hartford, CT 06106-3322
Phone
(860) 837-5207
NPI assigned
Dec 10, 2015
Sex
Female
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Sep 12, 2022

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

Specialties & licenses 3

Specialty (taxonomy)CodeLicenseStatePrimary
Pediatric Nurse Practitioner 363LP0200X 95003548 CA
Pediatric Nurse Practitioner 363LP0200X 12.008276 CT
Pediatric Anesthesiology Physician 207LP3000X 95003548 CA Primary

Addresses

Primary practice location

282 Washington St
Hartford, CT 06106-3322

Mailing address

3701 Wilshire Blvd
Suite 600
Los Angeles, CA 90010-2814
Phone (323) 361-3550

Other practice location 1

4650 W Sunset Blvd
MS #12; 4th Floor McAllister Building
Los Angeles, CA 90027-6062
Phone (323) 361-7686

Electronic endpoints 1

TypeEndpointUseAffiliation
Direct Messaging Address mfossa47138@connecticutchildrens.direct-ci.com

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CT, MA2 enrollments
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 2

Enrollment IDStateProvider typePAC IDDetails
I20190822002533 CT Practitioner - Nurse Practitioner 1557632106 Reassigns benefits to 1 organization
I20230110001798 MA Practitioner - Nurse Practitioner 1557632106

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled

State licenses

LicenseStateTypeSpecialty
8276CTMDChild & Adolescent Psychiatry Physician
95003548CAMDPediatric Nurse Practitioner
12.008276CTMDPediatric Nurse Practitioner

Practice roles

OrganizationSpecialtyStatusNew patients
Yale University CurrentSince Oct 16, 2025 Accepting new patients
Yale University Current Accepting new patients
Yale University CurrentSince Oct 16, 2025 Accepting new patients

Locations

282 Washington St
Hartford, CT 06106
Phone (860) 545-8950

800 Howard Ave
New Haven, CT 06519
Phone (203) 785-2140

35 Park St
New Haven, CT 06519
Phone (203) 200-2100

Interoperability endpoints

  • Direct secure messaging: mfossa47138@connecticutchildrens.direct-ci.com

Organizations & group practices 3

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.

NPI Registry JSON

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

{
    "created_epoch": "1449705600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1662940800000",
    "number": "1780059030",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "3701 WILSHIRE BLVD",
            "address_2": "SUITE 600",
            "city": "LOS ANGELES",
            "state": "CA",
            "postal_code": "900102814",
            "telephone_number": "323-361-3550",
            "fax_number": "323-361-8502"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "282 WASHINGTON ST",
            "city": "HARTFORD",
            "state": "CT",
            "postal_code": "061063322",
            "telephone_number": "860-837-5207"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "4650 W Sunset Blvd",
            "address_2": "MS #12; 4th Floor McAllister Building",
            "address_purpose": "LOCATION",
            "city": "Los Angeles",
            "state": "CA",
            "postal_code": "900276062",
            "country_code": "US",
            "telephone_number": "323-361-7686",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "FOSSA",
        "first_name": "MALLORY",
        "credential": "PNP-PC",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2015-12-10",
        "last_updated": "2022-09-12",
        "certification_date": "2022-09-12",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LP0200X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Pediatrics",
            "state": "CA",
            "license": "95003548",
            "primary": false
        },
        {
            "code": "363LP0200X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Pediatrics",
            "state": "CT",
            "license": "12.008276",
            "primary": false
        },
        {
            "code": "207LP3000X",
            "taxonomy_group": "",
            "desc": "Anesthesiology, Pediatric Anesthesiology",
            "state": "CA",
            "license": "95003548",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "mfossa47138@connecticutchildrens.direct-ci.com",
            "affiliation": "N",
            "address_1": "282 Washington St",
            "city": "Hartford",
            "state": "CT",
            "country_code": "US",
            "postal_code": "061063322",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Hartford, CT

Sources for this page

Verify at the official NPI Registry.