Individual provider Active NPI

Maria Leon

  • Women's Health Nurse Practitioner
  • New Haven, CT
National Provider Identifier
1699633867
Registry record updated Jan 14, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Women's Health Nurse PractitionerTaxonomy code 363LW0102X
License
191981 Issued in CT
Practice address
400 Columbus Ave
New Haven, CT 06519-1233
Phone
(203) 503-3000
NPI assigned
Jan 14, 2026
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jan 14, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Women's Health Nurse Practitioner 363LW0102X 191981 CT Primary

Addresses

Primary practice location

400 Columbus Ave
New Haven, CT 06519-1233

Mailing address

400 Columbus Ave
New Haven, CT 06519-1233
Phone (203) 503-3000

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CT
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
I20260219003357 CT Practitioner - Nurse Practitioner 7719468537 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Nurse Practitioner
Education
Other, 2025
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Cornell Scott Hill Health CorporationGroup PAC ID 3072418359, 261 clinicians

Practice addresses (Care Compare)

428 Columbus Ave
New Haven, CT 06519-1233
Phone (203) 503-3228

Hospital & facility affiliations

  • Yale-New Haven Hospital Hospital, New Haven, CT, CCN 070022

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled

State licenses

LicenseStateTypeSpecialty
191981CTMDWomen's Health Nurse Practitioner

Practice roles

OrganizationSpecialtyStatusNew patients
Cornell Scott Hill Health Corporation CurrentSince Feb 23, 2026 Accepting new patients

Locations

428 Columbus Ave
New Haven, CT 06519
Phone (203) 503-3228

400 Columbus Ave
New Haven, CT 06519
Phone (203) 503-3174

Organizations & group practices 1

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 2

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": "1768348800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1768348800000",
    "number": "1699633867",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "400 COLUMBUS AVE",
            "city": "NEW HAVEN",
            "state": "CT",
            "postal_code": "065191233",
            "telephone_number": "203-503-3000"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "400 COLUMBUS AVE",
            "city": "NEW HAVEN",
            "state": "CT",
            "postal_code": "065191233",
            "telephone_number": "203-503-3000"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "LEON",
        "first_name": "MARIA",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2026-01-14",
        "last_updated": "2026-01-14",
        "certification_date": "2026-01-14",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LW0102X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Women's Health",
            "state": "CT",
            "license": "191981",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in New Haven, CT

Sources for this page

Verify at the official NPI Registry.