Matthew Lacroix, MSN, FNP, CPHON

Primary specialty

Nurse PractitionerTaxonomy code 363L00000X

License

NP500341656 Issued in DC

Practice address

111 Michigan Ave NW
Washington, DC 20010-2916

Phone

(508) 717-9238

NPI assigned

Mar 13, 2025

Sex

Male

Sole proprietor

No

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

Specialties & licenses 3

Addresses

Medicare fee-for-service enrollment

Enrolled in DC

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, 2025

Medicare assignment

May accept Medicare assignment

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Master of Science - Nursing

State licenses

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.

• Children's Hospital

  • Children's Hospital
  • Washington, DC
  • NPI 1912939703
  Medicare reassignment

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

{
    "created_epoch": "1741824000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1779148800000",
    "number": "1235938994",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "111 MICHIGAN AVE NW",
            "city": "WASHINGTON",
            "state": "DC",
            "postal_code": "200102916"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "111 MICHIGAN AVE NW",
            "city": "WASHINGTON",
            "state": "DC",
            "postal_code": "200102916",
            "telephone_number": "508-717-9238"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "LACROIX",
        "first_name": "MATTHEW",
        "credential": "MSN, FNP, CPHON",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2025-03-13",
        "last_updated": "2026-05-19",
        "certification_date": "2026-05-19",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363L00000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner",
            "state": "DC",
            "license": "NP500341656",
            "primary": true
        },
        {
            "code": "163W00000X",
            "taxonomy_group": "",
            "desc": "Registered Nurse",
            "state": "MA",
            "license": "RN2368295",
            "primary": false
        },
        {
            "code": "163W00000X",
            "taxonomy_group": "",
            "desc": "Registered Nurse",
            "state": "DC",
            "license": "RN500341656",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Alexandra Lachmann, PA
• Ernest E Lack, MD
• Michael Stephen Lackney, CORPSMAN
• Susan Lacks, M.D.
• Kathryn Delphine Lacroix, OTD, OTR/L
• Gabrielle Davis Lacy, MD
• Latoya Lacy
• Fatima Ladan
• Olivia Haven Ladd-Luthringshauser, MD
• Adeyinka Ladejobi

• Nurse Practitioner in Washington, DC
• Providers in Washington, DC by specialty
• Nurse Practitioner in District of Columbia

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 19, 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.