NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Andrea May Mastrocco, MHC-LP

Mental Health Counselor in Hempstead, NY · enumerated 2019.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1861039216

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Andrea May Mastrocco
Credential MHC-LP
Sex Female
Practice address 175 Fulton Ave, Hempstead, NY, 11550
Enumeration date Dec 4, 2019
Last updated in NPPES Dec 4, 2019

Taxonomy & licenses

101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers Primary

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Andrea Mastrocco?
The National Provider Identifier (NPI) for Andrea Mastrocco is 1861039216, a Type 1 (individual) record in the CMS NPPES registry.
Where does Andrea Mastrocco practice?
The practice location on file with NPPES is in Hempstead, NY. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-12-04.