Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Charles Mastro, BCBA
Behavior Analyst in New City, NY · enumerated 2015.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1043606791
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Registry record
Entity type Individual (Type 1)
Name Charles Mastro
Credential BCBA
Sex Male
Practice address 260 N Little Tor Rd, New City, NY, 10956
Phone (845) 708-2000
Enumeration date Apr 9, 2015
Last updated in NPPES Apr 9, 2015
Taxonomy & licenses
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.
Frequently asked questions
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is Charles Mastro?
Charles Mastro is registered in NPPES with the primary taxonomy of Behavior Analyst. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-04-09.