NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Nicholas P Mastros MD Inc

Plastic Surgery within the Head & Neck (Otolaryngology) Physician in Steubenville, OH · enumerated 2007 · authorized official Angela Mastros, Office Manager.

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

National Provider Identifier

1619028222

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Nicholas P Mastros MD Inc
Practice address 2315 Sunset Blvd, Steubenville, OH, 43952
Phone (740) 266-7006
Fax (740) 266-7049
Enumeration date Jan 12, 2007
Last updated in NPPES Sep 9, 2011

Taxonomy & classification

207YX0007X Plastic Surgery within the Head & Neck (Otolaryngology) Physician Allopathic & Osteopathic Physicians · License 68080 (OH) Primary

Authorized official

Name Angela Mastros
Title Office Manager
Phone (740) 266-7006

Other identifiers

Identifier Type State Issuer
0186310 Medicaid OH -

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 Nicholas P Mastros MD Inc?
The NPI for Nicholas P Mastros MD Inc is 1619028222, a Type 2 (organization) record in the CMS NPPES registry.
Who is the authorized official for Nicholas P Mastros MD Inc?
NPPES lists Angela Mastros (Office Manager) as the authorized official for this organization.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-09-09.