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Dr. Lynann Marie Mastaj, DMD

Orthodontics and Dentofacial Orthopedics Dentistry in Bryn Mawr, PA · enumerated 2013 · practices at Lynann Mastaj D.M.D..

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

National Provider Identifier

1447590344

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Registry record

Entity type Individual (Type 1)
Name Dr. Lynann Marie Mastaj
Credential DMD
Sex Female
Practice address 976 E Railroad Ave, Suite 100, Bryn Mawr, PA, 19010
Phone (610) 525-2277
Fax (484) 380-2763
Enumeration date Mar 1, 2013
Last updated in NPPES Feb 28, 2018

Taxonomy & licenses

1223X0400X Orthodontics and Dentofacial Orthopedics Dentistry Dental Providers · License 26368 (PA) Primary
DMD · Doctor of Medicine in Dentistry: A licensed dentist; DMD and DDS are equivalent dental degrees. About the DMD credential

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.

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Frequently asked questions

What specialty is Lynann Mastaj?
Lynann Mastaj is registered in NPPES with the primary taxonomy of Orthodontics and Dentofacial Orthopedics Dentistry. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-02-28.