Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. James Richard Mastriana, D.O.

Emergency Medicine Physician in Bryn Mawr, PA · enumerated 2015.

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

National Provider Identifier

1396131066

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Registry record

Entity type Individual (Type 1)

Name Dr. James Richard Mastriana

Credential D.O.

Sex Male

Practice address Bryn Mawr, PA, 19010

Phone (484) 337-3000

Enumeration date Apr 9, 2015

Last updated in NPPES Nov 10, 2023

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License 20A19532 (CA) Secondary

207PE0004X Emergency Medical Services (Emergency Medicine) Physician Allopathic & Osteopathic Physicians · License 34.013347 (OH) Secondary

390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Secondary

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License 34.013347 (OH) Secondary

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License OS023081 (PA) Primary

DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO 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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for James Mastriana?

The National Provider Identifier (NPI) for James Mastriana is 1396131066, a Type 1 (individual) record in the CMS NPPES registry.

Where does James Mastriana practice?

The practice location on file with NPPES is in Bryn Mawr, PA. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-11-10.