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Persila V. Mertz, M.D., P.C.

Ophthalmology Physician in Ephrata, PA · enumerated 2007 · authorized official Persila Mertz, Owner.

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

National Provider Identifier

1093934655

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Registry record

Entity type Organization (Type 2)
Legal business name Persila V. Mertz, M.D., P.C.
Practice address 115 E Main St, Ephrata, PA, 17522
Phone (717) 733-3600
Fax (717) 721-3038
Enumeration date Apr 24, 2007
Last updated in NPPES Jul 3, 2014

Taxonomy & classification

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License MD043167E (PA) Primary

Authorized official

Name Persila Mertz
Title Owner
Phone (717) 733-3600

Other identifiers

Identifier Type State Issuer
110758 Other - MEDICARE LEGACY NUMBER
093980 Other - MEDICARE PROVIDER NUMBER
1942262019 Other - INDIVIDUAL NPI
110758 Other - MEDICARE PTAN

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 type of organization is Persila V. Mertz, M.D., P.C.?
Persila V. Mertz, M.D., P.C. is registered in NPPES as a Ophthalmology Physician (its primary provider taxonomy).
What is a Type 2 NPI?
A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-07-03.