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Marilyn R. Mcdonald MD

Ophthalmology Physician in Fountain Hill, PA · enumerated 2008 · authorized official Sherri Shelson, Secretary.

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

National Provider Identifier

1952589145

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Registry record

Entity type Organization (Type 2)
Legal business name Marilyn R. Mcdonald MD
Practice address 522 Delaware Ave, Fountain Hill, PA, 18015
Phone (610) 861-8977
Fax (610) 861-9339
Enumeration date Feb 10, 2008
Last updated in NPPES Mar 5, 2008

Taxonomy & classification

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License MD035461E (PA) Primary

Authorized official

Name Sherri Shelson
Title Secretary
Phone (610) 861-8977

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 Marilyn R. Mcdonald MD?
Marilyn R. Mcdonald MD 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.

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-03-05.