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

Dr. Robert A Peifer Jr., O.D.

Corneal and Contact Management Optometrist in Phoenixville, PA · enumerated 2006.

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

National Provider Identifier

1891800520

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Registry record

Entity type Individual (Type 1)

Name Dr. Robert A Peifer Jr.

Credential O.D.

Sex Male

Practice address Phoenixville, PA, 19460

Phone (610) 933-6676

Fax (610) 933-6679

Enumeration date Aug 21, 2006

Last updated in NPPES Dec 3, 2025

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

Taxonomy & licenses

152WC0802X Corneal and Contact Management Optometrist Eye and Vision Services Providers · License OE007572T (PA) Primary

OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses. About the OD credential

Other identifiers

Identifier	Type	State	Issuer
154241	Other	PA	HIGHMARK BLUE SHIELD ID
0670384000	Other	PA	BLUE SHIELD HMO ID
0530795	Other	PA	AETNA HMO/PPO

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

How do I verify Robert Peifer's NPI record?

Cross-check NPI 1891800520 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1891800520 active?

Yes, as of the latest NPPES snapshot, NPI 1891800520 is active (record last updated 2025-12-03).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-12-03.