Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Keystone Retina, Pllc

Retina Specialist (Ophthalmology) Physician in Carlisle, PA · enumerated 2024 · authorized official Bradford Sgrignoli, Founder/President.

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

National Provider Identifier

1598571119

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Registry record

Entity type Organization (Type 2)

Legal business name Keystone Retina, Pllc

Practice address 850 Walnut Bottom Rd Ste 105, Carlisle, PA, 17013

Phone (717) 319-0546

Enumeration date Dec 9, 2024

Last updated in NPPES Dec 9, 2024

Taxonomy & classification

207WX0107X Retina Specialist (Ophthalmology) Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Bradford Sgrignoli

Title Founder/President

Phone (717) 319-0546

Other identifiers

Identifier	Type	State	Issuer
OS017847	Other	PA	PENNSYLVANIA MEDICAL LICENSE NUMBER

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

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2024-12-09. Verify at npiregistry.cms.hhs.gov.

Where is Keystone Retina, Pllc located?

The practice location on file with NPPES is in Carlisle, PA.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-12-09.