Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Cynthia Brubaker, PAC

Physician Assistant in Lancaster, PA · enumerated 2005 · practices at Stephen Diamantoni & Associates Family Practice PC.

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

National Provider Identifier

1699775098

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Registry record

Entity type Individual (Type 1)

Name Cynthia Brubaker

Credential PAC

Sex Female

Practice address 734 N Franklin St, Lancaster, PA, 17602

Phone (717) 295-2323

Fax (717) 295-7294

Enumeration date Jul 28, 2005

Last updated in NPPES Jun 7, 2011

Taxonomy & licenses

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License MA00083L (PA) Primary

Other identifiers

Identifier	Type	State	Issuer
158841	Other	PA	MDICARE GROUP 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.

Read the full guide → Validate an NPI →

Frequently asked questions

What specialty is Cynthia Brubaker?

Cynthia Brubaker is registered in NPPES with the primary taxonomy of Physician Assistant. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-06-07.