Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Cali Peffer, PA-C

Physician Assistant in Charlton, MA · enumerated 2020.

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

National Provider Identifier

1023605953

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Registry record

Entity type Individual (Type 1)

Name Cali Peffer

Credential PA-C

Sex Female

Practice address 10 N Main St, Charlton, MA, 01507

Phone (508) 248-3015

Fax (508) 248-8106

Enumeration date Dec 27, 2020

Last updated in NPPES Dec 28, 2023

Taxonomy & licenses

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License PA7928 (MA) Primary

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

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.

What specialty is Cali Peffer?

Cali Peffer 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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-12-28.