NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Peter Mark Chlebek, BS RPH

Pharmacist in Westport, MA · enumerated 2009.

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

National Provider Identifier

1770717662

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Registry record

Entity type Individual (Type 1)
Name Mr. Peter Mark Chlebek
Credential BS RPH
Sex Male
Practice address 784 Main Rd, Westport, MA, 02790
Phone (508) 636-5957
Enumeration date May 7, 2009
Last updated in NPPES May 7, 2009

Taxonomy & licenses

183500000X Pharmacist Pharmacy Service Providers · License 17901 (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

What specialty is Peter Chlebek?
Peter Chlebek is registered in NPPES with the primary taxonomy of Pharmacist. 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 2009-05-07.