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

Mr. William Summa

Pharmacist in Waterbury, CT · enumerated 2015.

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

National Provider Identifier

1417327438

Verified

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Registry record

Entity type Individual (Type 1)

Name Mr. William Summa

Sex Male

Practice address Waterbury, CT, 06708

Phone (203) 574-7825

Fax (203) 574-4972

Enumeration date Oct 2, 2015

Last updated in NPPES Oct 2, 2015

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

Taxonomy & licenses

183500000X Pharmacist Pharmacy Service Providers · License 3512 (CT) 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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for William Summa?

The National Provider Identifier (NPI) for William Summa is 1417327438, a Type 1 (individual) record in the CMS NPPES registry.

Where does William Summa practice?

The practice location on file with NPPES is in Waterbury, CT. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Bunker Hill Pharmacy Inc Pharmacy · Waterbury, CT NPI 1649251372 Kevin Czarzasty Pharmacist · Waterbury, CT NPI 1598942658 Christopher O'Brien Pharmacist · Waterbury, CT NPI 1740652361 Bunker Hill Pharmacy Long Term Care Pharmacy · Waterbury, CT NPI 1154986867

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-10-02.