Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Peter John Knowles, D.M.D.

General Practice Dentistry in Avon, CT · enumerated 2006.

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

National Provider Identifier

1386675924

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Registry record

Entity type Individual (Type 1)

Name Dr. Peter John Knowles

Credential D.M.D.

Sex Male

Practice address 20 West Avonrd., Avon, CT, 06001

Phone (860) 673-0451

Fax (860) 673-6784

Enumeration date Jul 5, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

1223G0001X General Practice Dentistry Dental Providers · License 6403 (CT) Primary

DMD · Doctor of Medicine in Dentistry: A licensed dentist; DMD and DDS are equivalent dental degrees. About the DMD credential

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 Peter Knowles?

The National Provider Identifier (NPI) for Peter Knowles is 1386675924, a Type 1 (individual) record in the CMS NPPES registry.

Where does Peter Knowles practice?

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

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.