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

Guy Coby, DMD

Orthodontics and Dentofacial Orthopedics Dentistry in Quakertown, PA · enumerated 2007.

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

National Provider Identifier

1578778817

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Guy Coby

Credential DMD

Sex Male

Practice address Quakertown, PA, 18951

Phone (215) 538-9410

Fax (215) 538-5610

Enumeration date May 11, 2007

Last updated in NPPES May 10, 2024

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

Taxonomy & licenses

1223X0400X Orthodontics and Dentofacial Orthopedics Dentistry Dental Providers · License DS025638L (PA) 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

Is NPI 1578778817 active?

Yes, as of the latest NPPES snapshot, NPI 1578778817 is active (record last updated 2024-05-10).

How do I verify Guy Coby's NPI record?

Cross-check NPI 1578778817 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

Browse all →

A Lyons Periodontics · Quakertown, PA NPI 1265575492

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-05-10.