Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Jeffrey B Leiss, DDS

Orthodontics and Dentofacial Orthopedics Dentistry in Exton, PA · enumerated 2006 · practices at Myorthos Pennsylvania Orthodontics PC.

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

National Provider Identifier

1639187529

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. Jeffrey B Leiss

Credential DDS

Sex Male

Practice address 132 John Robert Thomas Dr, Exton, PA, 19341

Phone (610) 363-2900

Fax (610) 363-7722

Enumeration date Aug 4, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

1223X0400X Orthodontics and Dentofacial Orthopedics Dentistry Dental Providers · License DS028064L (PA) Primary

DDS · Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees. About the DDS 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 1639187529 active?

Yes, as of the latest NPPES snapshot, NPI 1639187529 is active (record last updated 2007-07-08).

How do I verify Jeffrey Leiss's NPI record?

Cross-check NPI 1639187529 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 →

Myorthos Pennsylvania Orthodontics PC Orthodontics and Dentofacial Orthopedics Dentistry · Exton, PA NPI 1265119820

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