NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Donald Mayer, D.D.S.

Orthodontics and Dentofacial Orthopedics Dentistry in Hollidaysburg, PA · enumerated 2010 · practices at 42 North Dental Care LLC.

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

National Provider Identifier

1154651511

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dr. Donald Mayer
Credential D.D.S.
Sex Male
Practice address 712 S Logan Blvd, Hollidaysburg, PA, 16648
Phone (814) 631-5151
Enumeration date Jan 7, 2010
Last updated in NPPES May 6, 2026

Taxonomy & licenses

1223X0400X Orthodontics and Dentofacial Orthopedics Dentistry Dental Providers · License DS042018 (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 1154651511 active?
Yes, as of the latest NPPES snapshot, NPI 1154651511 is active (record last updated 2026-05-06).
How do I verify Donald Mayer's NPI record?
Cross-check NPI 1154651511 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 →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-05-06.