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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. GREGORY ALAN WASKEWICZ D.D.S.
NPI 1255301578
Dentist - Prosthodontics in Bethesda, MD

Active since January 26, 2006
NATIONAL NAVAL MEDICAL CENTER 8901 WISCONSIN AVE, BETHESDA, MD 20889(301) 295-4340 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Dr. Gregory Alan Waskewicz D.d.s. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. GREGORY ALAN WASKEWICZ D.D.S. (NPI 1255301578) is an individual prosthodontics provider in Bethesda, Maryland, licensed in California (34438) and active in the NPI registry since January 2006.

NPPES Registry Identity

NPI1255301578
Entity TypeIndividualMale
Primary Taxonomy1223P0700X
Provider Legal NameDR. GREGORY ALAN WASKEWICZCredential: D.D.S.
Location AddressNATIONAL NAVAL MEDICAL CENTER 8901 WISCONSIN AVEBethesda, MD 20889-0001
Mailing Address19204 Honeystone PlBrookeville, MD 20833-3211 · (301) 570-4364
Phone(301) 295-4340
Sole ProprietorNo
Enumeration DateJanuary 26, 2006
Last NPPES UpdateJuly 13, 2026
✔ NPI 1255301578 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDentist · ProsthodonticsDental Providers
Taxonomy Code1223P0700X
License✔ Licensed in CA · 34438
Definition
That branch of dentistry pertaining to the restoration and maintenance of oral functions, comfort, appearance and health of the patient by the restoration of natural teeth and/or the replacement of missing teeth and contiguous oral and maxillofacial tissues with artificial substitutes.
NATIONAL NAVAL MEDICAL CENTER 8901 WISCONSIN AVE, Bethesda, MD 20889
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Other Providers at the Same Location NPPES 2

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. JOSEPH EDWARD ZEMAN JR. MD
Internal Medicine (Pulmonary Disease)
NATIONAL NAVAL MEDICAL CENTER 8901 WISCONSIN AVE, GRADUATE MEDICAL EDUCATION BLDG 10 RM 1006
BETHESDA, MD 20889
Montgomery County (301) 319-8278
DR. JASON A. SLINGERLAND M.D.
Student in an Organized Health Care Education/Training Program
NATIONAL NAVAL MEDICAL CENTER 8901 WISCONSIN AVE, C/O GME OFFICE, BLD 10, ROOM 1006
BETHESDA, MD 20889
Montgomery County (301) 319-8278

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Gregory Waskewicz's NPI number?

The NPI number for Gregory Waskewicz is 1255301578. It was assigned to this individual provider in the NPPES registry on January 26, 2006.

Where is Gregory Waskewicz located?

Gregory Waskewicz practices at National Naval Medical Center 8901 Wisconsin Ave, Bethesda, MD 20889. The listed phone number is (301) 295-4340.

What is Gregory Waskewicz's specialty?

The primary specialty registered for this NPI is Dentist, specializing in Prosthodontics, with taxonomy code 1223P0700X.

When was this NPI record last updated?

The NPPES record for Gregory Waskewicz was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 29 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.