Dr. Mark Waldman, DMD

Dr. Mark Waldman is a General Practice Dentistry provider (Dentist) practicing in Darien, CT, registered in the NPPES registry with NPI 1346254422 since 2006. The credential DMD stands for Doctor of Medicine in Dentistry. Practices at Alan B Rosenthal,Dmd,PC (listed at the same practice address in NPPES).

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NPI	1346254422
Entity type	Individual (Type 1)
Name	Dr. Mark Waldman
Credential	DMD
Sex	Male
Practice address	110 POST RD, Darien, CT, 06820
Phone	2036552453
Fax	2036560353
Enumeration date	2006-07-27
Last updated in NPPES	2007-07-08

Taxonomy & licenses

Taxonomy code	Specialty	Primary	License	State
1223G0001X	General Practice Dentistry	Primary	08700	CT

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

Copy-ready billing details

Provider: Mark Waldman, DMD
NPI: 1346254422
Taxonomy: 1223G0001X (General Practice Dentistry)
Address: 110 POST RD, Darien, CT, 06820

Other providers at this practice address

NPI	Name	Type	Specialty	Location
1306860937	Alan B Rosenthal,Dmd,PC	Organization	Dentist	Darien, CT
1275547341	Michael Nishi	Individual	Prosthodontics	Darien, CT
1588747216	David Tesser	Individual	Dentist	Darien, CT

Verify this record

Cross-check NPI 1346254422 against the authoritative CMS record: view Dr. Mark Waldman on the official NPPES registry .

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 or validate an NPI number.

Frequently asked questions

What specialty is Mark Waldman?

Mark Waldman is registered in NPPES with the primary taxonomy of General Practice Dentistry. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2007-07-08.