Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Mr. Daniel M O Brien, DMD

Individual provider Dentist · NPI 1235240334

Mr. Daniel M O Brien, DMD is a Dentist in Middletown, New York. Licensed in New York. Registered with an NPI since 2006.

Licensed in
NY
In the registry since
2006
Specialties on file
2
What do these letters mean?
DMD — Doctor of Dental Medicine
A dentist. Identical training and licensing to a DDS.

See every abbreviation used in this directory →

Practice location Address checks out

831 Route 211 E
Middletown, NY 10941
Phone: (845) 692-5311
Fax: (845) 692-6778
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

General Practice Dentistry (primary) Taxonomy 1223G0001X · Licence 0344761 (NY)
Dentist Taxonomy 122300000X · Licence 0344761 (NY)

Record details

NPI number1235240334
Entity typeIndividual (Type 1)
GenderMale
Credentials DMD
Sole proprietorNo
NPI enumeratedAugust 31, 2006
Last updated in NPPESSeptember 11, 2025

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