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

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.

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Practice location Address checks out

831 Route 211 E
Middletown, NY 10941
Phone: (845) 692-5311
Fax: (845) 692-6778
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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
Mailing address831 Route 211 East, Middletown, NY 10941

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