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

Dr Willard B. Cox and Dr Mark D. Greenstein, PA

Organization General Practice Dentistry · NPI 1689718025

Dr Willard B. Cox and Dr Mark D. Greenstein, PA is a General Practice Dentistry in Clinton, Maryland. Licensed in New York. Registered with an NPI since 2007.

Licensed in
NY
In the registry since
2007
What do these letters mean?
PA — Professional association
A form of business registration, not a clinical qualification.

See every abbreviation used in this directory →

Practice location Address checks out

7905 Malcolm Rd Ste 104
Clinton, MD 20735-1709
Phone: (301) 868-7228
Fax: (301) 868-1363
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 MD9194 (NY)

Record details

NPI number1689718025
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Mark Greenstein — Partner · (301) 868-7228
NPI enumeratedFebruary 19, 2007
Last updated in NPPESNovember 8, 2007
Mailing address7905 Malcolm Rd Ste 104, Clinton, MD 20735-1709

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