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

Sidney S Markowitz DDS PC

Organization Dentist · NPI 1487615159

Sidney S Markowitz DDS PC is a Dentist in Washington, District of Columbia. Registered with an NPI since 2006.

In the registry since
2006
What do these letters mean?
PC — Professional corporation
A form of business registration, not a clinical qualification.

See every abbreviation used in this directory →

Practice location Address checks out

1145 19th St NW Ste 316
Washington, DC 20036
Phone: (202) 833-8240
Fax: (202) 331-7803
Show map & directions

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

Specialties & licences

Dentist (primary) Taxonomy 122300000X

Record details

NPI number1487615159
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Sidney Markowtiz — President · (202) 833-8240
NPI enumeratedMarch 31, 2006
Last updated in NPPESAugust 22, 2020
Mailing address1145 19th Street Nw, Suite 316, Washington, DC 20036

Other providers in Washington