OrganizationActive
Sidney S Markowitz DDS PC
NPI 1487615159 · Dentist · Washington, DC
Sidney S Markowitz DDS PC is a Dentist organization in Washington, DC (NPI 1487615159).
Provider details
- NPI number
- 1487615159
- Entity type
- Organization
- Primary specialty
- DentistDental Providers
- Organization subpart
- No
- Authorized official
- Sidney Markowtiz, President(202) 833-8240
Specialties & taxonomies
Dental Providers
Profile Score
Detailed profile(91/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
1145 19th Street Nw
Suite 316
Washington, DC 20036
Phone: (202) 833-8240
Fax: (202) 331-7803
Street-level locationGet directions
Mailing address
1145 19th Street Nw
Washington, DC 20036
Registry dates
- Enumerated
- 2006-03-31
- Last updated
- 2020-08-22
Frequently asked questions
- What is Sidney S Markowitz DDS PC's NPI number?
- Sidney S Markowitz DDS PC's National Provider Identifier (NPI) is 1487615159, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Sidney S Markowitz DDS PC?
- Sidney S Markowitz DDS PC is classified in the NPPES registry as Dentist (Dental Providers).
- Where is Sidney S Markowitz DDS PC located?
- Sidney S Markowitz DDS PC's practice location on file with NPPES is 1145 19th Street Nw, Washington, DC 20036.
- What is Sidney S Markowitz DDS PC's phone number?
- The practice phone number listed in the NPPES registry for Sidney S Markowitz DDS PC is (202) 833-8240.
- Who is the authorized official for Sidney S Markowitz DDS PC?
- The authorized official listed on Sidney S Markowitz DDS PC's NPPES record is Sidney Markowtiz, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Sidney S Markowitz DDS PC's NPI active?
- Yes — Sidney S Markowitz DDS PC's NPI (1487615159) is active in the NPPES registry as of the last update on 2020-08-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.