IndividualActive
William Marcinczuk, D.D.S.
NPI 1255499620 · General Practice Dentistry · Staten Island, NY
William Marcinczuk, D.D.S. is a General Practice Dentistry provider in Staten Island, NY (NPI 1255499620).
Provider details
- NPI number
- 1255499620
- Entity type
- Individual
- Primary specialty
- General Practice DentistryDental Providers
- Credential
- D.D.S.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 039405 (NY)
Specialties & taxonomies
Dental Providers
Profile Score
Detailed profile(90/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 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
142 Annadale Rd
Staten Island, NY 10312-1569
Phone: (718) 948-1600
Fax: (718) 966-0534
Street-level locationGet directions
Mailing address
142 Annadale Rd
Staten Island, NY 10312-1569
Registry dates
- Enumerated
- 2006-12-05
- Last updated
- 2007-07-08
Frequently asked questions
- What is William Marcinczuk's NPI number?
- William Marcinczuk's National Provider Identifier (NPI) is 1255499620, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Marcinczuk's specialty?
- William Marcinczuk is listed in the NPPES registry with a primary specialty of General Practice Dentistry (Dental Providers).
- Where is William Marcinczuk located?
- William Marcinczuk's practice location on file with NPPES is 142 Annadale Rd, Staten Island, NY 10312-1569.
- What is William Marcinczuk's phone number?
- The practice phone number listed in the NPPES registry for William Marcinczuk is (718) 948-1600.
- Is William Marcinczuk's NPI active?
- Yes — William Marcinczuk's NPI (1255499620) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.