IndividualActive
William Neilsen, DDS
NPI 1558342162 · General Practice Dentistry · Clifton Springs, NY
William Neilsen, DDS is a General Practice Dentistry provider in Clifton Springs, NY (NPI 1558342162).
Provider details
- NPI number
- 1558342162
- Entity type
- Individual
- Primary specialty
- General Practice DentistryDental Providers
- Credential
- DDS
- Sex
- Male
- License
- 036016 (NY)
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
67 Kendall St
120 Clifton Springs Professional Park
Clifton Springs, NY 14432-9701
Phone: (315) 462-5633
Fax: (315) 462-3196
Street-level locationGet directions
Mailing address
67 Kendall St
Clifton Springs, NY 14432
Registry dates
- Enumerated
- 2005-11-10
- Last updated
- 2007-07-09
Frequently asked questions
- What is William Neilsen's NPI number?
- William Neilsen's National Provider Identifier (NPI) is 1558342162, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Neilsen's specialty?
- William Neilsen is listed in the NPPES registry with a primary specialty of General Practice Dentistry (Dental Providers).
- Where is William Neilsen located?
- William Neilsen's practice location on file with NPPES is 67 Kendall St, Clifton Springs, NY 14432-9701.
- What is William Neilsen's phone number?
- The practice phone number listed in the NPPES registry for William Neilsen is (315) 462-5633.
- Is William Neilsen's NPI active?
- Yes — William Neilsen's NPI (1558342162) is active in the NPPES registry as of the last update on 2007-07-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.