What is William Sullivan's NPI number?

William Sullivan's National Provider Identifier (NPI) is 1588614630, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is William Sullivan's specialty?

William Sullivan is listed in the NPPES registry with a primary specialty of Dentist (Dental Providers).

Where is William Sullivan located?

William Sullivan's practice location on file with NPPES is 6810 Post Rd, North Kingstown, RI 02852.

What is William Sullivan's phone number?

The practice phone number listed in the NPPES registry for William Sullivan is (401) 884-1525.

Is William Sullivan's NPI active?

Yes — William Sullivan's NPI (1588614630) is active in the NPPES registry as of the last update on 2026-04-26.

IndividualActive

William Sullivan, DDS

NPI 1588614630 · Dentist · North Kingstown, RI

William Sullivan, DDS is a Dentist provider in North Kingstown, RI (NPI 1588614630).

Provider details

NPI number: 1588614630
Entity type: Individual
Primary specialty: DentistDental Providers
Credential: DDS
Sex: Male
License: 1685 (RI)

Specialties & taxonomies

DentistPrimary122300000XLicense 1685 (RI)
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

6810 Post Rd

North Kingstown, RI 02852

Phone: (401) 884-1525

Street-level locationGet directions

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Mailing address