William Kotkin
NPI 1770021800 · Pediatric Dentistry · Rehoboth Beach, DE
Enrolled with Medicare as Order and Referring Only - Dentist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Kotkin is a Pediatric Dentistry provider in Rehoboth Beach, DE (NPI 1770021800).
Provider details
- NPI number
- 1770021800
- Entity type
- Individual
- Primary specialty
- Pediatric DentistryDental Providers
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Dental Providers
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
9 yrs in NPPES registry
- Profile completeness38% of score
83% of core fields populated
- Practice footprint23% of score
3 documented practice locations
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
Mailing address
Additional practice locations (2)
- 2455 Route 516Old Bridge, NJ 08857-1892Phone: (732) 679-2323
- 27005 76th AveDepartment of Dental Medicine Northwell HealthNew Hyde Park, NY 11040-1402Phone: (718) 470-4120
Registry dates
- Enumerated
- 2017-02-09
- Last updated
- 2022-04-27
- Certified
- 2022-04-27
Frequently asked questions
- What is William Kotkin's NPI number?
- William Kotkin's National Provider Identifier (NPI) is 1770021800, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Kotkin's specialty?
- William Kotkin is listed in the NPPES registry with a primary specialty of Pediatric Dentistry (Dental Providers).
- Where is William Kotkin located?
- William Kotkin's practice location on file with NPPES is 18947 John J Williams Hwy Unit 309, Rehoboth Beach, DE 19971-4477.
- What is William Kotkin's phone number?
- The practice phone number listed in the NPPES registry for William Kotkin is (302) 644-4460.
- Does William Kotkin accept Medicare?
- William Kotkin is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Kotkin's NPI active?
- Yes — William Kotkin's NPI (1770021800) is active in the NPPES registry as of the last update on 2022-04-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.