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WILLIAM KOTKIN
NPI 1770021800
Dentist - Pediatric Dentistry in Rehoboth Beach, DE

Active since February 09, 2017PECOS Enrolled
18947 JOHN J WILLIAMS HWY UNIT 309, REHOBOTH BEACH, DE 19971(302) 644-4460(302) 644-4470 Get Directions Write a Review

NPPES record last updated: April 27, 2022. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Apr 27, 2022, Oct 24, 2021, Feb 9, 2017 (3 updates tracked since 2017).

About William Kotkin NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

WILLIAM KOTKIN (NPI 1770021800) is an individual pediatric dentistry provider in Rehoboth Beach, Delaware, licensed in New York (060006) and active in the NPI registry since February 2017. He is enrolled in Medicare PECOS and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1770021800
Entity TypeIndividualMale
Primary Taxonomy1223P0221X
Provider Legal NameWILLIAM KOTKIN
Location Address18947 JOHN J WILLIAMS HWY UNIT 309Rehoboth Beach, DE 19971-4477
Mailing Address26910 Grand Central Pkwy Apt 28sFloral Park, NY 11005-1028 · (516) 567-6332
Phone(302) 644-4460
Fax(302) 644-4470
Sole ProprietorNo
Enumeration DateFebruary 9, 2017
Last NPPES UpdateApril 27, 20223 updates tracked since enumeration
NPPES CertifiedApril 27, 2022
✔ NPI 1770021800 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyDentist · Pediatric DentistryDental Providers
Taxonomy Code1223P0221X
License✔ Licensed in NY · 060006
Definition
An age-defined specialty that provides both primary and comprehensive preventive and therapeutic oral health care for infants and children through adolescence, including those with special health care needs.
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
18947 JOHN J WILLIAMS HWY UNIT 309, Rehoboth Beach, DE 19971
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Secondary Practice Locations 2

Location 12455 Route 516Old Bridge, NJ 08857-1892 · Phone (732) 679-2323
Location 227005 76th Ave, Department of Dental Medicine Northwell HealthNew Hyde Park, NY 11040-1402 · Phone (718) 470-4120

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, BEST Life, Blue Cross and Blue Shield of Montana and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

William Kotkin is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency– Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 19971 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$88.37 typical visit price
range $57.12 – $173.08
Typical copayment $22.09 (range $14.28 – $43.27)
Most-billed visit code 99203
Established Patient
$71.19 typical visit price
range $18.36 – $141.05
Typical copayment $17.79 (range $4.59 – $35.26)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 2

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

CHRISTY M YARMOSKY DDS
Dentist (Pediatric Dentistry)
18947 JOHN J WILLIAMS HWY UNIT 309
REHOBOTH BEACH, DE 19971
Sussex County (302) 644-4460
DR. JEREMY MACEO IRVING DMD
Dentist (Pediatric Dentistry)
18947 JOHN J WILLIAMS HWY UNIT 309
REHOBOTH BEACH, DE 19971
Sussex County (302) 644-4460

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is William Kotkin's NPI number?

The NPI number for William Kotkin is 1770021800. It was assigned to this individual provider in the NPPES registry on February 9, 2017.

Where is William Kotkin located?

William Kotkin practices at 18947 John J Williams Hwy Unit 309, Rehoboth Beach, DE 19971. The listed phone number is (302) 644-4460.

What is William Kotkin's specialty?

The primary specialty registered for this NPI is Dentist, specializing in Pediatric Dentistry, with taxonomy code 1223P0221X.

Is William Kotkin enrolled in Medicare?

Yes. William Kotkin is registered in the Medicare PECOS enrollment system.

What insurance does William Kotkin accept?

Health plans from Anthem Blue Cross and Blue Shield, BEST Life, Blue Cross and Blue Shield of Montana, Blue Cross and Blue Shield of Oklahoma and Blue Cross and Blue Shield of Texas and 5 other insurers list William Kotkin as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for William Kotkin was last updated on April 27, 2022. NPI Profile syncs with the weekly NPPES data releases published by CMS.