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JOSEPH NIHAL GUNASEKERA II DDS
NPI 1295226835
Dentist - General Practice in Watertown, WI

Active since May 18, 2018PECOS Enrolled
101 OAKRIDGE CT STE C, WATERTOWN, WI 53094(920) 261-5400 Get Directions Write a Review

NPPES record last updated: May 18, 2018. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Joseph Nihal Gunasekera Ii Dds NPPES

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

JOSEPH NIHAL GUNASEKERA II DDS (NPI 1295226835) is an individual general practice provider in Watertown, Wisconsin, licensed in Wisconsin (1001804) and active in the NPI registry since May 2018. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1295226835
Entity TypeIndividualMale
Primary Taxonomy1223G0001X
Provider Legal NameJOSEPH NIHAL GUNASEKERA IICredential: DDS
Location Address101 OAKRIDGE CT STE CWatertown, WI 53094-4150
Mailing Address101 Oakridge Ct Ste CWatertown, WI 53094-4150
Phone(920) 261-5400
Sole ProprietorNo
Enumeration DateMay 18, 2018
✔ NPI 1295226835 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDentist · General PracticeDental Providers
Taxonomy Code1223G0001X
License✔ Licensed in WI · 1001804
Definition
A general dentist is the primary dental care provider for patients of all ages. The general dentist is responsible for the diagnosis, treatment, management and overall coordination of services related to patients' oral health needs.
101 OAKRIDGE CT STE C, Watertown, WI 53094
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Buckeye Health Plan, Ambetter from Meridian, Ambetter Health and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Joseph Nihal Gunasekera Ii Dds 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.

Medicare Billing Reassignment

Medicare enrollment records show Joseph Gunasekera reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Health Partners Of Western Ohio
243 mi
Federally Qualified Health Center (FQHC)
228 S MAIN ST
Bryan, OH 43506
  • Reassigned Medicare billing, Ohio enrollment
  • 129 clinicians in this Medicare group
NPI 1790020733 (419) 785-3827

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 53094 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
$82.92 typical visit price
range $53.90 – $163.24
Typical copayment $20.73 (range $13.47 – $40.81)
Most-billed visit code 99203
Established Patient
$67.37 typical visit price
range $17.40 – $133.76
Typical copayment $16.84 (range $4.35 – $33.44)
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.

AILEEN JONG DMD
Dentist
101 OAKRIDGE CT STE C
WATERTOWN, WI 53094
Jefferson County (920) 261-5400
DR. MICHAEL J WERTZ D.D.S.
Dentist (General Practice)
101 OAKRIDGE CT STE C
WATERTOWN, WI 53094
Jefferson County (920) 261-5400

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 Joseph Gunasekera's NPI number?

The NPI number for Joseph Gunasekera is 1295226835. It was assigned to this individual provider in the NPPES registry on May 18, 2018.

Where is Joseph Gunasekera located?

Joseph Gunasekera practices at 101 Oakridge Ct Ste C, Watertown, WI 53094. The listed phone number is (920) 261-5400.

What is Joseph Gunasekera's specialty?

The primary specialty registered for this NPI is Dentist, specializing in General Practice, with taxonomy code 1223G0001X.

Is Joseph Gunasekera enrolled in Medicare?

Yes. Joseph Gunasekera is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Joseph Gunasekera's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Joseph Gunasekera reassigns Medicare benefits to Health Partners Of Western Ohio (Bryan, OH). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Joseph Gunasekera's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Joseph Gunasekera accept?

Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian, Anthem Blue Cross and Blue Shield and BEST Life and 17 other insurers list Joseph Gunasekera 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 Joseph Gunasekera was last updated on May 18, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.