Janatha Withanachchi, DDS
NPI 1134385016 · Endodontics · South Orange, NJ
Enrolled with Medicare as Order and Referring Only - Oral Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Janatha Withanachchi, DDS is a Endodontics provider in South Orange, NJ (NPI 1134385016).
Provider details
- NPI number
- 1134385016
- Entity type
- Individual
- Primary specialty
- EndodonticsDental Providers
- Credential
- DDS
- Sex
- Male
- Sole proprietor
- No
- License
- 22DI02398712 (NJ)
Specialties & taxonomies
Dental Providers
Dental Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
17 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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 2 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amoxicillin | 27 | 26 |
| Ibuprofen | 21 | 21 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-07-31
- Last updated
- 2024-09-24
- Certified
- 2024-09-24
Frequently asked questions
- What is Janatha Withanachchi's NPI number?
- Janatha Withanachchi's National Provider Identifier (NPI) is 1134385016, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Janatha Withanachchi's specialty?
- Janatha Withanachchi is listed in the NPPES registry with a primary specialty of Endodontics (Dental Providers).
- Where is Janatha Withanachchi located?
- Janatha Withanachchi's practice location on file with NPPES is 71 Valley St Ste 100, South Orange, NJ 07079-2825.
- What is Janatha Withanachchi's phone number?
- The practice phone number listed in the NPPES registry for Janatha Withanachchi is (862) 250-6952.
- Does Janatha Withanachchi accept Medicare?
- Janatha Withanachchi is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Janatha Withanachchi's NPI active?
- Yes — Janatha Withanachchi's NPI (1134385016) is active in the NPPES registry as of the last update on 2024-09-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.