Chathura Wijewardena, M.D
NPI 1659807097 · Rheumatology Physician · Orchard Park, NY
Enrolled with Medicare as Practitioner - Rheumatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Chathura Wijewardena, M.D is a Rheumatology Physician provider in Orchard Park, NY (NPI 1659807097).
Provider details
- NPI number
- 1659807097
- Entity type
- Individual
- Primary specialty
- Rheumatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D
- Sex
- Male
- Sole proprietor
- No
- License
- 334407 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
9 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
563 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. 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 .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 416 | $91 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 87 | $124 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 36 | $61 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 24 | $63 |
Typical Medicare-allowed amounts for these services range $61–$124 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 42 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisone | 506 | 160 |
| Methotrexate Sodiumbrand: Methotrexate | 384 | 125 |
| Hydroxychloroquine Sulfate | 340 | 128 |
| Etanerceptbrand: Enbrel Sureclick | 148 | 16 |
| Diclofenac Sodium | 116 | 55 |
| Mycophenolate Mofetil | 92 | 25 |
| Pregabalin |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$166 across 8 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (2)
- 3500 Sheridan DrAmherst, NY 14226-1548Phone: (716) 204-4263
- 462 Grider StreetEcmc/Dk Miller BuildingBuffalo, NY 14215Phone: (716) 898-3941
Registry dates
- Enumerated
- 2017-05-04
- Last updated
- 2025-11-07
- Certified
- 2025-11-07
Frequently asked questions
- What is Chathura Wijewardena's NPI number?
- Chathura Wijewardena's National Provider Identifier (NPI) is 1659807097, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Chathura Wijewardena's specialty?
- Chathura Wijewardena is listed in the NPPES registry with a primary specialty of Rheumatology Physician (Allopathic & Osteopathic Physicians).
- Where is Chathura Wijewardena located?
- Chathura Wijewardena's practice location on file with NPPES is 3055 Southwestern Blvd Ste 100, Orchard Park, NY 14127-1231.
- What is Chathura Wijewardena's phone number?
- The practice phone number listed in the NPPES registry for Chathura Wijewardena is (716) 675-2500.
- Does Chathura Wijewardena accept Medicare?
- Chathura Wijewardena is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Chathura Wijewardena's NPI active?
- Yes — Chathura Wijewardena's NPI (1659807097) is active in the NPPES registry as of the last update on 2025-11-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.