Nimali Mendis, M.D.
NPI 1952306979 · Rheumatology Physician · Seattle, WA
Enrolled with Medicare as Practitioner - Rheumatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nimali Mendis, M.D. is a Rheumatology Physician provider in Seattle, WA (NPI 1952306979).
Provider details
- NPI number
- 1952306979
- Entity type
- Individual
- Primary specialty
- Rheumatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- MD00036002 (WA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
21 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
118 Medicare services, 2024 (ranked within specialty)
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 methodology.
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 | 96 | $139 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 22 | $16 |
Typical Medicare-allowed amounts for these services range $16–$139 (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 · 15 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisone | 124 | 34 |
| Methotrexate Sodiumbrand: Methotrexate | 99 | 22 |
| Hydroxychloroquine Sulfate | 59 | 13 |
| Allopurinol | 43 | — |
| Alendronate Sodium | 38 | 15 |
| Folic Acid | 35 | — |
| Sulfasalazine | 30 | — |
Practice location
Mailing address
Additional practice locations (1)
- 601 S Carr Rd Ste 100Renton, WA 98055-5802Phone: (425) 227-3700Fax: (425) 227-3115
Registry dates
- Enumerated
- 2005-06-16
- Last updated
- 2021-06-17
- Certified
- 2021-06-17
Frequently asked questions
- What is Nimali Mendis's NPI number?
- Nimali Mendis's National Provider Identifier (NPI) is 1952306979, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nimali Mendis's specialty?
- Nimali Mendis is listed in the NPPES registry with a primary specialty of Rheumatology Physician (Allopathic & Osteopathic Physicians).
- Where is Nimali Mendis located?
- Nimali Mendis's practice location on file with NPPES is 1200 12th Ave S, Seattle, WA 98144-2712.
- What is Nimali Mendis's phone number?
- The practice phone number listed in the NPPES registry for Nimali Mendis is (206) 326-2400.
- Does Nimali Mendis accept Medicare?
- Nimali Mendis is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nimali Mendis's NPI active?
- Yes — Nimali Mendis's NPI (1952306979) is active in the NPPES registry as of the last update on 2021-06-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.