Kanishka Wijegunaratne, M.D.
Internal Medicine Physician · Encino, CA
Kanishka Wijegunaratne, M.D. is an internal medicine physician with a practice address in Encino, California, and NPI 1669714754, issued on Mar 26, 2013. Check the license (California A135131, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Kanishka Wijegunaratne
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A135131 CA
Self-reported in NPPES; status is on the state search - Practice location
- 16837 Shileno PL, Encino, CA 91436
- Phone
- (310) 388-6798
- Enumerated
- Mar 26, 2013
- Record last updated
- Sep 2, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20160801002691); accepts Medicare assignment
- Medical or professional school
- Chicago College Of Medicine And Surgery, 2013
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Verify Kanishka Wijegunaratne in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A135131Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
43% fewer Medicare Part D claims than the average internal medicine physician in 2024
1,804 Medicare Part D claims for 174 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 53 claims were for opioids.
Most prescribed
- Amlodipine Besylate94 claims
- Rosuvastatin Calcium51 claims
- Gabapentin49 claims
- Ipratropium-Albuterol46 claims
- Atorvastatin Calcium45 claims
- Eliquis39 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Kansal IncSanta Monica, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Kanishka Wijegunaratne among 17,696 internal medicine physician records in California
Kanishka Wijegunaratne, M.D. is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 71% of them.
- NPI issued2013 · 71% of these records are older, 26% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2013 · median 2004 among the 11,065 with a school on file
- Record last updated2020 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
44 internal medicine physician records list a practice address in Encino
They are 44 of the 3,136 NPPES records with a practice address in Encino, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Encino → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Isaac Adatto, M.D.Encino, CA 914361437263845
- Esfandiar Esfandiarifard, MDEncino, CA 914361063514479
- Darius Gharib, M.D.Encino, CA 914361013929918
- Jasmin Javaherian, D.OEncino, CA 914361447294715
- David Kayne, M.D.Encino, CA 914361144334533
- Melvin Khaw, M.D.Encino, CA 914361487624045
- Allan Klass, M DEncino, CA 914361346261039
- Ulf Lando, MDEncino, CA 914361487769063
Common questions
What is Kanishka Wijegunaratne, M.D.'s NPI number?
Kanishka Wijegunaratne, M.D.'s National Provider Identifier (NPI) is 1669714754, issued on Mar 26, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Kanishka Wijegunaratne, M.D. located?
The NPPES record lists a practice address at 16837 Shileno PL, Encino, CA, 91436. Phone: (310) 388-6798. Providers update this record themselves, so call before visiting.
How can I verify Kanishka Wijegunaratne, M.D.'s license?
NPPES lists California license number A135131, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Kanishka Wijegunaratne, M.D. prescribe under Medicare Part D?
In 2024, Kanishka Wijegunaratne, M.D. had 1,804 Medicare Part D claims for 174 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.