NPPES file of Aug 9, 2026

Shyam Sasidharan Kolangara, MD

Geriatric Medicine (Internal Medicine) Physician · Westlake Village, CA

Shyam Sasidharan Kolangara, MD is a geriatric medicine (internal medicine) physician with a practice address in Westlake Village, California, and NPI 1497138499, issued on Jul 8, 2015. Check the license (California A184725, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1497138499
Name
Shyam Sasidharan Kolangara
Credential
MD
Primary taxonomy
Geriatric Medicine (Internal Medicine) Physician 207RG0300X
License number
A184725 CA
Self-reported in NPPES; status is on the state search
Practice location
1250 LA Venta Dr Ste 207, Westlake Village, CA 91361
Phone
(805) 494-6920
Enumerated
Jul 8, 2015
Record last updated
Oct 2, 2025
Fax
(805) 494-6922
Medicare enrollment
Enrolled (PECOS I20230602001456); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 1250 LA Venta Dr Ste 207

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Maryum Merchant, M.D.Pulmonary Disease Physician1902024532
  2. Anitha Srinivasa, M.D.Hospitalist Physician1306876149

Verify Shyam Sasidharan Kolangara in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A184725
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

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55% fewer Medicare Part D claims than the average geriatric medicine (internal medicine) physician in 2024

1,894 Medicare Part D claims for 226 beneficiaries, against an average of 4,246 among the 3,116 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims.

  1. Shyam Kolangara1,894
  2. Specialty average4,246

Most prescribed

  1. Atorvastatin Calcium170 claims
  2. Amlodipine Besylate115 claims
  3. Metformin Hcl84 claims
  4. Losartan Potassium72 claims
  5. Hydrochlorothiazide67 claims
  6. Lisinopril65 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 2 group practices

  1. Clinicas Del Camino Real IncFillmore, CA
  2. The Regents OF The University OF CaliforniaWestlake Village, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Shyam Sasidharan Kolangara among 532 geriatric medicine (internal medicine) physician records in California

Shyam Sasidharan Kolangara, MD is one of 532 geriatric medicine (internal medicine) physician records with a practice address in California. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 82% of them.

  • NPI issued2015 · 82% of these records are older, 16% newer
  • In a Medicare fileYes · 77% of these records are
  • In the CMS Doctors and Clinicians fileYes · 51% of these records are
  • Graduated2011 · median 1999 among the 271 with a school on file
  • Record last updated2025 · 62% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0300X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Geriatric Medicine (Internal Medicine) Physician providers in California

There are 532 geriatric medicine (internal medicine) physician records in California.

The 8 geriatric medicine (internal medicine) physician records with the nearest ZIP codes

  1. Peter Chuang, M.D.Woodland Hills, CA 913641780879445
  2. Laurence Silverstein, M.D.Tarzana, CA 913561588755466
  3. Anil Date, M.D.Canyon Country, CA 913511972860864
  4. Hayka Hovsepyan, MDMission Hills, CA 913451013338706
  5. Cathy Alessi, M.D.North Hills, CA 913431134224983
  6. Constance Fung, MDNorth Hills, CA 913431720007792
  7. Samuel Murray, M.D.Sepulveda, CA 913431427168327
  8. Diane SuzukiNorth Hills, CA 913431437174463

Common questions

What is Shyam Sasidharan Kolangara, MD's NPI number?

Shyam Sasidharan Kolangara, MD's National Provider Identifier (NPI) is 1497138499, issued on Jul 8, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Shyam Sasidharan Kolangara, MD located?

The NPPES record lists a practice address at 1250 LA Venta Dr Ste 207, Westlake Village, CA, 91361. Phone: (805) 494-6920. Providers update this record themselves, so call before visiting.

How can I verify Shyam Sasidharan Kolangara, MD's license?

NPPES lists California license number A184725, 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 Shyam Sasidharan Kolangara, MD prescribe under Medicare Part D?

In 2024, Shyam Sasidharan Kolangara, MD had 1,894 Medicare Part D claims for 226 beneficiaries; the average among geriatric medicine (internal medicine) physician prescribers was 4,246. 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.