NPPES file of Aug 9, 2026

Kumari Maya Jayawardena, MD

Geriatric Medicine (Internal Medicine) Physician · Fontana, CA

Kumari Maya Jayawardena, MD is a geriatric medicine (internal medicine) physician with a practice address in Fontana, California, and NPI 1255388385, issued on May 26, 2006. Check the license (California A81717, 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
1255388385
Name
Kumari Maya Jayawardena
Credential
MD
Primary taxonomy
Geriatric Medicine (Internal Medicine) Physician 207RG0300X
License number
A81717 CA
Self-reported in NPPES; status is on the state search
Practice location
9961 Sierra Ave, Fontana, CA 92335
Phone
(909) 427-3041
Enumerated
May 26, 2006
Record last updated
Feb 10, 2022
Medicare enrollment
Enrolled (PECOS I20040729001385); accepts Medicare assignment
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 9961 Sierra Ave

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

  1. Solomon Abila, MDFamily Medicine Physician1871652479
  2. Jenny Abouelsood, M.D.Family Medicine Physician1457638512
  3. Marla Abrolat, MDPediatrics Physician1164593133
  4. Eduardo Acosta, MDPediatrics Physician1497803324
  5. Michael Adair, MDFamily Medicine Physician1780732651
  6. Berneva Adams, MDObstetrics & Gynecology Physician1376602987

Verify Kumari Maya Jayawardena in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A81717
    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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69% fewer Medicare Part D claims than the average geriatric medicine (internal medicine) physician in 2024

1,311 Medicare Part D claims for 249 beneficiaries, against an average of 4,246 among the 3,116 providers of this specialty who prescribed in Part D. Brand-name drugs were 4% of claims. 11 claims were for opioids.

  1. Kumari Jayawardena1,311
  2. Specialty average4,246

Most prescribed

  1. Memantine Hcl350 claims
  2. Buspirone Hcl226 claims
  3. Sertraline Hcl225 claims
  4. Trazodone Hcl79 claims
  5. Quetiapine Fumarate73 claims
  6. Mirtazapine64 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

  1. Southern California Permanente Medical GroupOntario, CA

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

Kumari Maya Jayawardena among 532 geriatric medicine (internal medicine) physician records in California

Kumari Maya Jayawardena, 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 2006, is newer than 7% of them.

  • NPI issued2006 · 7% of these records are older, 46% newer
  • In a Medicare fileYes · 77% of these records are
  • In the CMS Doctors and Clinicians fileYes · 51% of these records are
  • Graduated1996 · median 1999 among the 271 with a school on file
  • Record last updated2022 · 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. Thet Oo, MDColton, CA 923241538152095
  2. Katalin Danji, M.D.Loma Linda, CA 923541750504080
  3. James Larsen, M.D.Loma Linda, CA 923541760403547
  4. Cesar Libanati, M.D.Loma Linda, CA 923541962563338
  5. Vishvanath Date, M.D.Loma Linda, CA 923571851482541
  6. Margaret Griffin, M.D.Loma Linda, CA 923571447260047
  7. Russell Hoxie, M.D.Loma Linda, CA 923571841290558
  8. Malwinder Multani, M.D.Loma Linda, CA 923571497919575

Common questions

What is Kumari Maya Jayawardena, MD's NPI number?

Kumari Maya Jayawardena, MD's National Provider Identifier (NPI) is 1255388385, issued on May 26, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Kumari Maya Jayawardena, MD located?

The NPPES record lists a practice address at 9961 Sierra Ave, Fontana, CA, 92335. Phone: (909) 427-3041. Providers update this record themselves, so call before visiting.

How can I verify Kumari Maya Jayawardena, MD's license?

NPPES lists California license number A81717, 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 Kumari Maya Jayawardena, MD prescribe under Medicare Part D?

In 2024, Kumari Maya Jayawardena, MD had 1,311 Medicare Part D claims for 249 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.