NPPES file of Aug 9, 2026

Duminda Bernard Suraweera, M.D.

Gastroenterology Physician · Lancaster, CA

Duminda Bernard Suraweera, M.D. is a gastroenterology physician with a practice address in Lancaster, California, and NPI 1629411756, issued on Apr 8, 2013. Check the license (California A133348, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1629411756
Name
Duminda Bernard Suraweera
Credential
M.D.
Primary taxonomy
Gastroenterology Physician 207RG0100X
License number
A133348 CA
Self-reported in NPPES; status is on the state search
Practice location
43944 15TH St W Ste 201, Lancaster, CA 93534
Phone
(661) 529-7550
Enumerated
Apr 8, 2013
Record last updated
Apr 17, 2024
Fax
(661) 529-7560
Medicare enrollment
Enrolled (PECOS I20160427000513); accepts Medicare assignment
Medical or professional school
Creighton University School Of Medicine, 2013
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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Verify Duminda Bernard Suraweera in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A133348
    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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2.2 times the Medicare Part D claims of the average gastroenterology physician in 2024

1,790 Medicare Part D claims for 839 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 19% of claims.

  1. Duminda Suraweera1,790
  2. Specialty average811

Most prescribed

  1. Omeprazole496 claims
  2. Gavilyte-G330 claims
  3. Peg-3350 And Electrolytes145 claims
  4. Famotidine122 claims
  5. Linzess96 claims
  6. Pantoprazole Sodium88 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.

The practice group's MIPS final score for 2023 (Medicare payment program): 100 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualitynot scored (reweighted)
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%99.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $638.74

34 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 13,350 providers of this specialty with any payment received $5,015.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Duminda Suraweera$638.74
  2. Specialty average$5,015.95

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through 2 group practices

  1. Adventist Health Medical Center TehachapiTehachapi, CA
  2. Gastro Care InstituteLancaster, CA

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

Duminda Bernard Suraweera among 2,140 gastroenterology physician records in California

Duminda Bernard Suraweera, M.D. is one of 2,140 gastroenterology physician records with a practice address in California. 83% 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 80% of them.

  • NPI issued2013 · 80% of these records are older, 17% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileYes · 72% of these records are
  • Graduated2013 · median 2002 among the 1,538 with a school on file
  • Record last updated2024 · 60% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Gastroenterology Physician providers in California

There are 2,140 gastroenterology physician records in California.

The 8 gastroenterology physician records with the nearest ZIP codes

  1. Prithviraj Dharmaraja, M.D.Lancaster, CA 935341932111424
  2. William Go, M.D.Lancaster, CA 935341992972715
  3. Taha Hamoui, MDLancaster, CA 935341265521520
  4. Sethu Madhavan, MDLancaster, CA 935341194732230
  5. Ramanbhai Patel, M.D.Lancaster, CA 935341720006992
  6. Canagartnam Pathmarajah, M.D.Lancaster, CA 935341568488245
  7. Kumaravel Perumalsamy, M.D.Lancaster, CA 935341851484323
  8. Jatinder Pruthi, M.D.Lancaster, CA 935341205852985

Common questions

What is Duminda Bernard Suraweera, M.D.'s NPI number?

Duminda Bernard Suraweera, M.D.'s National Provider Identifier (NPI) is 1629411756, issued on Apr 8, 2013. An NPI identifies a provider in billing; it is not a license.

Where is Duminda Bernard Suraweera, M.D. located?

The NPPES record lists a practice address at 43944 15TH St W Ste 201, Lancaster, CA, 93534. Phone: (661) 529-7550. Providers update this record themselves, so call before visiting.

How can I verify Duminda Bernard Suraweera, M.D.'s license?

NPPES lists California license number A133348, 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 Duminda Bernard Suraweera, M.D. prescribe under Medicare Part D?

In 2024, Duminda Bernard Suraweera, M.D. had 1,790 Medicare Part D claims for 839 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.

What is Duminda Bernard Suraweera, M.D.'s MIPS final score?

The 2023 MIPS final score is 100 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.