Registry data as of Aug 27, 2026

Buddhini Gurusinghe, M.D.

Internal Medicine Physician · Danbury, CT

Buddhini Gurusinghe, M.D. is an internal medicine physician with a practice address in Danbury, Connecticut, and NPI 1992019723, issued on Aug 4, 2010. Check the license (Connecticut 52195, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1992019723
Name
Buddhini Gurusinghe
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
52195 CT
Self-reported in NPPES; status is on the state search
Practice location
79 Sand Pit RD, Danbury, CT 06810
Phone
(203) 749-5700
Enumerated
Aug 4, 2010
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 79 Sand Pit RD

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

  1. Debra Adler-Klein, MDInfectious Disease Physician1245278886
  2. Joann Ahern, APRNMedical-Surgical Clinical Nurse Specialist1770566317
  3. Bailey Gartman, LCSW, AADCAddiction (Substance Use Disorder) Counselor1083344683
  4. Iris Gilligan, LCSWClinical Social Worker1700247889
  5. Stacey Lombardo, DNP, APRN, NP-CAdult Health Nurse Practitioner1891245916
  6. Guarina Molina, MDStudent in an Organized Health Care Education/Training Program1700465341

Verify Buddhini Gurusinghe in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersConnecticut Medical Examining Board
    Search for license 52195
    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 Connecticut 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.

41% more Medicare Part D claims than the average internal medicine physician in 2024

3,914 Medicare Part D claims for 520 beneficiaries, against an average of 2,785 among the 127,794 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims. 54 claims were for opioids.

  1. Buddhini Gurusinghe3,914
  2. Specialty average2,785

Most prescribed

  1. Atorvastatin Calcium397 claims
  2. Amlodipine Besylate321 claims
  3. Levothyroxine Sodium246 claims
  4. Metformin Hcl146 claims
  5. Lisinopril124 claims
  6. Losartan Potassium123 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 Medicare quality score for 2023: 94.2 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score78.3
  2. Costout of 100 · 30%
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

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

One hospital or facility affiliation

  1. Nuvance Health Medical Practice CT IncDanbury, CT

Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

91 internal medicine physician records list a Danbury practice address

They are 91 of the 2,412 NPPES records with a Danbury practice address, and 2,830 internal medicine physician records in Connecticut.

Other internal medicine physician records in Connecticut

  1. Christina AbavanaBridgeport, CT1508206574
  2. Hoda Abdel Salam, M.D.New Britain, CT1144509316
  3. Gada Abdelhafiz, MDNew London, CT1467649558
  4. Mahmoud Abdelrahman, MDBridgeport, CT1467072868
  5. Simon Abi-SalehBridgeport, CT1891315529
  6. Gerard Abidor, D.O.Bridgeport, CT1518014539
  7. Richard Abraham, M.D.Canton, CT1023044252
  8. Odaliz Abreu-Lanfranco, MDNew Haven, CT1538276134
  9. Nila Aburto, MDStamford, CT1396325718
  10. Angelo Accomando, M.D.East Haven, CT1063454247

Common questions

What is Buddhini Gurusinghe, M.D.'s NPI number?

Buddhini Gurusinghe, M.D.'s National Provider Identifier (NPI) is 1992019723, issued on Aug 4, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Buddhini Gurusinghe, M.D. located?

The NPPES record lists a practice address at 79 Sand Pit RD, Danbury, CT, 06810. Phone: (203) 749-5700. Providers update this record themselves, so call before visiting.

How can I verify Buddhini Gurusinghe, M.D.'s license?

NPPES lists Connecticut license number 52195, as entered by the provider. Search the Connecticut Medical Examining Board at https://www.elicense.ct.gov/Lookup/LicenseLookup.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Buddhini Gurusinghe, M.D. prescribe under Medicare Part D?

In 2024, Buddhini Gurusinghe, M.D. had 3,914 Medicare Part D claims for 520 beneficiaries; the average among internal medicine physician prescribers was 2,785. Part D covers Medicare prescriptions only.

What is Buddhini Gurusinghe, M.D.'s Medicare quality score?

The 2023 MIPS final score is 94.2 of 100. The average among 454,083 clinicians with a measured score was 83.5.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.