Kanagaratnam Jegathesan, MD
Internal Medicine Physician · Waterbury, CT
Kanagaratnam Jegathesan, MD is an internal medicine physician with a practice address in Waterbury, Connecticut, and NPI 1497859409, issued on Sep 11, 2006. Check the license (Connecticut 17004, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Kanagaratnam Jegathesan
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- 17004 CT
170040 CT
Self-reported in NPPES; status is on the state search - Practice location
- 2271 East Main Street, Waterbury, CT 06705
- Phone
- (203) 753-4131
- Enumerated
- Sep 11, 2006
- Record last updated
- Mar 8, 2023
- Fax
- (203) 753-6887
- Medicaid ID
- 001170042 CT
- Medicare enrollment
- Enrolled (PECOS I20031113000713); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,623 in Connecticut → Look up another NPI →
Also registered at 2271 East Main Street
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kanthimathi Jegathesan, MDInternal Medicine Physician1023112034
Verify Kanagaratnam Jegathesan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 17004Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.4 times the Medicare Part D claims of the average internal medicine physician in 2024
10,936 Medicare Part D claims for 594 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims. 151 claims were for opioids.
Most prescribed
- Atorvastatin Calcium603 claims
- Levothyroxine Sodium363 claims
- Amlodipine Besylate307 claims
- Rosuvastatin Calcium251 claims
- Lisinopril231 claims
- Pantoprazole Sodium224 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.
Industry payments in 2024: $561.96
25 payments; by number, the most common kind was food and beverage; the largest payer was Lilly USA, LLC. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Trinity Health OF New England Provider Network Organization IncWaterbury, CT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Kanagaratnam Jegathesan among 2,623 internal medicine physician records in Connecticut
Kanagaratnam Jegathesan, MD is one of 2,623 internal medicine physician records with a practice address in Connecticut. 81% 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 11% of them.
- NPI issued2006 · 11% of these records are older, 52% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated1962 · median 2004 among the 1,646 with a school on file
- Record last updated2023 · 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 Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
119 internal medicine physician records list a practice address in Waterbury
They are 119 of the 3,148 NPPES records with a practice address in Waterbury, and 2,623 internal medicine physician records in Connecticut.
All 2,623 in Connecticut → Every provider in Waterbury → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Edmund Caporaso, MDWaterbury, CT 067051285623538
- Kanthimathi Jegathesan, MDWaterbury, CT 067051023112034
- Diane Kim, MDWaterbury, CT 067051598150716
- Vidya Loganathan, M.D.Waterbury, CT 067051780782953
- Philip Mongelluzzo, M.D.Waterbury, CT 067051871563247
- Edmund Quinn, MDWaterbury, CT 067051306851720
- Donald Rosenthal, MDWaterbury, CT 067051063435170
- Bechoi Saleib, M.D.Waterbury, CT 067051275828261
Common questions
What is Kanagaratnam Jegathesan, MD's NPI number?
Kanagaratnam Jegathesan, MD's National Provider Identifier (NPI) is 1497859409, issued on Sep 11, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Kanagaratnam Jegathesan, MD located?
The NPPES record lists a practice address at 2271 East Main Street, Waterbury, CT, 06705. Phone: (203) 753-4131. Providers update this record themselves, so call before visiting.
How can I verify Kanagaratnam Jegathesan, MD's license?
NPPES lists Connecticut license number 17004, 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 Kanagaratnam Jegathesan, MD prescribe under Medicare Part D?
In 2024, Kanagaratnam Jegathesan, MD had 10,936 Medicare Part D claims for 594 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.