Charles Robert Rethy, MD
Internal Medicine Physician · Hamden, CT
Charles Robert Rethy, MD is an internal medicine physician with a practice address in Hamden, Connecticut, and NPI 1982602884, issued on Jul 13, 2005. Check the license (Connecticut 019353, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Charles Robert Rethy
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 019353 CT
Self-reported in NPPES; status is on the state search - Practice location
- 2416 Whitney Ave, Hamden, CT 06518
- Phone
- (203) 248-4331
- Enumerated
- Jul 13, 2005
- Record last updated
- Jan 30, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (203) 248-7118
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,623 in Connecticut → Look up another NPI →
Also registered at 2416 Whitney Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Alexandra Bakovic, ATCAthletic Trainer1730535840
- Cynthia Desmarais, PTPhysical Therapist1891739306
- Kristin Dreissen, DPTPhysical Therapist1508311556
- Diane Griffin, MSPTPhysical Therapist1366549958
Verify Charles Robert Rethy in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 019353Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
76% more Medicare Part D claims than the average internal medicine physician in 2024
5,574 Medicare Part D claims for 439 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 77 claims were for opioids.
Most prescribed
- Amlodipine Besylate337 claims
- Atorvastatin Calcium324 claims
- Rosuvastatin Calcium271 claims
- Atenolol233 claims
- Lisinopril205 claims
- Levothyroxine Sodium186 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 MIPS final score for 2023 (Medicare payment program): 93.3 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.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Charles Robert Rethy among 2,623 internal medicine physician records in Connecticut
Charles Robert Rethy, 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 89% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 63% of these records are
- Record last updated2013 · 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).
35 internal medicine physician records list a practice address in Hamden
They are 35 of the 1,410 NPPES records with a practice address in Hamden, and 2,623 internal medicine physician records in Connecticut.
All 2,623 in Connecticut → Every provider in Hamden → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Alina Alfirii, MDHamden, CT 065181487687570
- Renu Bazaz-Kapoor, DOHamden, CT 065181427045954
- Karen Brown, M.D.Hamden, CT 065181285609412
- Sunita Chhabra, M.D.Hamden, CT 065181568496552
- Paul Clarke, M.D.Hamden, CT 065181548292279
- Holly Craig, M.D.Hamden, CT 065181942275557
- Garumuni Desilva, M.D.Hamden, CT 065181275539892
- William Farmer, M.D.Hamden, CT 065181689660771
Common questions
What is Charles Robert Rethy, MD's NPI number?
Charles Robert Rethy, MD's National Provider Identifier (NPI) is 1982602884, issued on Jul 13, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Charles Robert Rethy, MD located?
The NPPES record lists a practice address at 2416 Whitney Ave, Hamden, CT, 06518. Phone: (203) 248-4331. Providers update this record themselves, so call before visiting.
How can I verify Charles Robert Rethy, MD's license?
NPPES lists Connecticut license number 019353, 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 Charles Robert Rethy, MD prescribe under Medicare Part D?
In 2024, Charles Robert Rethy, MD had 5,574 Medicare Part D claims for 439 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Charles Robert Rethy, MD's MIPS final score?
The 2023 MIPS final score is 93.3 of 100. 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.