Eric Joseph Chacko, M.D.
Nephrology Physician · New Haven, CT
Eric Joseph Chacko, M.D. is a nephrology physician with a practice address in New Haven, Connecticut, and NPI 1437654662, issued on Mar 28, 2018. Check the license (Connecticut 74328, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Eric Joseph Chacko
- Credential
- M.D.
- Primary taxonomy
- Nephrology Physician 207RN0300X
- License number
- 74328 CT
Self-reported in NPPES; status is on the state search - Practice location
- 136 Sherman Ave Ste 405, New Haven, CT 06511
- Phone
- (203) 787-0117
- Enumerated
- Mar 28, 2018
- Record last updated
- Jun 4, 2026
- Fax
- (203) 777-3559
- Medicare enrollment
- Enrolled (PECOS I20230706001837); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest nephrology physician records → All 167 in Connecticut → Look up another NPI →
Verify Eric Joseph Chacko in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 74328Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
65% fewer Medicare Part D claims than the average nephrology physician in 2024
508 Medicare Part D claims for 121 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D. Brand-name drugs were 29% of claims.
Most prescribed
- Farxiga83 claims
- Sevelamer Carbonate39 claims
- Losartan Potassium34 claims
- Amlodipine Besylate30 claims
- Allopurinol23 claims
- Tamsulosin Hcl23 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): 91.5 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.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $514.81
24 payments; by number, the most common kind was food and beverage; the largest payer was Amgen Inc. The 8,230 providers of this specialty with any payment received $3,091.37 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
- Metabolism Associates PCNew Haven, CT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Eric Joseph Chacko among 167 nephrology physician records in Connecticut
Eric Joseph Chacko, M.D. is one of 167 nephrology physician records with a practice address in Connecticut. 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 2018, is newer than 90% of them.
- NPI issued2018 · 90% of these records are older, 6% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated2018 · median 2002 among the 116 with a school on file
- Record last updated2026 · 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 207RN0300X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Nephrology Physician providers in Connecticut
There are 167 nephrology physician records in Connecticut.
All 167 in Connecticut → Every provider in New Haven → Nephrology Physician nationwide →
The 8 nephrology physician records with the nearest ZIP codes
- Hugh Carey, MDNew Haven, CT 065111255327276
- Sue Chang, MDNew Haven, CT 065111528054848
- Thomas Eisen, MDNew Haven, CT 065111427044684
- Fredric Finkelstein, MDNew Haven, CT 065111851387088
- Daniel Geisser, MDNew Haven, CT 065111558346056
- Joni Hansson, MDNew Haven, CT 065111760478077
- Alan Kliger, MDNew Haven, CT 065111619963923
- Shirin Shirani, MDNew Haven, CT 065111891781191
Common questions
What is Eric Joseph Chacko, M.D.'s NPI number?
Eric Joseph Chacko, M.D.'s National Provider Identifier (NPI) is 1437654662, issued on Mar 28, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Eric Joseph Chacko, M.D. located?
The NPPES record lists a practice address at 136 Sherman Ave Ste 405, New Haven, CT, 06511. Phone: (203) 787-0117. Providers update this record themselves, so call before visiting.
How can I verify Eric Joseph Chacko, M.D.'s license?
NPPES lists Connecticut license number 74328, 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 Eric Joseph Chacko, M.D. prescribe under Medicare Part D?
In 2024, Eric Joseph Chacko, M.D. had 508 Medicare Part D claims for 121 beneficiaries; the average among nephrology physician prescribers was 1,465. Part D covers Medicare prescriptions only.
What is Eric Joseph Chacko, M.D.'s MIPS final score?
The 2023 MIPS final score is 91.5 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.