Joyce M. Oen-Hsiao, M.D.
Cardiovascular Disease Physician · New Haven, CT
Joyce M. Oen-Hsiao, M.D. is a cardiovascular disease physician with a practice address in New Haven, Connecticut, and NPI 1619159050, issued on Nov 28, 2007. Check the license (Connecticut 043457, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Joyce M. Oen-Hsiao
- Credential
- M.D.
- Primary taxonomy
- Cardiovascular Disease Physician 207RC0000X
- License number
- 043457 CT
Self-reported in NPPES; status is on the state search - Practice location
- 1450 Chapel St, New Haven, CT 06511
- Phone
- (203) 789-6080
- Enumerated
- Nov 28, 2007
- Record last updated
- Mar 4, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (203) 789-6046
- Medicare enrollment
- Enrolled (PECOS I20050816000547); accepts Medicare assignment
- Medical or professional school
- Yale University School Of Medicine, 2002
- Entity
- Type 1 · individual
8 nearest cardiovascular disease physician records → All 503 in Connecticut → Look up another NPI →
Also registered at 1450 Chapel St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Pirjo Aalto-Fischer, LCSWClinical Social Worker1225473655
- Elie AbdelnourPsychiatry Physician1790346070
- Katherine AdamsSpeech-Language Pathologist1023851821
- Oluwatosin Adeyemo, M.D. , MPHObstetrics Physician1447696844
- Elizabeth Ahmed, M.D.Family Medicine Physician1376551879
- Sohee Ahn, PHARMDPharmacist1649894387
Verify Joyce M. Oen-Hsiao in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 043457Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.4 times the Medicare Part D claims of the average cardiovascular disease physician in 2024
7,294 Medicare Part D claims for 744 beneficiaries, against an average of 3,078 among the 20,728 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium740 claims
- Metoprolol Succinate649 claims
- Furosemide591 claims
- Amlodipine Besylate508 claims
- Losartan Potassium416 claims
- Rosuvastatin Calcium364 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): 73.6 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: $85.91
1 payment: food and beverage; the largest payer was Boston Scientific Corporation. The 16,686 providers of this specialty with any payment received $3,819.56 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
- Yale UniversityGuilford, CT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Joyce M. Oen-Hsiao among 503 cardiovascular disease physician records in Connecticut
Joyce M. Oen-Hsiao, M.D. is one of 503 cardiovascular disease 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 2007, is newer than 55% of them.
- NPI issued2007 · 55% of these records are older, 36% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated2002 · median 2000 among the 348 with a school on file
- Record last updated2011 · 71% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0000X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
96 cardiovascular disease physician records list a practice address in New Haven
They are 96 of the 9,793 NPPES records with a practice address in New Haven, and 503 cardiovascular disease physician records in Connecticut.
All 503 in Connecticut → Every provider in New Haven → Cardiovascular Disease Physician nationwide →
The 8 cardiovascular disease physician records with the nearest ZIP codes
- Mark Blitzer, M.D.New Haven, CT 065111164428207
- Luis Cruz, M.D.New Haven, CT 065111609810480
- Thomas Donohue, MDNew Haven, CT 065111932116324
- Andre Ghantous, M.D.New Haven, CT 065111790731354
- Sarah Hull, M.D.New Haven, CT 065111831351402
- Costin Ionescu, M.D. PH.DNew Haven, CT 065111063513703
- Nimrod Lavi, M.D.New Haven, CT 065111477641264
- Mark Schoenfeld, M.D.New Haven, CT 065111821094947
Common questions
What is Joyce M. Oen-Hsiao, M.D.'s NPI number?
Joyce M. Oen-Hsiao, M.D.'s National Provider Identifier (NPI) is 1619159050, issued on Nov 28, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Joyce M. Oen-Hsiao, M.D. located?
The NPPES record lists a practice address at 1450 Chapel St, New Haven, CT, 06511. Phone: (203) 789-6080. Providers update this record themselves, so call before visiting.
How can I verify Joyce M. Oen-Hsiao, M.D.'s license?
NPPES lists Connecticut license number 043457, 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 Joyce M. Oen-Hsiao, M.D. prescribe under Medicare Part D?
In 2024, Joyce M. Oen-Hsiao, M.D. had 7,294 Medicare Part D claims for 744 beneficiaries; the average among cardiovascular disease physician prescribers was 3,078. Part D covers Medicare prescriptions only.
What is Joyce M. Oen-Hsiao, M.D.'s MIPS final score?
The 2023 MIPS final score is 73.6 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.