Michael Chiorazzi, MD, PHD
Medical Oncology Physician · New Haven, CT
Michael Chiorazzi, MD, PHD is a medical oncology physician with a practice address in New Haven, Connecticut, and NPI 1972878122, issued on Mar 20, 2012. Check the license (Connecticut 61527, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Michael Chiorazzi
- Credential
- MD, PHD
- Primary taxonomy
- Medical Oncology Physician 207RX0202X
- License number
- 61527 CT
Self-reported in NPPES; status is on the state search - Practice location
- 20 York St, New Haven, CT 06510
- Phone
- (203) 361-4534
- Enumerated
- Mar 20, 2012
- Record last updated
- Jun 14, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (203) 785-2966
- Medicare enrollment
- Enrolled (PECOS I20190711002056); accepts Medicare assignment
- Medical or professional school
- Js Weill Medical College, Cornell University, 2012
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest medical oncology physician records → All 99 in Connecticut → Look up another NPI →
Also registered at 20 York St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Cyrena Abbasi, MDStudent in an Organized Health Care Education/Training Program1609703289
- Ali Abboud, MD, MBAStudent in an Organized Health Care Education/Training Program1942943097
- Basil Abdalla, MDStudent in an Organized Health Care Education/Training Program1154905057
- Jasmina AbdallaStudent in an Organized Health Care Education/Training Program1700638590
- Sarah AbdallahPsychiatry Physician1740800952
- Usama Abdelghany, PHARM DOncology Pharmacist1548827843
Verify Michael Chiorazzi in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 61527Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
90% fewer Medicare Part D claims than the average medical oncology physician in 2024
69 Medicare Part D claims for 20 beneficiaries, against an average of 703 among the 4,230 providers of this specialty who prescribed in Part D.
Most prescribed
- Gabapentin11 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).
Bills Medicare through one group practice
- Yale UniversityNew Haven, CT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Michael Chiorazzi among 99 medical oncology physician records in Connecticut
Michael Chiorazzi, MD, PHD is one of 99 medical oncology physician records with a practice address in Connecticut. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 69% of them.
- NPI issued2012 · 69% of these records are older, 28% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 67% of these records are
- Graduated2012 · median 2005 among the 66 with a school on file
- Record last updated2019 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RX0202X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Medical Oncology Physician providers in Connecticut
There are 99 medical oncology physician records in Connecticut.
All 99 in Connecticut → Every provider in New Haven → Medical Oncology Physician nationwide →
The 8 medical oncology physician records with the nearest ZIP codes
- Noffar Bar, M.D.New Haven, CT 065101215179106
- Aarti Bhatia, M.B.B.S.New Haven, CT 065101861629180
- Barbara Burtness, M.D.New Haven, CT 065101194715649
- Charles Fuchs, MD MPHNew Haven, CT 065101396712311
- Veda Giri, M.D.New Haven, CT 065101104893759
- Howard Hochster, M.D.New Haven, CT 065101538160668
- Michael Hurwitz, MD PHDNew Haven, CT 065101396726113
- Joseph Kim, MDNew Haven, CT 065101295913531
Common questions
What is Michael Chiorazzi, MD, PHD's NPI number?
Michael Chiorazzi, MD, PHD's National Provider Identifier (NPI) is 1972878122, issued on Mar 20, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Michael Chiorazzi, MD, PHD located?
The NPPES record lists a practice address at 20 York St, New Haven, CT, 06510. Phone: (203) 361-4534. Providers update this record themselves, so call before visiting.
How can I verify Michael Chiorazzi, MD, PHD's license?
NPPES lists Connecticut license number 61527, 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 Michael Chiorazzi, MD, PHD prescribe under Medicare Part D?
In 2024, Michael Chiorazzi, MD, PHD had 69 Medicare Part D claims for 20 beneficiaries; the average among medical oncology physician prescribers was 703. Part D covers Medicare prescriptions only.
What is Michael Chiorazzi, MD, PHD'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.