John Guzzi, MD
Student in an Organized Health Care Education/Training Program · New Haven, CT
John Guzzi, MD is a student in an organized health care education/training program with a practice address in New Haven, Connecticut, and NPI 1750947719, issued on May 15, 2019. Check the license with the Connecticut board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- John Guzzi
- Credential
- MD
- Primary taxonomy
- Student in an Organized Health Care Education/Training Program 390200000X
- Practice location
- 20 York St, New Haven, CT 06510
- Phone
- (203) 688-4242
- Enumerated
- May 15, 2019
- Record last updated
- May 15, 2019 (not updated in 7 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20230809003013); accepts Medicare assignment
- Medical or professional school
- Georgetown University School Of Medicine, 2019
- Entity
- Type 1 · individual
8 nearest student in an organized health care education/training program records → All 5,184 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.
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- 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 John Guzzi in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Connecticut board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
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 UniversityTrumbull, CT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John Guzzi among 5,184 student in an organized health care education/training program records in Connecticut
John Guzzi, MD is one of 5,184 student in an organized health care education/training program records with a practice address in Connecticut. 32% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 18% of them.
- NPI issued2019 · 18% of these records are older, 78% newer
- In a Medicare fileYes · 32% of these records are
- In the CMS Doctors and Clinicians fileYes · 4% of these records are
- Graduated2019 · median 2017 among the 207 with a school on file
- Record last updated2019 · 26% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 390200000X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1,845 student in an organized health care education/training program records list a practice address in New Haven
They are 1,845 of the 9,793 NPPES records with a practice address in New Haven, and 5,184 student in an organized health care education/training program records in Connecticut.
All 5,184 in Connecticut → Every provider in New Haven → Student in an Organized Health Care Education/Training Program nationwide →
The 8 student in an organized health care education/training program records with the nearest ZIP codes
- Eric FalkeNew Haven, CT 065101952585119
- Lee Hampton, M.D.New Haven, CT 065101760666804
- Jennifer Hewett, M.D.New Haven, CT 065101558537225
- Rebecca Hommer, M.D.New Haven, CT 065101902081169
- Thomas HuangNew Haven, CT 065101093981714
- Yuki Mukai, M.D.New Haven, CT 065101417139759
- Madhuram Nagarajan, M.B.B.S (MD EQUIVAL)New Haven, CT 065101376725671
- Marie Peddinghaus, MDNew Haven, CT 065101528234416
Common questions
What is John Guzzi, MD's NPI number?
John Guzzi, MD's National Provider Identifier (NPI) is 1750947719, issued on May 15, 2019. An NPI identifies a provider in billing; it is not a license.
Where is John Guzzi, MD located?
The NPPES record lists a practice address at 20 York St, New Haven, CT, 06510. Phone: (203) 688-4242. Providers update this record themselves, so call before visiting.
How can I verify John Guzzi, MD's license?
Search the Connecticut board that licenses this profession; the NPPES record confirms identity only.
What is John Guzzi, MD'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.