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Edit this profileAt a glance
- 20 York St, New Haven, CT 06510
About Dr. Guzzi
The NPI registry lists John Guzzi, MD as a student in an organized health care education program, in New Haven, CT. John trained at Georgetown University School of Medicine, graduating in 2019. According to Medicare claims data, the services billed most often include critical care, first 30-74 minutes and anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope. This provider record is associated with NPI 1750947719.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (203) 688-4242
- Email not available
Is this your home address or personal number? Hide it
Practice Locations
20 YORK ST
New Haven, CT 06510
Procedures Most Often Billed to Medicare
43 services · 24 patients · 2 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope | Anaesthesia | 00731 |
11 | Less often than most peers in Student in training |
| Critical care, first 30-74 minutes | Office visit | 99291 |
32 | As often as other peers in Student in training |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other medical trainees at this location 8
Same specialty, same street address — most likely the same department or group.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other medical trainees in New Haven 3
Same specialty, same city.
More connections — 20 related providers in 3 groups
Trained at Georgetown University School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 2019 at Georgetown University School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope 4
Providers in CT who bill this service to Medicare most often.
Common questions
What kind of doctor is Dr. Guzzi?
Dr. Guzzi is a medical trainee in New Haven, CT. That is the designation recorded for this NPI in the federal registry, where it is listed as “Student in an Organized Health Care Education Program”.
NPI registry
What is Dr. Guzzi's address?
Dr. Guzzi is listed at 20 York St, New Haven, CT 06510. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Dr. Guzzi?
The number on file is (203) 688-4242. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Dr. Guzzi?
Dr. Guzzi's National Provider Identifier is 1750947719. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Dr. Guzzi train?
Dr. Guzzi attended Georgetown University School of Medicine, graduating in 2019. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Guzzi have?
Dr. Guzzi has 7 years experience. Calculated from a graduation year of 2019, reported in the CMS National Downloadable File.
CMS public data
What procedures does Dr. Guzzi perform?
According to Medicare billing data, Dr. Guzzi provides treatments such as anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Guzzi's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Guzzi. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.