Physician Profile
Unclaimed ProfileAbout CHIOSI
Based in Boston, MA, John Chiosi, M.D. is listed in the NPI registry under infectious disease. John graduated from Icahn School of Medicine at Mount Sinai in 2015.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Areas of Expertise
Common questions
What kind of doctor is Dr. Chiosi?
Dr. Chiosi is an infectious disease in Boston, MA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “INFECTIOUS DISEASE”.
NPI registry
What is Dr. Chiosi's address?
Dr. Chiosi is listed at 55 FRUIT ST. COX 5, Boston, MA 02114. 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. Chiosi?
The number on file is (617) 726-3906. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Chiosi?
Dr. Chiosi's National Provider Identifier is 1306231097. 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. Chiosi train?
Dr. Chiosi attended Icahn School of Medicine at Mount Sinai, graduating in 2015. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Chiosi have?
Dr. Chiosi has 11 years experience. Calculated from a graduation year of 2015, reported in the CMS National Downloadable File.
CMS public data
What procedures does Dr. Chiosi perform?
According to Medicare billing data, Dr. Chiosi the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Chiosi's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Chiosi. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (617) 726-3906
- Email not available
Practice Locations
55 FRUIT ST. COX 5
Boston, MA 02114
Procedures Most Often Billed to Medicare
105 services · 61 patients · 4 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | Office visit | 99232 |
52 |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | Office visit | 99233 |
27 |
| Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | Office visit | 99222 |
13 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
13 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
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Claim this profileRelated providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other infectious diseases at this location 1
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 infectious diseases in Boston 7
Same specialty, same city.
More connections — 15 related providers in 2 groups
Trained at Icahn School of Medicine at Mount Sinai 7
Other providers in the same specialty who trained at the same institution.
Class of 2015 at Icahn School of Medicine at Mount Sinai 8
Providers who graduated from the same medical school in the same year.
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.