Doctor profile · Federal record
Dr. John Chiosi, M.D.
Infectious Disease Physician (CMS: Infectious Disease) · Boston, MA
- NPI 1306231097
- Accepts Medicare
- 11 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
55 Fruit St., Cox 5
Boston, MA 02114
(617) 726-3906
fax (617) 726-7653
Credentials & registration
- NPI registered
- March 2015 — 11 yrs on file
- Profile last updated
- June 1, 2023
- Year of graduation
- 2015 — 11 yrs since
- Specialty taxonomy
- 207RI0200X — NUCC code
- State license (1)
- Massachusetts #279009
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1306231097. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
96
Distinct HCPCS
3
Medicare allowed
$10,854
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 50 | 23 | $85 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 34 | 14 | $128 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 12 | 12 | $187 |
In context: peer comparison
Among 71 peers in Boston Infectious Disease Physician, average services per provider: 59. This provider delivers 1.6× the peer median.Frequently asked questions
What is Dr. John Chiosi's medical specialty?
Dr. John Chiosi practices Infectious Disease Physician in Boston, MA.
Where does Dr. John Chiosi practice?
Dr. John Chiosi practices at 55 Fruit St., Boston, MA 02114. Office phone: 6177263906.
What is Dr. John Chiosi's NPI?
Dr. John Chiosi's National Provider Identifier (NPI) is 1306231097, issued by NPPES.
Does Dr. John Chiosi accept Medicare assignment?
Yes. Dr. John Chiosi accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. John Chiosi commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Initial hospital care with moderate level of medical decision making (HCPCS 99223). Source: CMS Medicare Physician & Other Practitioners file.