Doctor profile · Federal record
Dr. John Fountain, MD
Critical Care Medicine (Internal Medicine) Physician (CMS: Pulmonary Disease) · Internal Medicine Physician · Internal Medicine Physician · Pulmonary Disease Physician · Boston, MA
- NPI 1225590383
- MIPS 93.4 / 100 · 2023
- 7 yrs in practice
- Licensed in 2 states
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 3 locations .
- Primary practice
-
55 Fruit St
Boston, MA 021142621
(617) 724-9674 - Additional location
-
300 Mount Auburn St Ste 419
Cambridge, MA 021385665
(617) 354-8771 - Additional location
-
330 Brookline Ave
Boston, MA 022155400 - Mailing address
-
330 Mount Auburn St, Parsons 2
Cambridge, MA 021385597
Credentials & registration
- NPI registered
- April 2019 — 7 yrs on file
- Profile last updated
- January 21, 2026
- Year of graduation
- 2019 — 7 yrs since
- Specialty taxonomy
- 207RC0200X — NUCC code
- State licenses (2)
- Massachusetts #1019462 · New York #314912
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1225590383. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
143
Distinct HCPCS
3
Medicare allowed
$13,645
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 120 | 23 | $89 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 12 | 11 | $74 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 11 | 11 | $194 |
In context: peer comparison
Among 17 peers in Boston Critical Care Medicine (Internal Medicine) Physician, average services per provider: 92. This provider delivers 1.6× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
31
Patients
0
Total drug cost
$536
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 19 | 0 | $388 |
| Fluticasone Propionate | Generic | 12 | 0 | $148 |
Frequently asked questions
What is Dr. John Fountain's medical specialty?
Dr. John Fountain practices Critical Care Medicine (Internal Medicine) Physician in Boston, MA.
Where does Dr. John Fountain practice?
Dr. John Fountain practices at 55 Fruit St, Boston, MA 021142621. Office phone: 6177249674.
What is Dr. John Fountain's NPI?
Dr. John Fountain's National Provider Identifier (NPI) is 1225590383, issued by NPPES.
Does Dr. John Fountain accept Medicare assignment?
Dr. John Fountain does not accept Medicare assignment for all services. Patients may be billed amounts beyond Medicare-allowed charges.
What procedures does Dr. John Fountain commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Established patient office or other outpatient visit (HCPCS 99213); Initial hospital care with moderate level of medical decision making (HCPCS 99223). Source: CMS Medicare Physician & Other Practitioners file.