Doctor profile · Federal record
Dr. John-Paul Grenier, M.D.
Diagnostic Radiology Physician (CMS: Diagnostic Radiology) · New York, NY
- NPI 1366977092
- Accepts Medicare
- 9 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
1468 Madison Ave
New York, NY 100296508
(212) 241-6500 - Additional location
-
800 Old Metairie Dr
Metairie, LA 700016095
(225) 610-6520 - Mailing address
-
8577 66Th Ave
Rego Park, NY 113745219
Credentials & registration
- NPI registered
- May 2017 — 9 yrs on file
- Profile last updated
- September 26, 2024
- Year of graduation
- 2017 — 9 yrs since
- Specialty taxonomy
- 2085R0202X — NUCC code
- State license (1)
- Louisiana #2085R0202X
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1366977092. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
791
Distinct HCPCS
10
Medicare allowed
$35,072
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
70450 |
Ct scan head or brain without contrast | 139 | 135 | $44 | |
71045 |
X-ray of chest, 1 view | 126 | 126 | $10 | |
71046 |
X-ray of chest, 2 views | 114 | 114 | $12 | |
74177 |
Ct scan of abdomen and pelvis with contrast | 85 | 84 | $97 | |
71275 |
Ct scan of blood vessels of chest with contrast | 48 | 48 | $95 | |
72125 |
Ct scan of upper spine without contrast | 47 | 46 | $52 | |
70496 |
Ct scan of blood vessels of head with contrast | 29 | 29 | $92 | |
70498 |
Ct scan of blood vessels of neck with contrast | 28 | 28 | $89 | |
73502 |
X-ray of hip, 2-3 views | 18 | 17 | $12 | |
74176 |
Ct scan of abdomen and pelvis without contrast | 18 | 18 | $94 |
In context: peer comparison
Among 315 peers in New York Diagnostic Radiology Physician, average services per provider: 372. This provider delivers 2.1× the peer median.Hospital affiliations
Frequently asked questions
What is Dr. John-Paul Grenier's medical specialty?
Dr. John-Paul Grenier practices Diagnostic Radiology Physician in New York, NY.
Where does Dr. John-Paul Grenier practice?
Dr. John-Paul Grenier practices at 1468 Madison Ave, New York, NY 100296508. Office phone: 2122416500.
What is Dr. John-Paul Grenier's NPI?
Dr. John-Paul Grenier's National Provider Identifier (NPI) is 1366977092, issued by NPPES.
Does Dr. John-Paul Grenier accept Medicare assignment?
Yes. Dr. John-Paul Grenier accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. John-Paul Grenier commonly perform?
Top Medicare-reported procedures in 2023: Ct scan head or brain without contrast (HCPCS 70450); X-ray of chest, 1 view (HCPCS 71045); X-ray of chest, 2 views (HCPCS 71046). Source: CMS Medicare Physician & Other Practitioners file.