John-Paul Grenier, M.D.
Diagnostic Radiology (CMS) · New York, NY
At a glance
1468 Madison Ave, New York, NY 10029-6508
NPPES record updated Sep 26, 2024. Public records can lag behind changes at a practice.
Before you call: a quick checklist
- Are you accepting new patients?
- Do you accept my specific insurance plan?
- Do you provide the service I need at this address?
- Do I need a referral, and what is the earliest appointment?
Insurance participation and appointment availability are not established by these public records.
Medicare & insurance
Insurance participation is not established by these public records. Ask the practice and your insurer about your specific plan and this location.
How to check your coverage
Use your plan’s provider directory or the member-services number on your insurance card. Confirm the clinician, practice address, service, and whether a referral is required. A missing opt-out record does not establish Medicare acceptance.
Check the official Medicare directory ↗Practice location
1468 Madison AveNew York, NY 10029-6508
Additional reported practice locations
800 Old Metairie DrMetairie, LA 700016095
Phone: 2256106520
Education & affiliations
- Medical / professional school
- Louisiana State University School Of Medicine In New Orleans
- Graduation year
- 2017
- CMS specialties
- Diagnostic Radiology
Practice groups
Reported hospital affiliations
- Mount Sinai Beth Israel New York, NY
- Mount Sinai Hospital New York, NY
- Mount Sinai West New York, NY
- Ny Eye And Ear Infirmary Of Mount Sinai New York, NY
Graduation year does not establish years in practice. A reported affiliation does not establish employment, current admitting privileges, or insurance participation.
Source: CMS National Downloadable File · Published Oct 15, 2026.
Source: CMS Facility Affiliation Data · Published Oct 15, 2026.
Procedures in the public data
Reported activity can help you ask more informed questions about a practice’s services.
No displayed procedure-category record in this release. This does not mean the clinician performs no procedures.
CMS uses a one-year claims window with a reporting lag. Counts cover the Medicare activity included by CMS, not all patients. “1–10” is a published range. Volume is not a quality or outcomes score. Coverage and methodology
Source: CMS Utilization Data · Published Oct 15, 2026.
Find providers with a similar service mix
Compare 2024 published Medicare activity in the same reported specialty, here or in another city.
Industry-reported general payments
No matching general-payment summary in the imported release. This is not a verified zero and does not rule out other payment types or years.
Source: CMS 2025 payments grouped by covered recipient and nature of payments · Published Jun 30, 2026.
Professional details: NPI, taxonomy & registry record
Registry details
- Primary taxonomy
- Diagnostic Radiology (CMS)
- Taxonomy code
- 2085R0202X
- Enumeration date
- May 1, 2017
- Record updated
- Sep 26, 2024
More registry details
- Provider type
- Individual · Type 1
- Reported credentials
- M.D.
Reported taxonomies and licenses
2085R0202X · Primary
License reported: 2085R0202X LA
License numbers and credentials are reported to NPPES; HCPList does not independently verify them.
Practice location
1468 Madison AveNew York, NY 10029-6508
- Phone
- (212) 241-6500
Mailing address
8577 66TH AVEREGO PARK, NY 113745219
Information may be outdated or incomplete. Confirm details directly with the practice. HCPList is an independent directory and is not affiliated with CMS.
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