Jose Valentin Diaz, D.O.
Surgery · West Islip, NY
At a glance
1000 Montauk Hwy, West Islip, NY 11795
Published activity: Colonoscopy · Upper gastrointestinal (GI) endoscopy for acid reflux. View counts and coverage
NPPES record updated Aug 23, 2018. 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
1000 Montauk HwyWest Islip, NY 11795
Additional reported practice locations
1300 Roanoke AveRiverhead, NY 119012031
Phone: 6315486446 163 Van Buren Rd
Caribou, ME 047363567
Phone: 2074933500
Education & affiliations
- Medical / professional school
- Not reported in this file
- Graduation year
- 2011
- CMS specialties
- Critical Care (Intensivists) · General Surgery
Practice groups
Reported hospital affiliations
- Chsli St Joseph Hospital Bethpage, NY
- Good Samaritan Hospital Medical Center West Islip, NY
- Long Island Community Hospital Patchogue, 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.
| Procedure category | Published Medicare activity |
|---|---|
| Colonoscopy | 1-10 |
| Upper gastrointestinal (GI) endoscopy for acid reflux | 1-10 |
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
- Surgery
- Taxonomy code
- 208600000X
- Enumeration date
- Sep 28, 2011
- Record updated
- Aug 23, 2018
More registry details
- Provider type
- Individual · Type 1
- Reported credentials
- D.O.
Reported taxonomies and licenses
208600000X
License reported: 294195 NY
208600000X · Primary
License reported: LT18018 ME
License numbers and credentials are reported to NPPES; HCPList does not independently verify them.
Practice location
1000 Montauk HwyWest Islip, NY 11795
- Phone
- (631) 465-6343
Mailing address
12204 150TH AVESOUTH OZONE PARK, NY 114204113
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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