Raymond Diaz, MD
NPI 1346250024 · Gastroenterology Physician · Great Neck, NY
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Raymond Diaz, MD is a Gastroenterology Physician provider in Great Neck, NY (NPI 1346250024).
Provider details
- NPI number
- 1346250024
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 213794 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
329 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 71 | $104 |
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 60 | $394 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 53 | $9 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 37 | $142 |
| Biopsy of Large Bowel Using a Flexible Endoscope45380 | 32 | $440 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 25 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Omeprazole | 370 | 204 |
| Pantoprazole Sodium | 143 | 64 |
| Famotidine | 70 | 36 |
| Hydrocortisone | 68 | 53 |
| Sucralfate | 26 | 21 |
| Lisinopril | 25 | — |
| Mesalamine | 25 | — |
| Ursodiol | 23 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$588 across 24 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-08
- Last updated
- 2013-02-15
Frequently asked questions
- What is Raymond Diaz's NPI number?
- Raymond Diaz's National Provider Identifier (NPI) is 1346250024, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Raymond Diaz's specialty?
- Raymond Diaz is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Raymond Diaz located?
- Raymond Diaz's practice location on file with NPPES is 307 E Shore Rd, Great Neck, NY 11023-2420.
- What is Raymond Diaz's phone number?
- The practice phone number listed in the NPPES registry for Raymond Diaz is (516) 233-2838.
- Does Raymond Diaz accept Medicare?
- Raymond Diaz is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Raymond Diaz's NPI active?
- Yes — Raymond Diaz's NPI (1346250024) is active in the NPPES registry as of the last update on 2013-02-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.