Doctor profile · Federal record
Dr. Raymond Diaz, MD
Gastroenterology Physician (CMS: Gastroenterology) · Great Neck, NY
- NPI 1346250024
- Accepts Medicare
- 33 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
307 E Shore RD, 2Nd Floor
Great Neck, NY 110232420
(516) 233-2838
fax (718) 425-8934
Credentials & registration
- NPI registered
- August 2006 — 20 yrs on file
- Profile last updated
- February 15, 2013
- Year of graduation
- 1993 — 33 yrs since
- Specialty taxonomy
- 207RG0100X — NUCC code
- State license (1)
- New York #213794
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1346250024. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
317
Distinct HCPCS
10
Medicare allowed
$68,304
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 66 | 46 | $104 | |
43239 |
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 64 | 64 | $396 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 41 | 26 | $130 | |
45380 |
Biopsy of large bowel using a flexible endoscope | 32 | 32 | $484 | |
36415 |
Insertion of needle into vein for collection of blood sample | 28 | 18 | $8 | |
93000 |
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | 19 | 17 | $16 | |
45380 |
Biopsy of large bowel using a flexible endoscope | 15 | 15 | $204 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 15 | 15 | $194 | |
45378 |
Diagnostic exam of large bowel using a flexible endoscope | 14 | 14 | $180 | |
G0121 |
Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk | 12 | 12 | $400 |
In context: peer comparison
Among 11 peers in Great Neck Gastroenterology Physician, average services per provider: 71. This provider delivers 4.5× the peer median.Open Payments
Industry payments received
All-time total
$588
Transactions
24
Manufacturers
12
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Takeda Pharmaceuticals U.S.A., INC. | 7 | $173.69 | |
| Madrigal Pharmaceuticals | 3 | $100.16 | |
| Celltrion USA INC. | 2 | $56.75 | |
| Gilead Sciences, INC. | 2 | $48.49 | |
| Phathom Pharmaceuticals, INC. | 2 | $39.73 | |
| Intercept Pharmaceuticals, INC. | 2 | $31.11 | |
| Ipsen Biopharmaceuticals, INC | 1 | $28.31 | |
| Lilly USA, LLC | 1 | $26.92 | |
| Abbvie INC. | 1 | $24.50 | |
| Ardelyx, INC. | 1 | $21.26 | |
| Shield Therapeutics INC | 1 | $20.62 | |
| CapsoVision, INC. | 1 | $16.21 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
401
Patients
188
Total drug cost
$6,606
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Pantoprazole Sodium | Generic | 122 | 57 | $1,911 |
| Omeprazole | Generic | 111 | 75 | $1,275 |
| Famotidine | Generic | 39 | 22 | $446 |
| Amoxicillin | Generic | 17 | 17 | $157 |
| Clarithromycin | Generic | 17 | 17 | $495 |
| Ursodiol | Generic | 16 | 0 | $1,621 |
| Zolpidem Tartrate | Generic | 16 | 0 | $45 |
| Metformin Hcl | Generic | 15 | 0 | $97 |
| Amlodipine Besylate | Generic | 14 | 0 | $136 |
| Fenofibrate (Fenofibrate Nanocrystallized) | Brand | 12 | 0 | $151 |
Frequently asked questions
What is Dr. Raymond Diaz's medical specialty?
Dr. Raymond Diaz practices Gastroenterology Physician in Great Neck, NY.
Where does Dr. Raymond Diaz practice?
Dr. Raymond Diaz practices at 307 E Shore RD, Great Neck, NY 110232420. Office phone: 5162332838.
What is Dr. Raymond Diaz's NPI?
Dr. Raymond Diaz's National Provider Identifier (NPI) is 1346250024, issued by NPPES.
Does Dr. Raymond Diaz accept Medicare assignment?
Yes. Dr. Raymond Diaz accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Raymond Diaz commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (HCPCS 43239); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.