Ruth G. Diaz, MD
NPI 1235119066ActiveIndividual· Internal Medicine· Hauppauge, NY
Internal Medicine (MD) with Comprehensive Medical Associates PLLC, practicing in Hauppauge, New York. Their prescriptions cost Medicare Part D more than their services did: $54,269 for 963 claims, against $14,135 paid for services in 2024. Boston Scientific Corporation was the largest of 2 companies reporting payments in 2025, $220.70 in all, mostly food and beverage.
Overview
| NPI | 1235119066 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Jan 18, 2006 |
| Last updated in NPPES | Feb 25, 2020 |
| Certified by provider | Feb 25, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 116667 | NY |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Internal Medicine (NY) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 33 |
|---|---|
| Services billed | 110 across 8 procedure codes |
| Paid by Medicare | $14,135 |
Part D prescriptions in 2024
| Prescriptions (claims) | 963 · 2,208 30-day fills |
|---|---|
| Patients | 79 |
| Total drug cost | $54,269 |
| Generic share | 92% of claims |
Education and affiliations
| Graduation year | 1966 |
|---|---|
| Medicare specialty | Internal Medicine |
Medical group
- Comprehensive Medical Associates PLLCHauppauge, NY · 2 clinicians
Industry payments (Open Payments)
- 2025$220.70 · 3 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Boston Scientific Corporation | $174.05 | 1 |
| Medicomp Inc | $46.65 | 2 |
What the 2025 payments were for
- Food and Beverage$220.70 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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