Arturo Diaz, MD
NPI 1245315852ActiveIndividual· Internal Medicine, Rheumatology· Boston, MA
Internal Medicine, Rheumatology (MD) with Harvard Medical Faculty Phys at Beth Israel Deaconess Med Ctr Inc, practicing in Boston, Massachusetts. Their prescriptions cost Medicare Part D more than their services did: $4,741,884 for 1,723 claims, against $34,850 paid for services in 2024. Sun Pharmaceutical Industries Inc. reported $39.25 in payments in 2025, mostly food and beverage. Lists Beth Israel Deaconess Hospital - Milton and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1245315852 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Oct 25, 2006 |
| Last updated in NPPES | Apr 8, 2011 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Rheumatology Primary | 207RR0500X | 4301074804 | MI |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Internal Medicine (MA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 248 |
|---|---|
| Services billed | 555 across 22 procedure codes |
| Paid by Medicare | $34,850 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,723 · 2,743 30-day fills |
|---|---|
| Patients | 244 |
| Total drug cost | $4,741,884 |
| Generic share | 63% of claims |
Education and affiliations
| Graduation year | 1977 |
|---|---|
| Medicare specialty | Internal Medicine |
| Secondary specialties | Rheumatology |
| Telehealth | Offers telehealth |
Medical group
- Harvard Medical Faculty Phys at Beth Israel Deaconess Med Ctr IncBoston, MA · 1,740 clinicians
Hospital affiliations
- Beth Israel Deaconess Hospital - MiltonMilton, MA
- Beth Israel Deaconess Hospital - NeedhamNeedham, MA
- Beth Israel Deaconess Medical CenterBoston, MA
Industry payments (Open Payments)
- 2025$39.25 · 1 payment from 1 company
- 2024$177.66 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Sun Pharmaceutical Industries Inc. | $39.25 | 1 |
What the 2025 payments were for
- Food and Beverage$39.25 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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