Ryan Din, MD
NPI 1679139133ActiveIndividual· Internal Medicine, Allergy & Immunology· Boston, MA
Internal Medicine, Allergy & Immunology (MD) in Boston, Massachusetts, trained at Harvard Medical School (class of 2024). Their prescriptions cost Medicare Part D more than their services did: $240,612 for 146 claims, against $4,209 paid for services in 2024. Abbvie Inc. was the largest of 24 companies reporting payments in 2025, $3,416 in all, mostly food and beverage.
Overview
| NPI | 1679139133 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | May 10, 2019 |
| Last updated in NPPES | Feb 6, 2026 |
| Certified by provider | Feb 6, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Allergy & Immunology Primary | 207RA0201X | 1020183 | MA |
| Hospitalist | 208M00000X | 1020183 | MA |
| Internal Medicine | 207R00000X | 1020183 | MA |
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 - Allergy/Immunology (MA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 33 |
|---|---|
| Services billed | 33 across 4 procedure codes |
| Paid by Medicare | $4,209 |
Part D prescriptions in 2024
| Prescriptions (claims) | 146 · 275 30-day fills |
|---|---|
| Patients | 27 |
| Total drug cost | $240,612 |
| Generic share | 42% of claims |
Education and affiliations
| Medical school | Harvard Medical School |
|---|---|
| Graduation year | 2024 |
| Medicare specialty | Allergy/Immunology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical groups
- Massachusetts General Physicians Organization IncBoston, MA · 3,558 clinicians
- Harvard Medical Faculty Phys at Beth Israel Deaconess Med Ctr IncBoston, MA · 1,740 clinicians
- Associated Physicians of Harvard Medical Faculty Physicians at Beth IsMilton, MA · 565 clinicians
- Boston Food Allergy Center LLC Bi NetworkBoston, MA · 4 clinicians
Hospital affiliation
- Beth Israel Deaconess Medical CenterBoston, MA
Industry payments (Open Payments)
- 2025$3,416 · 115 payments from 24 companies
- 2024$1,243 · 40 payments from 11 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $833.00 | 16 |
| Astrazeneca Pharmaceuticals LP | $501.75 | 18 |
| Galderma Laboratories, L.P. | $327.58 | 10 |
| Genzyme Corporation | $237.13 | 8 |
| Regeneron Healthcare Solutions, Inc. | $205.25 | 12 |
What the 2025 payments were for
- Food and Beverage$3,343 · 114 payments
- Education$73.50 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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