Joseph C. Lin, M.D.
NPI 1801810601ActiveIndividual· Internal Medicine, Gastroenterology· Baltimore, MD
Internal Medicine, Gastroenterology (M.D.) with Tidalhealth Specialty Care LLC and 2 other groups, practicing in Baltimore, Maryland. Their prescriptions cost Medicare Part D more than their services did: $181,549 for 538 claims, against $60,712 paid for services in 2024. Gilead Sciences, Inc. was the largest of 8 companies reporting payments in 2025, $1,566 in all, mostly food and beverage. Lists Atlantic General Hospital as a hospital affiliation.
Overview
| NPI | 1801810601 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Jul 26, 2006 |
| Last updated in NPPES | May 29, 2025 |
| Certified by provider | May 29, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | D0027670 | MD |
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 - Gastroenterology (MD) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 348 |
|---|---|
| Services billed | 639 across 17 procedure codes |
| Paid by Medicare | $60,712 |
Part D prescriptions in 2024
| Prescriptions (claims) | 538 · 1,044 30-day fills |
|---|---|
| Patients | 287 |
| Total drug cost | $181,549 |
| Generic share | 83% of claims |
Education and affiliations
| Graduation year | 1976 |
|---|---|
| Medicare specialty | Gastroenterology |
Medical groups
- Tidalhealth Specialty Care LLCSalisbury, MD · 398 clinicians
- Tidalhealth Atlantic IncSelbyville, DE · 91 clinicians
- Joseph C. Lin, M.D. LLCBaltimore, MD · 2 clinicians
Hospital affiliation
- Atlantic General HospitalBerlin, MD
Industry payments (Open Payments)
- 2025$1,566 · 41 payments from 8 companies
- 2024$1,229 · 34 payments from 10 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Gilead Sciences, Inc. | $389.94 | 14 |
| Janssen Biotech, Inc. | $304.43 | 5 |
| Madrigal Pharmaceuticals | $239.90 | 6 |
| Ardelyx, Inc. | $180.09 | 6 |
| Abbvie Inc. | $169.91 | 6 |
What the 2025 payments were for
- Food and Beverage$1,476 · 40 payments
- Education$89.99 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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