Walter Lin, MD, MBA
NPI 1952481913ActiveIndividual· Internal Medicine· Saint Louis, MO
Internal Medicine (MD, MBA) in Saint Louis, Missouri, trained at University of California, Davis School of Medicine (class of 1999). Their prescriptions cost Medicare Part D more than their services did: $907,273 for 27,509 claims, against $72,956 paid for services in 2024. Otsuka America Pharmaceutical, Inc. reported $15.66 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1952481913 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD, MBA |
| Sole proprietor | No |
| NPI issued | Oct 16, 2006 |
| Last updated in NPPES | Jan 26, 2016 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 2014018787 | MO |
| Internal Medicine | 207R00000X | A89450 | CA |
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 (IL); Practitioner - Internal Medicine (MO) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 265 |
|---|---|
| Services billed | 914 across 22 procedure codes |
| Paid by Medicare | $72,956 |
Part D prescriptions in 2024
| Prescriptions (claims) | 27,509 · 27,736 30-day fills |
|---|---|
| Patients | 421 |
| Total drug cost | $907,273 |
| Generic share | 91% of claims |
Education and affiliations
| Medical school | University of California, Davis School of Medicine |
|---|---|
| Graduation year | 1999 |
| Medicare specialty | Internal Medicine |
Medical groups
- Pai Participant 1 LLCChillicothe, OH · 191 clinicians
- Generation Clinical Partners LLCWaterloo, IL · 24 clinicians
Other facilities
- Elite Home HealthHome health agency · Creve Coeur, MO
- Crown Hospice of St Louis, IncHospice · Creve Coeur, MO
- Fv HospiceHospice · St Louis, MO
- Solace Hospice Care, LLCHospice · O'Fallon, MO
- Aberdeen HeightsNursing home · Kirkwood, MO
- Accolade Healthcare of WaterlooNursing home · Waterloo, IL
- Friendship Village ChesterfieldNursing home · Chesterfield, MO
- McKnight Place Extended CareNursing home · Saint Louis, MO
Industry payments (Open Payments)
- 2025$15.66 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Otsuka America Pharmaceutical, Inc. | $15.66 | 1 |
What the 2025 payments were for
- Food and Beverage$15.66 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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