John Timothy Lam, M.D.
NPI 1821013012ActiveIndividual· Pathology, Anatomic Pathology & Clinical Pathology· Jackson, MS
Pathology, Anatomic Pathology & Clinical Pathology (M.D.) in Jackson, Mississippi, trained at Tulane University School of Medicine (class of 1990). Medicare paid $31,894 for services to 213 patients in 2024. Adaptive Biotechnologies Corporation was the largest of 2 companies reporting payments in 2025, $37.96 in all, mostly food and beverage.
Overview
| NPI | 1821013012 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jul 12, 2006 |
| Last updated in NPPES | Jan 6, 2016 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Pathology, Anatomic Pathology & Clinical Pathology Primary | 207ZP0102X | 18833 | MS |
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 - Pathology (MS) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 213 |
|---|---|
| Services billed | 1,189 across 25 procedure codes |
| Paid by Medicare | $31,894 |
Education and affiliations
| Medical school | Tulane University School of Medicine |
|---|---|
| Graduation year | 1990 |
| Medicare specialty | Pathology |
Medical group
- State of Mississippi - University of Mississippi Medical CenterJackson, MS · 965 clinicians
Hospital affiliations
- Merit Health MadisonCanton, MS
- Merit Health River RegionVicksburg, MS
- St Dominic-Jackson Memorial HospitalJackson, MS
- University of Mississippi Med CenterJackson, MS
- University of Mississippi Medical Center- GrenadaGrenada, MS
Industry payments (Open Payments)
- 2025$37.96 · 2 payments from 2 companies
- 2024$53.46 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Adaptive Biotechnologies Corporation | $19.30 | 1 |
| Caris Mpi, Inc. | $18.66 | 1 |
What the 2025 payments were for
- Food and Beverage$37.96 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 52 pathologists in Jackson · All pathologists in Mississippi