David A. Mesibov, MD
NPI 1912001520ActiveIndividual· Family Medicine· Los Alamos, NM
Family Medicine (MD) in Los Alamos, New Mexico, trained at University of New Mexico School of Medicine (class of 1994). Their prescriptions cost Medicare Part D more than their services did: $230,374 for 2,158 claims, against $75,569 paid for services in 2024. Lilly USA, LLC was the largest of 13 companies reporting payments in 2025, $555.27 in all, mostly food and beverage.
Overview
| NPI | 1912001520 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Sep 12, 2006 |
| Last updated in NPPES | Aug 7, 2013 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | 97-99 | NM |
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 - Family Practice (NM) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 308 |
|---|---|
| Services billed | 1,912 across 42 procedure codes |
| Paid by Medicare | $75,569 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,158 · 3,458 30-day fills |
|---|---|
| Patients | 100 |
| Total drug cost | $230,374 |
| Generic share | 86% of claims |
Education and affiliations
| Medical school | University of New Mexico School of Medicine |
|---|---|
| Graduation year | 1994 |
| Medicare specialty | Family Practice |
Medical group
- Drs Lahiri and Mesibov LLCLos Alamos, NM · 4 clinicians
Hospital affiliations
- Christus St Vincent Regional Medical CenterSanta Fe, NM
- Los Alamos Medical CenterLos Alamos, NM
Industry payments (Open Payments)
- 2025$555.27 · 29 payments from 13 companies
- 2024$653.31 · 32 payments from 14 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Lilly USA, LLC | $99.16 | 5 |
| Abbott Laboratories | $91.89 | 4 |
| Astrazeneca Pharmaceuticals LP | $75.32 | 4 |
| Pfizer Inc. | $67.36 | 4 |
| Novo Nordisk Inc | $49.58 | 3 |
What the 2025 payments were for
- Food and Beverage$555.27 · 29 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 19 family medicine physicians in Los Alamos · All family medicine physicians in New Mexico