Lee Brett Eisan, MD
NPI 1871674333ActiveIndividual· Internal Medicine· Danville, CA
Internal Medicine (MD) in Danville, California, trained at Irvine California College of Medicine (class of 1977). 50 Medicare patients in 2024, $63,406 paid; nearly all of their 920 Part D prescriptions were generic (90%).
Overview
| NPI | 1871674333 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Oct 18, 2006 |
| Last updated in NPPES | Jul 8, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 00G37664 | 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 (CA) |
|---|---|
| Accepts assignment | No (non-participating) |
Medicare services in 2024
| Medicare patients | 50 |
|---|---|
| Services billed | 891 across 9 procedure codes |
| Paid by Medicare | $63,406 |
Part D prescriptions in 2024
| Prescriptions (claims) | 920 · 1,995 30-day fills |
|---|---|
| Patients | 47 |
| Total drug cost | $72,194 |
| Generic share | 90% of claims |
Education and affiliations
| Medical school | Irvine California College of Medicine |
|---|---|
| Graduation year | 1977 |
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Hospital affiliation
- San Ramon Regional Medical CenterSan Ramon, CA
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 32 internal medicine physicians in Danville · All internal medicine physicians in California