Timothy Chandler, D.O.
NPI 1740433622ActiveIndividual· Internal Medicine· Lancaster, CA
Internal Medicine (D.O.) in Lancaster, California, trained at Lake Erie College of Osteopathic Medicine, Erie (class of 2016). Their prescriptions cost Medicare Part D more than their services did: $487,067 for 7,181 claims, against $1,729 paid for services in 2024.
Overview
| NPI | 1740433622 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | D.O. |
| Sole proprietor | No |
| NPI issued | Oct 23, 2008 |
| Last updated in NPPES | Nov 29, 2021 |
| Certified by provider | Jan 24, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 20A1046 | CA |
| Physician Assistant, Medical | 363AM0700X | — | — |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | — |
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 | Yes (participating) |
Medicare services in 2024
| Medicare patients | 18 |
|---|---|
| Services billed | 26 across 9 procedure codes |
| Paid by Medicare | $1,729 |
Part D prescriptions in 2024
| Prescriptions (claims) | 7,181 · 18,337 30-day fills |
|---|---|
| Patients | 832 |
| Total drug cost | $487,067 |
| Generic share | 85% of claims |
Education and affiliations
| Medical school | Lake Erie College of Osteopathic Medicine, Erie |
|---|---|
| Graduation year | 2016 |
| Medicare specialty | Internal Medicine |
Medical group
- Southern California Permanente Medical GroupRedlands, CA · 11,293 clinicians
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 79 internal medicine physicians in Lancaster · All internal medicine physicians in California