Dean John Nickles, MD
NPI 1255390050ActiveIndividual· Internal Medicine· Emeryville, CA
Internal Medicine (MD) in Emeryville, California, trained at West Virginia University School of Medicine (class of 1975). Their prescriptions cost Medicare Part D more than their services did: $616,468 for 6,805 claims, against $170,547 paid for services in 2024.
Overview
| NPI | 1255390050 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Mar 21, 2006 |
| Last updated in NPPES | Apr 22, 2024 |
| Certified by provider | Apr 22, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | G44039 | CA |
| Internal Medicine, Critical Care Medicine | 207RC0200X | G44039 | 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 | Yes (participating) |
Medicare services in 2024
| Medicare patients | 576 |
|---|---|
| Services billed | 2,351 across 46 procedure codes |
| Paid by Medicare | $170,547 |
Part D prescriptions in 2024
| Prescriptions (claims) | 6,805 · 16,257 30-day fills |
|---|---|
| Patients | 592 |
| Total drug cost | $616,468 |
| Generic share | 89% of claims |
Education and affiliations
| Medical school | West Virginia University School of Medicine |
|---|---|
| Graduation year | 1975 |
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- University Healthcare AlliancePleasanton, CA · 327 clinicians
Hospital affiliations
- Alta Bates Summit Medical CenterOakland, CA
- Alta Bates Summit Medical Center - Alta Bates CampBerkeley, CA
- Stanford Health CareStanford, CA
- Stanford Health Care Tri-ValleyPleasanton, CA
Other facilities
- A1 Pro Home Health Inc.Home health agency · San Leandro, CA
- Blc Homehealth IncHome health agency · San Leandro, CA
- Gateway Home Health Corp.Home health agency · San Ramon, CA
- Healthflex Home Health ServicesHome health agency · Oakland, CA
- St Paul's TowersNursing home · Oakland, 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 29 internal medicine physicians in Emeryville · All internal medicine physicians in California