Charalambos I. Andreadis, MD
NPI 1205877669ActiveIndividual· Internal Medicine, Medical Oncology· Philadelphia, PA
Internal Medicine, Medical Oncology (MD) in Philadelphia, Pennsylvania, trained at Columbia University College of Physicians and Surgeons (class of 1998). Their prescriptions cost Medicare Part D more than their services did: $3,894,959 for 733 claims, against $77,466 paid for services in 2024. E.R. Squibb & Sons, L.L.C. was the largest of 7 companies reporting payments in 2025, $18,943 in all, mostly consulting fees.
Overview
| NPI | 1205877669 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 9, 2006 |
| Last updated in NPPES | Jan 21, 2011 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Medical Oncology Primary | 207RX0202X | MD073649L | PA |
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 - Hematology/Oncology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 232 |
|---|---|
| Services billed | 3,355 across 29 procedure codes |
| Paid by Medicare | $77,466 |
Part D prescriptions in 2024
| Prescriptions (claims) | 733 · 985 30-day fills |
|---|---|
| Patients | 96 |
| Total drug cost | $3,894,959 |
| Generic share | 63% of claims |
Education and affiliations
| Medical school | Columbia University College of Physicians and Surgeons |
|---|---|
| Graduation year | 1998 |
| Medicare specialty | Hematology/Oncology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical groups
- University of California San FranciscoSan Francisco, CA · 1,839 clinicians
- UCSF Medical Group Business ServicesSan Francisco, CA · 1,598 clinicians
- Regents of the University of CaliforniaSan Francisco, CA · 732 clinicians
Hospital affiliations
- Marinhealth Medical CenterGreenbrae, CA
- UCSF Medical CenterSan Francisco, CA
Industry payments (Open Payments)
- 2025$18,943 · 21 payments from 7 companies
- 2024$15,973 · 19 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| E.R. Squibb & Sons, L.L.C. | $11,599 | 4 |
| Genmab U.S., Inc. | $3,651 | 4 |
| Incyte Corporation | $2,055 | 1 |
| Celgene Corporation | $927.46 | 6 |
| Abbvie Inc. | $577.78 | 4 |
What the 2025 payments were for
- Consulting Fee$17,201 · 5 payments
- Food and Beverage$895.88 · 13 payments
- Travel and Lodging$845.78 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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