Charlotte Santiago Carlson
NPI 1598056426ActiveIndividual· Physician Assistant, Medical· Signal Hill, CA
Physician Assistant, Medical in Signal Hill, California, trained at University of South Carolina School of Medicine (class of 2011). Their prescriptions cost Medicare Part D more than their services did: $225,821 for 1,110 claims, against $6,211 paid for services in 2024. Abbvie Inc. was the largest of 18 companies reporting payments in 2025, $2,243 in all, mostly food and beverage.
Overview
| NPI | 1598056426 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Sole proprietor | Yes |
| NPI issued | Apr 26, 2011 |
| Last updated in NPPES | Apr 26, 2011 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant, Medical Primary | 363AM0700X | — | — |
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 - Physician Assistant (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 49 |
|---|---|
| Services billed | 89 across 12 procedure codes |
| Paid by Medicare | $6,211 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,110 · 1,287 30-day fills |
|---|---|
| Patients | 412 |
| Total drug cost | $225,821 |
| Generic share | 96% of claims |
Education and affiliations
| Medical school | University of South Carolina School of Medicine |
|---|---|
| Graduation year | 2011 |
| Medicare specialty | Physician Assistant |
Medical group
- Tower Dermatology PCLos Angeles, CA · 3 clinicians
Hospital affiliation
- Cedars-Sinai Medical CenterLos Angeles, CA
Industry payments (Open Payments)
- 2025$2,243 · 83 payments from 18 companies
- 2024$2,644 · 105 payments from 18 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $364.54 | 8 |
| Genzyme Corporation | $336.97 | 9 |
| Sun Pharmaceutical Industries Inc. | $328.40 | 6 |
| Amgen Inc. | $187.53 | 10 |
| Pfizer Inc. | $187.05 | 11 |
What the 2025 payments were for
- Food and Beverage$2,058 · 81 payments
- Education$184.99 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records