Karenna Anne Dickerson, MD
NPI 1295952810ActiveIndividual· Obstetrics & Gynecology· Foothill Ranch, CA
Obstetrics & Gynecology (MD) in Foothill Ranch, California, trained at Indiana University School of Medicine (class of 2004). 76 Medicare patients in 2024, $10,743 paid; nearly all of their 105 Part D prescriptions were generic (94%). Sumitomo Pharma America, Inc. was the largest of 3 companies reporting payments in 2025, $61.94 in all, mostly food and beverage.
Overview
| NPI | 1295952810 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 18, 2007 |
| Last updated in NPPES | Aug 8, 2025 |
| Certified by provider | Aug 8, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Obstetrics & Gynecology Primary | 207V00000X | C146775 | 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 - Obstetrics/Gynecology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 76 |
|---|---|
| Services billed | 178 across 25 procedure codes |
| Paid by Medicare | $10,743 |
Part D prescriptions in 2024
| Prescriptions (claims) | 105 · 171 30-day fills |
|---|---|
| Patients | 40 |
| Total drug cost | $5,691 |
| Generic share | 94% of claims |
Education and affiliations
| Medical school | Indiana University School of Medicine |
|---|---|
| Graduation year | 2004 |
| Medicare specialty | Obstetrics/Gynecology |
Medical group
- Hoag ClinicNewport Beach, CA · 460 clinicians
Hospital affiliation
- Hoag Memorial Hospital PresbyterianNewport Beach, CA
Industry payments (Open Payments)
- 2025$61.94 · 3 payments from 3 companies
- 2024$87.17 · 4 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Sumitomo Pharma America, Inc. | $29.01 | 1 |
| Bayer Healthcare Pharmaceuticals Inc. | $23.73 | 1 |
| Mayne Pharma Commercial LLC | $9.20 | 1 |
What the 2025 payments were for
- Food and Beverage$61.94 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Obstetrics & Gynecology providers in Foothill Ranch
- 1427686807