Kristine Ahern, MD
NPI 1871543702ActiveIndividual· Dermatology· Mountain View, CA
Dermatology (MD) in Mountain View, California, trained at Stanford University School of Medicine (class of 1998). 475 Medicare patients in 2024, $180,894 paid; nearly all of their 776 Part D prescriptions were generic (93%). Genzyme Corporation was the largest of 13 companies reporting payments in 2025, $1,121 in all, mostly food and beverage.
Overview
| NPI | 1871543702 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | May 11, 2006 |
| Last updated in NPPES | Feb 15, 2012 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Dermatology Primary | 207N00000X | A69488 | CA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Dermatology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 475 |
|---|---|
| Services billed | 3,031 across 54 procedure codes |
| Paid by Medicare | $180,894 |
Part D prescriptions in 2024
| Prescriptions (claims) | 776 · 961 30-day fills |
|---|---|
| Patients | 276 |
| Total drug cost | $225,596 |
| Generic share | 93% of claims |
Education and affiliations
| Medical school | Stanford University School of Medicine |
|---|---|
| Graduation year | 1998 |
| Medicare specialty | Dermatology |
| Telehealth | Offers telehealth |
Medical group
- Sutter Bay Medical FoundationFremont, CA · 3,829 clinicians
Industry payments (Open Payments)
- 2025$1,121 · 40 payments from 13 companies
- 2024$862.76 · 30 payments from 14 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Genzyme Corporation | $255.40 | 4 |
| Janssen Biotech, Inc. | $124.32 | 5 |
| Galderma Laboratories, L.P. | $103.63 | 5 |
| Arcutis Biotherapeutics, Inc. | $100.02 | 5 |
| Organon LLC | $87.46 | 3 |
What the 2025 payments were for
- Food and Beverage$1,121 · 40 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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