Dale A. Kooistra, M.D., PHD.
NPI 1831182971ActiveIndividual· Dermatology· Poway, CA
Dermatology (M.D., PHD.) in Poway, California, trained at Stanford University School of Medicine (class of 1984). 363 Medicare patients in 2024, $127,550 paid; nearly all of their 674 Part D prescriptions were generic (97%). Janssen Biotech, Inc. was the largest of 10 companies reporting payments in 2025, $929.99 in all, mostly food and beverage.
Overview
| NPI | 1831182971 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D., PHD. |
| Sole proprietor | No |
| NPI issued | Aug 24, 2005 |
| Last updated in NPPES | Jul 13, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Dermatology Primary | 207N00000X | G55734 | 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 - Dermatology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 363 |
|---|---|
| Services billed | 2,504 across 65 procedure codes |
| Paid by Medicare | $127,550 |
Part D prescriptions in 2024
| Prescriptions (claims) | 674 · 802 30-day fills |
|---|---|
| Patients | 305 |
| Total drug cost | $166,793 |
| Generic share | 97% of claims |
Education and affiliations
| Medical school | Stanford University School of Medicine |
|---|---|
| Graduation year | 1984 |
| Medicare specialty | Dermatology |
Medical group
- Rishu Gupta MD IncPoway, CA · 2 clinicians
Industry payments (Open Payments)
- 2025$929.99 · 44 payments from 10 companies
- 2024$1,022 · 51 payments from 13 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Janssen Biotech, Inc. | $267.41 | 16 |
| Regeneron Healthcare Solutions, Inc. | $201.28 | 7 |
| Novartis Pharmaceuticals Corporation | $91.89 | 4 |
| Galderma Laboratories, L.P. | $90.81 | 5 |
| E.R. Squibb & Sons, L.L.C. | $76.94 | 3 |
What the 2025 payments were for
- Food and Beverage$833.87 · 42 payments
- Education$96.12 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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