Kenneth Wulff, MD
Child & Adolescent Psychiatry · Petaluma, CANPI 1124105085
Payments from drug & device makers
Across 27 payments — averaging $23.37 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Alkermes, Inc.$225
- Teva Pharmaceuticals USA, Inc.$210
- Ironshore Pharmaceuticals Inc.$43
- Otsuka America Pharmaceutical, Inc.$38
- Axsome Therapeutics, Inc.$28
- ITI, Inc. (d/b/a Intra-cellular Therapies, Inc.)$25
- plus $63 from 3 others
What the payments were for
- Food & beverage$631100%
Most of this is food and beverage — typically meals provided during product presentations at a clinic or hospital. Nationally that is the single largest category of reported payments by count.
General payments by program year
Who reported the general payments
Companies are grouped under their corporate parent — a single manufacturer often files under several CMS reporting entities. Research and ownership payments are counted separately and are not in this table.
How this compares
$631 in reported general payments places this provider in the 70th percentile of 434 child & adolescent psychiatry providers in California.
See all child & adolescent psychiatry providers in California →
Medicare billing
What this is not: this is the amount Original Medicare Part B allowed for services this provider billed in 2024. It is not their income. It excludes Medicare Advantage — now more than half of all Medicare enrollment — along with Medicaid and all commercial insurance, and it is gross practice revenue before staff, rent, supplies and malpractice premiums. CMS also suppresses any figure covering ten or fewer patients, so low-volume providers appear smaller than they are.
Most prescribed under Part D
| Drug | Claims | Cost to plans & patients |
|---|---|---|
| Chlorpromazine Hcl | 23 | $6,028 |
| Paliperidone ErPaliperidone | 11 | $3,722 |
| Aripiprazole | 40 | $1,869 |
| Risperidone | 92 | $1,631 |
| Propranolol Hcl | 14 | $1,498 |
| AmantadineAmantadine Hcl | 12 | $1,126 |
| Haloperidol | 12 | $1,078 |
| Divalproex Sodium | 29 | $1,058 |
| Divalproex Sodium ErDivalproex Sodium | 24 | $854 |
| Sertraline Hcl | 75 | $666 |
| Valproic AcidValproic Acid (As Sodium Salt) | 15 | $525 |
| Lithium Carbonate | 71 | $480 |
| Olanzapine | 55 | $438 |
| Quetiapine Fumarate | 28 | $397 |
| Fluoxetine Hcl | 28 | $238 |
Paid to pharmacies, not to this prescriber.
Other child & adolescent psychiatry in Petaluma
- Kevin CoxOjai$2.9M
- Sarah LeeRiverside$735K
- Eliot MoonPasadena$522K
- Robert HendrenSan Francisco$486K
- Michael McManusSan Diego$426K
- Sukhjit BrarFresno$283K
- Manpreet SinghSacramento$238K
- Antonio HardanPalo Alto$160K
- Shirley LiuSan Jose$143K
- Ihab SolimanCorona del Mar$93K
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Billing: Medicare Physician & Other Practitioners, data year 2024. Original Medicare Part B only.
- Identity: NPPES NPI Registry, July 2026.