Diane Wu, MD
NPI 1033572599 · Psychiatry Physician · Oakland, CA
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Diane Wu, MD is a Psychiatry Physician provider in Oakland, CA (NPI 1033572599).
Provider details
- NPI number
- 1033572599
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- A150998 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
10 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 15 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Olanzapine | 28 |
| Benztropine Mesylate | 26 |
| Escitalopram Oxalate | 25 |
| Lamotrigine | 23 |
| Risperidone | 22 |
| Aripiprazole | 16 |
| Quetiapine Fumarate | 14 |
| Buspirone Hcl | 13 |
| Haloperidol Decanoate | 13 |
| Divalproex Sodium | 13 |
These counts cover prescriptions paid through Medicare Part D in 2024 — they include cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means , never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2016-04-01
- Last updated
- 2024-01-26
- Certified
- 2024-01-26
Frequently asked questions
- What is Diane Wu's NPI number?
- Diane Wu's National Provider Identifier (NPI) is 1033572599, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Diane Wu's specialty?
- Diane Wu is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Diane Wu located?
- Diane Wu's practice location on file with NPPES is 2940 Summit St Ste 2d, Oakland, CA 94609-3416.
- What is Diane Wu's phone number?
- The practice phone number listed in the NPPES registry for Diane Wu is (650) 600-9234.
- Does Diane Wu accept Medicare?
- Diane Wu is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Diane Wu's NPI active?
- Yes — Diane Wu's NPI (1033572599) is active in the NPPES registry as of the last update on 2024-01-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.