Diana Wu, MD
NPI 1588001622 · Family Medicine Physician · Los Angeles, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Diana Wu, MD is a Family Medicine Physician provider in Los Angeles, CA (NPI 1588001622).
Provider details
- NPI number
- 1588001622
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- Yes
- License
- 20118 (NH)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
13 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
23 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. 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 .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Electrocardiogram (ecg) 1 to 3 Leads With Review By Physician93040 | 23 | $16 |
Typical Medicare-allowed amounts for these services range $16–$16 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 47 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 371 | 141 |
| Losartan Potassium | 239 | 90 |
| Amlodipine Besylate | 221 | 91 |
| Metoprolol Succinate | 117 | 38 |
| Alendronate Sodium | 97 | 35 |
| Metformin Hclbrand: Metformin Hcl Er | 78 | 23 |
| Metformin Hcl |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$73 across 3 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2013-05-30
- Last updated
- 2022-10-06
- Certified
- 2022-10-06
Frequently asked questions
- What is Diana Wu's NPI number?
- Diana Wu's National Provider Identifier (NPI) is 1588001622, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Diana Wu's specialty?
- Diana Wu is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Diana Wu located?
- Diana Wu's practice location on file with NPPES is 400 W 30th St, Los Angeles, CA 90007-3320.
- What is Diana Wu's phone number?
- The practice phone number listed in the NPPES registry for Diana Wu is (213) 284-3200.
- Does Diana Wu accept Medicare?
- Diana Wu is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Diana Wu's NPI active?
- Yes — Diana Wu's NPI (1588001622) is active in the NPPES registry as of the last update on 2022-10-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.