John Wu, M.D.
NPI 1295804201 · Emergency Medicine Physician · Westminster, CA
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Wu, M.D. is a Emergency Medicine Physician provider in Westminster, CA (NPI 1295804201).
Provider details
- NPI number
- 1295804201
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 2614 (MN)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
878 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Emergency Department Visit With High Level of Medical Decision Making99285 | 284 | $185 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 233 | $9 |
| X-Ray of Chest, 1 View71045 | 126 | $9 |
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 85 | $128 |
| Critical Care, First 30-74 Minutes99291 | 85 | $228 |
| New Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 15 Minutes Or More99202 | 34 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 16 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Cephalexin | 76 | 75 |
| Azithromycin | 49 | 49 |
| Prednisone | 38 | 38 |
| Naproxen | 38 | 38 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 36 | 36 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 36 | 35 |
| Ondansetronbrand: Ondansetron Odt | 28 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-11-06
- Last updated
- 2023-03-15
- Certified
- 2023-03-15
Frequently asked questions
- What is John Wu's NPI number?
- John Wu's National Provider Identifier (NPI) is 1295804201, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Wu's specialty?
- John Wu is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is John Wu located?
- John Wu's practice location on file with NPPES is 200 Hospital Cir, Westminster, CA 92683-3910.
- What is John Wu's phone number?
- The practice phone number listed in the NPPES registry for John Wu is (818) 340-9988.
- Does John Wu accept Medicare?
- John Wu is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Wu's NPI active?
- Yes — John Wu's NPI (1295804201) is active in the NPPES registry as of the last update on 2023-03-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.