Kester Wu, DO
NPI 1609253699 · Internal Medicine Physician · Baldwin Park, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Kester Wu, DO is a Internal Medicine Physician provider in Baldwin Park, CA (NPI 1609253699).
Provider details
- NPI number
- 1609253699
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
11 yrs in NPPES registry
- Profile completeness38% of score
83% 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 · 75 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 270 | 125 |
| Lisinopril | 141 | 66 |
| Amlodipine Besylate | 136 | 67 |
| Losartan Potassium | 121 | 56 |
| Metformin Hcl | 102 | 48 |
| Omeprazole | 97 | 47 |
| Rosuvastatin Calcium |
Practice location
Mailing address
Registry dates
- Enumerated
- 2015-04-29
- Last updated
- 2022-12-09
- Certified
- 2022-12-09
Frequently asked questions
- What is Kester Wu's NPI number?
- Kester Wu's National Provider Identifier (NPI) is 1609253699, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Kester Wu's specialty?
- Kester Wu is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Kester Wu located?
- Kester Wu's practice location on file with NPPES is 1011 Baldwin Park Blvd, Baldwin Park, CA 91706-5806.
- What is Kester Wu's phone number?
- The practice phone number listed in the NPPES registry for Kester Wu is (626) 851-1011.
- Does Kester Wu accept Medicare?
- Kester Wu is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Kester Wu's NPI active?
- Yes — Kester Wu's NPI (1609253699) is active in the NPPES registry as of the last update on 2022-12-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.