Christina Wu, M.D.
NPI 1790837920 · Internal Medicine Physician · Union City, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Christina Wu, M.D. is a Internal Medicine Physician provider in Union City, CA (NPI 1790837920).
Provider details
- NPI number
- 1790837920
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- A84072 (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
19 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 · 87 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 362 | 169 |
| Losartan Potassium | 203 | 94 |
| Amlodipine Besylate | 203 | 94 |
| Levothyroxine Sodium | 161 | 70 |
| Fluticasone Propionate | 142 | 69 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 139 | 46 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-01-17
- Last updated
- 2021-12-13
Frequently asked questions
- What is Christina Wu's NPI number?
- Christina Wu's National Provider Identifier (NPI) is 1790837920, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Christina Wu's specialty?
- Christina Wu is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Christina Wu located?
- Christina Wu's practice location on file with NPPES is 3553 Whipple Rd, Union City, CA 94587-1507.
- What is Christina Wu's phone number?
- The practice phone number listed in the NPPES registry for Christina Wu is (510) 454-1000.
- Does Christina Wu accept Medicare?
- Christina Wu is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Christina Wu's NPI active?
- Yes — Christina Wu's NPI (1790837920) is active in the NPPES registry as of the last update on 2021-12-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.