Andrew Chu, M.D.
NPI 1861816639 · Critical Care Medicine (Internal Medicine) Physician · Walnut Creek, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Andrew Chu, M.D. is a Critical Care Medicine (Internal Medicine) Physician provider in Walnut Creek, CA (NPI 1861816639).
Provider details
- NPI number
- 1861816639
- Entity type
- Individual
- Primary specialty
- Critical Care Medicine (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 304680 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
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 tenure38% of score
12 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
3 documented practice locations
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 · 16 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisone | 70 | 35 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 45 | 26 |
| Fluticasone Propion/Salmeterolbrand: Wixela Inhub | 35 | 19 |
| Montelukast Sodium | 32 | 14 |
| Tiotropium Br/Olodaterol Hclbrand: Stiolto Respimat | 26 | — |
| Tiotropium Bromidebrand: Spiriva Respimat | 24 | — |
Practice location
Mailing address
Additional practice locations (2)
- 11104 Parkview Circle Dr Ste 410Fort Wayne, IN 46845-0025Phone: (260) 266-7856
- 90 Presidential Plz Fl 2Syracuse, NY 13202-2240Phone: (315) 464-3835
Registry dates
- Enumerated
- 2014-02-13
- Last updated
- 2023-09-11
- Certified
- 2023-09-11
Frequently asked questions
- What is Andrew Chu's NPI number?
- Andrew Chu's National Provider Identifier (NPI) is 1861816639, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Andrew Chu's specialty?
- Andrew Chu is listed in the NPPES registry with a primary specialty of Critical Care Medicine (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Andrew Chu located?
- Andrew Chu's practice location on file with NPPES is 1425 S Main St, Walnut Creek, CA 94596-5318.
- What is Andrew Chu's phone number?
- The practice phone number listed in the NPPES registry for Andrew Chu is (925) 295-4000.
- Does Andrew Chu accept Medicare?
- Andrew Chu is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Andrew Chu's NPI active?
- Yes — Andrew Chu's NPI (1861816639) is active in the NPPES registry as of the last update on 2023-09-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.