Andy Chuu, MD
NPI 1639565286 · Nephrology Physician · Fontana, CA
Enrolled with Medicare as Practitioner - Nephrology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Andy Chuu, MD is a Nephrology Physician provider in Fontana, CA (NPI 1639565286).
Provider details
- NPI number
- 1639565286
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A193223 (CA)
Specialties & taxonomies
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
11 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 · 9 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Losartan Potassium | 34 | 23 |
| Amlodipine Besylate | 33 | 17 |
| Potassium Chloride | 25 | 14 |
| Empagliflozinbrand: Jardiance | 21 | — |
| Furosemide | 19 | — |
| Lisinopril | 19 | 12 |
| Chlorthalidone | 14 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2015-04-10
- Last updated
- 2024-10-25
- Certified
- 2024-10-14
Frequently asked questions
- What is Andy Chuu's NPI number?
- Andy Chuu's National Provider Identifier (NPI) is 1639565286, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Andy Chuu's specialty?
- Andy Chuu is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is Andy Chuu located?
- Andy Chuu's practice location on file with NPPES is 9961 Sierra Ave, Fontana, CA 92335-6720.
- What is Andy Chuu's phone number?
- The practice phone number listed in the NPPES registry for Andy Chuu is (888) 750-0036.
- Does Andy Chuu accept Medicare?
- Andy Chuu is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Andy Chuu's NPI active?
- Yes — Andy Chuu's NPI (1639565286) is active in the NPPES registry as of the last update on 2024-10-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.