Robert Chang, M.D.
NPI 1992894885 · Nephrology Physician · Corona, CA
Enrolled with Medicare as Practitioner - Nephrology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Robert Chang, M.D. is a Nephrology Physician provider in Corona, CA (NPI 1992894885).
Provider details
- NPI number
- 1992894885
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A85088 (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 · 30 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Sevelamer Carbonate | 134 | 74 |
| Atorvastatin Calcium | 109 | 52 |
| Furosemide | 102 | 51 |
| Amlodipine Besylate | 96 | 46 |
| Losartan Potassium | 94 | 37 |
| Empagliflozinbrand: Jardiance | 91 | 37 |
| Sodium Polystyrene Sulfonate | 83 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-10-11
- Last updated
- 2021-11-29
Frequently asked questions
- What is Robert Chang's NPI number?
- Robert Chang's National Provider Identifier (NPI) is 1992894885, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Robert Chang's specialty?
- Robert Chang is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is Robert Chang located?
- Robert Chang's practice location on file with NPPES is 2057 Compton Ave, Corona, CA 92881-7287.
- What is Robert Chang's phone number?
- The practice phone number listed in the NPPES registry for Robert Chang is (951) 736-6757.
- Does Robert Chang accept Medicare?
- Robert Chang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Robert Chang's NPI active?
- Yes — Robert Chang's NPI (1992894885) is active in the NPPES registry as of the last update on 2021-11-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.