Joyce Chang, M.D.
NPI 1952357600 · Internal Medicine Physician · Alhambra, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Joyce Chang, M.D. is a Internal Medicine Physician provider in Alhambra, CA (NPI 1952357600).
Provider details
- NPI number
- 1952357600
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- A71054 (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
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 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 · 10 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 29 | 27 |
| Losartan Potassium | 27 | 17 |
| Metformin Hcl | 19 | 14 |
| Omeprazole | 18 | 17 |
| Diclofenac Sodium | 16 | 11 |
| Levothyroxine Sodium | 16 | 14 |
| Lisinopril | 15 |
Practice location
Mailing address
Additional practice locations (1)
- 21501 Avalon BlvdSuite 100Carson, CA 90745-2222Phone: (310) 835-6627Fax: (310) 835-6517
Registry dates
- Enumerated
- 2006-05-25
- Last updated
- 2025-12-07
- Certified
- 2025-12-07
Frequently asked questions
- What is Joyce Chang's NPI number?
- Joyce Chang's National Provider Identifier (NPI) is 1952357600, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joyce Chang's specialty?
- Joyce Chang is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Joyce Chang located?
- Joyce Chang's practice location on file with NPPES is 55 S Raymond Ave Ste 200, Alhambra, CA 91801-7103.
- What is Joyce Chang's phone number?
- The practice phone number listed in the NPPES registry for Joyce Chang is (626) 570-8005.
- Does Joyce Chang accept Medicare?
- Joyce Chang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Joyce Chang's NPI active?
- Yes — Joyce Chang's NPI (1952357600) is active in the NPPES registry as of the last update on 2025-12-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.