Yu-Lian Chang, M.D.
NPI 1942495437 · Family Medicine Physician · Santa Clara, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Yu-Lian Chang, M.D. is a Family Medicine Physician provider in Santa Clara, CA (NPI 1942495437).
Provider details
- NPI number
- 1942495437
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- A96403 (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
18 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 · 41 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 251 | 86 |
| Lisinopril | 177 | 56 |
| Losartan Potassium | 113 | 39 |
| Atenolol | 97 | 30 |
| Levothyroxine Sodium | 95 | 25 |
| Amlodipine Besylate | 87 | 33 |
| Simvastatin | 70 | 23 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-09-08
- Last updated
- 2021-12-20
- Certified
- 2021-10-10
Frequently asked questions
- What is Yu-Lian Chang's NPI number?
- Yu-Lian Chang's National Provider Identifier (NPI) is 1942495437, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Yu-Lian Chang's specialty?
- Yu-Lian Chang is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Yu-Lian Chang located?
- Yu-Lian Chang's practice location on file with NPPES is 3466 El Camino Real, Santa Clara, CA 95051-2809.
- What is Yu-Lian Chang's phone number?
- The practice phone number listed in the NPPES registry for Yu-Lian Chang is (408) 554-1400.
- Does Yu-Lian Chang accept Medicare?
- Yu-Lian Chang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Yu-Lian Chang's NPI active?
- Yes — Yu-Lian Chang's NPI (1942495437) is active in the NPPES registry as of the last update on 2021-12-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.