Yuan-Fei Chang, M.D.
NPI 1194739128 · Family Medicine Physician · City of Industry, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Yuan-Fei Chang, M.D. is a Family Medicine Physician provider in City of Industry, CA (NPI 1194739128).
Provider details
- NPI number
- 1194739128
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- G73324 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,103 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. 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 .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 595 | $99 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 228 | $140 |
| Administration of Influenza Virus VaccineG0008 | 89 | $35 |
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 | 68 | $62 |
| Annual Wellness Visit; Includes a Personalized Prevention Plan of Service (pps), Initial VisitG0438 | 54 | $177 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 110 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 1,321 | 418 |
| Amlodipine Besylate | 668 | 207 |
| Metformin Hcl | 536 | 160 |
| Losartan Potassium | 475 | 146 |
| Rosuvastatin Calcium | 411 | 146 |
| Alendronate Sodium | 376 | 108 |
| Omeprazole |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$717 across 31 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-27
- Last updated
- 2023-12-14
- Certified
- 2023-12-14
Frequently asked questions
- What is Yuan-Fei Chang's NPI number?
- Yuan-Fei Chang's National Provider Identifier (NPI) is 1194739128, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Yuan-Fei Chang's specialty?
- Yuan-Fei Chang is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Yuan-Fei Chang located?
- Yuan-Fei Chang's practice location on file with NPPES is 18575 Gale Ave Ste 128, City of Industry, CA 91748-1382.
- What is Yuan-Fei Chang's phone number?
- The practice phone number listed in the NPPES registry for Yuan-Fei Chang is (626) 912-5335.
- Does Yuan-Fei Chang accept Medicare?
- Yuan-Fei Chang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Yuan-Fei Chang's NPI active?
- Yes — Yuan-Fei Chang's NPI (1194739128) is active in the NPPES registry as of the last update on 2023-12-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.