Yuchi Chang, M.D.
NPI 1083804439 · Dermatology Physician · Pasadena, CA
Enrolled with Medicare as Practitioner - Dermatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Yuchi Chang, M.D. is a Dermatology Physician provider in Pasadena, CA (NPI 1083804439).
Provider details
- NPI number
- 1083804439
- Entity type
- Individual
- Primary specialty
- Dermatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- A94740 (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
18 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
1,251 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 | 494 | $99 |
| Destruction of Precancer Skin Growth, 2-14 Growths17003 | 211 | $8 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 118 | $120 |
| Destruction of Precancer Skin Growth, 1 Growth17000 | 112 | $64 |
| Biopsy of Related Skin Growth, First Growth11102 | 100 | $109 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 18 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Ketoconazole | 151 | 61 |
| Triamcinolone Acetonide | 93 | 45 |
| Clobetasol Propionate | 77 | 31 |
| Hydrocortisone | 61 | 32 |
| Mometasone Furoate | 50 | 36 |
| Fluocinonide | 42 | 27 |
| Tacrolimus | 38 | — |
| Doxycycline Monohydrate | 34 | 24 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,306 across 44 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
- 2007-07-31
- Last updated
- 2012-11-05
Frequently asked questions
- What is Yuchi Chang's NPI number?
- Yuchi Chang's National Provider Identifier (NPI) is 1083804439, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Yuchi Chang's specialty?
- Yuchi Chang is listed in the NPPES registry with a primary specialty of Dermatology Physician (Allopathic & Osteopathic Physicians).
- Where is Yuchi Chang located?
- Yuchi Chang's practice location on file with NPPES is 401 S. Fair Oaks Ave, Pasadena, CA 91108.
- What is Yuchi Chang's phone number?
- The practice phone number listed in the NPPES registry for Yuchi Chang is (626) 405-7221.
- Does Yuchi Chang accept Medicare?
- Yuchi Chang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Yuchi Chang's NPI active?
- Yes — Yuchi Chang's NPI (1083804439) is active in the NPPES registry as of the last update on 2012-11-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.