Stephanie Chang, MD
NPI 1336427590 · Diagnostic Radiology Physician · Stanford, CA
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Stephanie Chang, MD is a Diagnostic Radiology Physician provider in Stanford, CA (NPI 1336427590).
Provider details
- NPI number
- 1336427590
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 2011013277 (MO)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
14 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$31 across 1 record (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
- 2011-07-21
- Last updated
- 2024-04-05
- Certified
- 2024-04-05
Frequently asked questions
- What is Stephanie Chang's NPI number?
- Stephanie Chang's National Provider Identifier (NPI) is 1336427590, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stephanie Chang's specialty?
- Stephanie Chang is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Stephanie Chang located?
- Stephanie Chang's practice location on file with NPPES is 300 Pasteur Dr, Stanford, CA 94305-2200.
- What is Stephanie Chang's phone number?
- The practice phone number listed in the NPPES registry for Stephanie Chang is (650) 723-4000.
- Does Stephanie Chang accept Medicare?
- Stephanie Chang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Stephanie Chang's NPI active?
- Yes — Stephanie Chang's NPI (1336427590) is active in the NPPES registry as of the last update on 2024-04-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.