Wanda Chang, M.D.
NPI 1336396373 · Physical Medicine & Rehabilitation Physician · Irvine, CA
Enrolled with Medicare as Practitioner - Physical Medicine and Rehabilitation · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Wanda Chang, M.D. is a Physical Medicine & Rehabilitation Physician provider in Irvine, CA (NPI 1336396373).
Provider details
- NPI number
- 1336396373
- Entity type
- Individual
- Primary specialty
- Physical Medicine & Rehabilitation PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- A105274 (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
17 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 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Gabapentin | 88 | 46 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 74 | 30 |
| Pregabalin | 62 | 18 |
| Oxycodone Hcl/Acetaminophenbrand: Oxycodone-Acetaminophen | 42 | 12 |
| Tramadol Hcl | 21 | — |
| Prednisone | 18 | 16 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-08-21
- Last updated
- 2021-12-02
Frequently asked questions
- What is Wanda Chang's NPI number?
- Wanda Chang's National Provider Identifier (NPI) is 1336396373, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Wanda Chang's specialty?
- Wanda Chang is listed in the NPPES registry with a primary specialty of Physical Medicine & Rehabilitation Physician (Allopathic & Osteopathic Physicians).
- Where is Wanda Chang located?
- Wanda Chang's practice location on file with NPPES is 6670 Alton Pkwy, Irvine, CA 92618-3734.
- What is Wanda Chang's phone number?
- The practice phone number listed in the NPPES registry for Wanda Chang is (949) 932-5398.
- Does Wanda Chang accept Medicare?
- Wanda Chang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Wanda Chang's NPI active?
- Yes — Wanda Chang's NPI (1336396373) is active in the NPPES registry as of the last update on 2021-12-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.