IndividualActive
Judy Chang
NPI 1265574388 · Neurology Physician · Oakland, CA
Judy Chang is a Neurology Physician provider in Oakland, CA (NPI 1265574388).
Provider details
- NPI number
- 1265574388
- Entity type
- Individual
- Primary specialty
- Neurology PhysicianAllopathic & Osteopathic Physicians
- Sex
- Female
- Sole proprietor
- No
- License
- A70198 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(90/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 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.
Practice location
818 Webster St
Oakland
Oakland, CA 94607-4220
Phone: (510) 986-6800
Street-level locationGet directions
Mailing address
Id#2848, P.o. Box 1318
Sacramento, CA 95812
Registry dates
- Enumerated
- 2007-02-13
- Last updated
- 2009-01-14
Frequently asked questions
- What is Judy Chang's NPI number?
- Judy Chang's National Provider Identifier (NPI) is 1265574388, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Judy Chang's specialty?
- Judy Chang is listed in the NPPES registry with a primary specialty of Neurology Physician (Allopathic & Osteopathic Physicians).
- Where is Judy Chang located?
- Judy Chang's practice location on file with NPPES is 818 Webster St, Oakland, CA 94607-4220.
- What is Judy Chang's phone number?
- The practice phone number listed in the NPPES registry for Judy Chang is (510) 986-6800.
- Is Judy Chang's NPI active?
- Yes — Judy Chang's NPI (1265574388) is active in the NPPES registry as of the last update on 2009-01-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.