John Chiu, M.D.
NPI 1245383884 · Neurological Surgery Physician · Newbury Park, CA
John Chiu, M.D. is a Neurological Surgery Physician provider in Newbury Park, CA (NPI 1245383884).
Provider details
- NPI number
- 1245383884
- Entity type
- Individual
- Primary specialty
- Neurological Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- C31784 (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
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
Mailing address
Registry dates
- Enumerated
- 2007-01-18
- Last updated
- 2008-11-26
Frequently asked questions
- What is John Chiu's NPI number?
- John Chiu's National Provider Identifier (NPI) is 1245383884, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Chiu's specialty?
- John Chiu is listed in the NPPES registry with a primary specialty of Neurological Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is John Chiu located?
- John Chiu's practice location on file with NPPES is 1001 Newbury Rd, Newbury Park, CA 91320-6434.
- What is John Chiu's phone number?
- The practice phone number listed in the NPPES registry for John Chiu is (805) 375-7900.
- Is John Chiu's NPI active?
- Yes — John Chiu's NPI (1245383884) is active in the NPPES registry as of the last update on 2008-11-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.