Jiann E Chang M D a Professional Corporation
NPI 1073889556 · Preferred Provider Organization · Barstow, CA
Jiann E Chang M D a Professional Corporation is a Preferred Provider Organization organization in Barstow, CA (NPI 1073889556).
Provider details
- NPI number
- 1073889556
- Entity type
- Organization
- Primary specialty
- Preferred Provider OrganizationManaged Care Organizations
- Organization subpart
- No
- Authorized official
- Jiann Chang, President(760) 256-3508
- License
- 00A30510 (CA)
Specialties & taxonomies
Managed Care Organizations
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
14 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
- 2012-03-28
- Last updated
- 2012-03-28
Frequently asked questions
- What is Jiann E Chang M D a Professional Corporation's NPI number?
- Jiann E Chang M D a Professional Corporation's National Provider Identifier (NPI) is 1073889556, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Jiann E Chang M D a Professional Corporation?
- Jiann E Chang M D a Professional Corporation is classified in the NPPES registry as Preferred Provider Organization (Managed Care Organizations).
- Where is Jiann E Chang M D a Professional Corporation located?
- Jiann E Chang M D a Professional Corporation's practice location on file with NPPES is 801 E Mountain View St, Barstow, CA 92311-3052.
- What is Jiann E Chang M D a Professional Corporation's phone number?
- The practice phone number listed in the NPPES registry for Jiann E Chang M D a Professional Corporation is (760) 256-3508.
- Who is the authorized official for Jiann E Chang M D a Professional Corporation?
- The authorized official listed on Jiann E Chang M D a Professional Corporation's NPPES record is Jiann Chang, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Jiann E Chang M D a Professional Corporation's NPI active?
- Yes — Jiann E Chang M D a Professional Corporation's NPI (1073889556) is active in the NPPES registry as of the last update on 2012-03-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.