Chang Cornerstone Clinic
NPI 1740682434 · Family Medicine Physician · Sumner, IA
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Chang Cornerstone Clinic is a Family Medicine Physician organization in Sumner, IA (NPI 1740682434).
Provider details
- NPI number
- 1740682434
- Entity type
- Organization
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Janet Jones, President(563) 578-3321
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
12 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
- 2014-09-24
- Last updated
- 2014-09-24
Frequently asked questions
- What is Chang Cornerstone Clinic's NPI number?
- Chang Cornerstone Clinic's National Provider Identifier (NPI) is 1740682434, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Chang Cornerstone Clinic?
- Chang Cornerstone Clinic is classified in the NPPES registry as Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Chang Cornerstone Clinic located?
- Chang Cornerstone Clinic's practice location on file with NPPES is 1004 E 1st St, Sumner, IA 50674-1618.
- What is Chang Cornerstone Clinic's phone number?
- The practice phone number listed in the NPPES registry for Chang Cornerstone Clinic is (563) 578-3321.
- Does Chang Cornerstone Clinic accept Medicare?
- Chang Cornerstone Clinic is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Chang Cornerstone Clinic?
- The authorized official listed on Chang Cornerstone Clinic's NPPES record is Janet Jones, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Chang Cornerstone Clinic's NPI active?
- Yes — Chang Cornerstone Clinic's NPI (1740682434) is active in the NPPES registry as of the last update on 2014-09-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.