Ione Chan, CNM
NPI 1275035651 · Midwife · Concord, CA
Enrolled with Medicare as Order and Referring Only - Certified Nurse Midwife (cnm) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ione Chan, CNM is a Midwife provider in Concord, CA (NPI 1275035651).
Provider details
- NPI number
- 1275035651
- Entity type
- Individual
- Primary specialty
- MidwifeOther Service Providers
- Credential
- CNM
- Sex
- Female
- Sole proprietor
- No
- License
- 235946 (CA)
Specialties & taxonomies
Other Service Providers
Nursing Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
8 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
- 2018-03-01
- Last updated
- 2023-01-12
- Certified
- 2022-02-01
Frequently asked questions
- What is Ione Chan's NPI number?
- Ione Chan's National Provider Identifier (NPI) is 1275035651, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ione Chan's specialty?
- Ione Chan is listed in the NPPES registry with a primary specialty of Midwife (Other Service Providers).
- Where is Ione Chan located?
- Ione Chan's practice location on file with NPPES is 2185 Pacheco St, Concord, CA 94520-2309.
- What is Ione Chan's phone number?
- The practice phone number listed in the NPPES registry for Ione Chan is (925) 676-0300.
- Does Ione Chan accept Medicare?
- Ione Chan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ione Chan's NPI active?
- Yes — Ione Chan's NPI (1275035651) is active in the NPPES registry as of the last update on 2023-01-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.