Joanna Chin, MD
NPI 1558628016 · Pediatrics Physician · Martinez, CA
Enrolled with Medicare as Order and Referring Only - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Joanna Chin, MD is a Pediatrics Physician provider in Martinez, CA (NPI 1558628016).
Provider details
- NPI number
- 1558628016
- Entity type
- Individual
- Primary specialty
- Pediatrics PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- A116379 (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
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
- 2012-04-20
- Last updated
- 2013-10-14
Frequently asked questions
- What is Joanna Chin's NPI number?
- Joanna Chin's National Provider Identifier (NPI) is 1558628016, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joanna Chin's specialty?
- Joanna Chin is listed in the NPPES registry with a primary specialty of Pediatrics Physician (Allopathic & Osteopathic Physicians).
- Where is Joanna Chin located?
- Joanna Chin's practice location on file with NPPES is 2500 Alhambra Ave, Martinez, CA 94553-3156.
- What is Joanna Chin's phone number?
- The practice phone number listed in the NPPES registry for Joanna Chin is (925) 370-5200.
- Does Joanna Chin accept Medicare?
- Joanna Chin is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Joanna Chin's NPI active?
- Yes — Joanna Chin's NPI (1558628016) is active in the NPPES registry as of the last update on 2013-10-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.