Ann Matsumoto
NPI 1144755620 · Clinical Social Worker · Concord, CA
Enrolled with Medicare as Practitioner - Clinical Social Worker · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ann Matsumoto is a Clinical Social Worker provider in Concord, CA (NPI 1144755620).
Provider details
- NPI number
- 1144755620
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- Yes
- License
- 75580 (CA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
9 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
- 2017-04-21
- Last updated
- 2022-01-12
- Certified
- 2022-01-12
Frequently asked questions
- What is Ann Matsumoto's NPI number?
- Ann Matsumoto's National Provider Identifier (NPI) is 1144755620, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ann Matsumoto's specialty?
- Ann Matsumoto is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Ann Matsumoto located?
- Ann Matsumoto's practice location on file with NPPES is 4066 Castlewood Ct, Concord, CA 94518-1826.
- What is Ann Matsumoto's phone number?
- The practice phone number listed in the NPPES registry for Ann Matsumoto is (410) 627-8128.
- Does Ann Matsumoto accept Medicare?
- Ann Matsumoto is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ann Matsumoto's NPI active?
- Yes — Ann Matsumoto's NPI (1144755620) is active in the NPPES registry as of the last update on 2022-01-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.