Jeff Mosier, ASW, PPSC
Specialty details in registry · Castro Valley, CA
At a glance
4400 Alma Ave, Castro Valley, CA 94546-3104
NPPES record updated Mar 28, 2024. Public records can lag behind changes at a practice.
Before you call: a quick checklist
- Are you accepting new patients?
- Do you accept my specific insurance plan?
- Do you provide the service I need at this address?
- Do I need a referral, and what is the earliest appointment?
Insurance participation and appointment availability are not established by these public records.
Medicare & insurance
Insurance participation is not established by these public records. Ask the practice and your insurer about your specific plan and this location.
How to check your coverage
Use your plan’s provider directory or the member-services number on your insurance card. Confirm the clinician, practice address, service, and whether a referral is required. A missing opt-out record does not establish Medicare acceptance.
Check the official Medicare directory ↗Practice location
4400 Alma AveCastro Valley, CA 94546-3104
Additional reported practice locations
19722 Center StCastro Valley, CA 945464704
Phone: 5102470665 19400 Santa Maria Ave
Castro Valley, CA 945463400
Phone: 5105375910 19600 Cull Canyon Rd
Castro Valley, CA 945523715
Phone: 5105388833
Education & affiliations
No matching clinician background record in the imported CMS release.
Graduation year does not establish years in practice. A reported affiliation does not establish employment, current admitting privileges, or insurance participation.
Source: CMS National Downloadable File · Published Oct 15, 2026.
Procedures in the public data
Reported activity can help you ask more informed questions about a practice’s services.
No displayed procedure-category record in this release. This does not mean the clinician performs no procedures.
CMS uses a one-year claims window with a reporting lag. Counts cover the Medicare activity included by CMS, not all patients. “1–10” is a published range. Volume is not a quality or outcomes score. Coverage and methodology
Source: CMS Utilization Data · Published Oct 15, 2026.
Service-mix comparison is unavailable for this NPI in the imported Medicare service file.
Industry-reported general payments
No matching general-payment summary in the imported release. This is not a verified zero and does not rule out other payment types or years.
Source: CMS 2025 payments grouped by covered recipient and nature of payments · Published Jun 30, 2026.
Professional details: NPI, taxonomy & registry record
Registry details
- Primary taxonomy
- Specialty details in registry
- Taxonomy code
- 1041S0200X
- Enumeration date
- Mar 28, 2024
- Record updated
- Mar 28, 2024
More registry details
- Provider type
- Individual · Type 1
- Reported credentials
- ASW, PPSC
Reported taxonomies and licenses
1041S0200X · Primary
License reported: ASW97774 CA
License numbers and credentials are reported to NPPES; HCPList does not independently verify them.
Practice location
4400 Alma AveCastro Valley, CA 94546-3104
- Phone
- (510) 766-0016
Mailing address
4400 ALMA AVECASTRO VALLEY, CA 945463104
Information may be outdated or incomplete. Confirm details directly with the practice. HCPList is an independent directory and is not affiliated with CMS.
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