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Dietitian, Registereds in Castro Valley, CA

Browse 6 Dietitian, Registered providers listed in NPPES with a practice address in Castro Valley, California.

6 Healthcare Providers

How Castro Valley compares with the U.S.

6 active clinicians in Dietitian, Registered list a practice address in Castro Valley, CA in the NPI registry.

With fewer than 10 clinicians, rates per 100,000 residents are not reliable enough to compare.

None of the clinicians in Dietitian, Registered in Castro Valley are listed in the CMS Medicare file.

These figures summarize public federal data. They do not measure quality of care, appointment availability, or whether a clinician accepts your insurance or new patients. Registry addresses can be out of date. Please confirm details directly with the office and your plan. This information is not medical advice.

Prepared by T-MedInfo from NPPES, CMS and U.S. Census Bureau data. Questions or corrections: support@true-medinfo.com ยท Methodology

Sources: Clinician counts and practice addresses: NPPES NPI Registry, Centers for Medicare & Medicaid Services (CMS), data as of August 2026.

Showing 1โ€“6 of 6 providers
With recent CMS data first, then Aโ€“Z

Sophie Baylon , RD

Dietitian, Registered

Active NPI Status
4466 Paradise Knls, Castro Valley, CA 945464722
Phone: 5104327217
NPI Identifier 1376205880
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Kara Courtney Boller , RD

Dietitian, Registered

Active NPI Status
21966 Dolores St, Castro Valley, CA 945466900
Phone: 8057546433
NPI Identifier 1629434436
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Helena Chung , RD, MPH

Dietitian, Registered

Active NPI Status
20103 Lake Chabot Rd, Castro Valley, CA 945465305
Phone: 5107273204
NPI Identifier 1063336394
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Taylor Demasi , RD

Dietitian, Registered

Active NPI Status
7796 Coolidge Ct, Castro Valley, CA 945525245
Phone: 5103058175
NPI Identifier 1396632238
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Nayoung Song , RD

Dietitian, Registered

Active NPI Status
20655 Maria Ct, Castro Valley, CA 945464462
Phone: 4159855933
NPI Identifier 1306707930
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Jiaqi Yang , RD

Dietitian, Registered

Active NPI Status
20101 Lake Chabot Rd, Castro Valley, CA 945465305
Phone: 5108863400
NPI Identifier 1750784567
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Frequently Asked Questions about Dietitian, Registered in Castro Valley

How do I check a Dietitian, Registered practitioner's license?

Each practitioner profile shows the NUCC taxonomy code and any state license number the practitioner reported to NPPES, plus a link to the California licensing board lookup. NPPES entries are self-reported; current license status is published only by the state board.

Why is a practitioner missing from this list?

This list shows NPI records that are active in NPPES. A deactivated NPI keeps its profile with the deactivation date and practice history; find it with the site search by name or NPI number.