Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Ion, LLC

Organization Electrodiagnostic Medicine Physician · NPI 1003166372

Ion, LLC is an Electrodiagnostic Medicine Physician in Walnut Creek, California. Registered with an NPI since 2012.

In the registry since
2012
What do these letters mean?
LLC — Limited liability company
A form of business registration, not a clinical qualification.

See every abbreviation used in this directory →

Practice location Address checks out

951 Country Ln
Walnut Creek, CA 94596-6143
Phone: (678) 977-6666
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Electrodiagnostic Medicine Physician (primary) Taxonomy 204R00000X

Record details

NPI number1003166372
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Jonathan Block — Owner · (678) 977-6666
NPI enumeratedSeptember 14, 2012
Last updated in NPPESSeptember 14, 2012
Mailing address951 Country Lane, Walnut Creek, CA 94596-6143