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

Dr. William Joseph Blaha, MD

Individual provider Neurology Physician · NPI 1801859095

Dr. William Joseph Blaha, MD is a Neurology Physician in Grass Valley, California. Licensed in California. Registered with an NPI since 2006.

Licensed in
CA
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

152 Catherine Ln Ste F
Grass Valley, CA 95945-5756
Phone: (530) 272-2858
Fax: (530) 272-1832
Show map & directions

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

Specialties & licences

Neurology Physician (primary) Taxonomy 2084N0400X · Licence G49578 (CA)

Record details

NPI number1801859095
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 9, 2006
Last updated in NPPESJuly 13, 2026

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