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

Dr. Gregory John Cusack, DC

Individual provider Chiropractor · NPI 1841361797

Dr. Gregory John Cusack, DC is a Chiropractic in Walnut Creek, California. Graduated from Los Angeles College of Chiropractic in 1978, 48 years ago. Licensed in California.

Years since qualifying
48
Trained at
Los Angeles College of Chiropractic
Licensed in
CA
In the registry since
2006
What do these letters mean?
DC — Doctor of Chiropractic
A licensed chiropractor.

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Practice location Address checks out

2801 Ygnacio Valley Rd Ste B
Walnut Creek, CA 94598
Phone: (925) 945-0555
Fax: (925) 945-1873
Show map & directions

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

Specialties & licences

Chiropractor (primary) Taxonomy 111N00000X · Licence DC12150 (CA)

Record details

NPI number1841361797
Entity typeIndividual (Type 1)
GenderMale
Credentials DC
Sole proprietorNo
NPI enumeratedNovember 13, 2006
Last updated in NPPESJuly 8, 2007
Mailing address2801 Ygnacio Valley Rd, Suite B, Walnut Creek, CA 94598

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCHIROPRACTIC
Medical schoolLOS ANGELES COLLEGE OF CHIROPRACTIC
Graduated 1978 (48 years in practice)
Accepts Medicare assignment Not indicated

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