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

Mr. William Lyle Demoss, DC

Individual provider Chiropractor · NPI 1184798662

Mr. William Lyle Demoss, DC is a Chiropractic in Newport Beach, California. Qualified in 1985, 41 years ago. Accepts Medicare assignment. Licensed in California.

Years since qualifying
41
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

20321 SW Birch St Ste 100
Newport Beach, CA 92660-1756
Phone: (949) 250-0600
Fax: (949) 250-1442
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Chiropractor (primary) Taxonomy 111N00000X · Licence DC17462 (CA)

Record details

NPI number1184798662
Entity typeIndividual (Type 1)
GenderMale
Credentials DC
Sole proprietorNo
NPI enumeratedNovember 17, 2006
Last updated in NPPESNovember 9, 2011

Medicare enrollment

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

Medicare specialtyCHIROPRACTIC
Medical schoolOTHER
Graduated 1985 (41 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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