William Lyle Demoss, DC
Chiropractor · Newport Beach, CA
William Lyle Demoss, DC is a chiropractor with a practice address in Newport Beach, California, and NPI 1184798662, issued on Nov 17, 2006. Check the license (California DC17462, as entered in NPPES) with the California board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- William Lyle Demoss
- Credential
- DC
- Primary taxonomy
- Chiropractor 111N00000X
- License number
- DC17462 CA
Self-reported in NPPES; status is on the state search - Practice location
- 20321 SW Birch St, Newport Beach, CA 92660
- Phone
- (949) 250-0600
- Enumerated
- Nov 17, 2006
- Record last updated
- Nov 9, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (949) 250-1442
- Medicare enrollment
- Enrolled (PECOS I20120327000106); accepts Medicare assignment
- Entity
- Type 1 · individual
Also registered at 20321 SW Birch St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Joseph Demoss, D.C.Chiropractor1952527301
Verify William Lyle Demoss in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license DC17462Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
103 chiropractor records list a practice address in Newport Beach
They are 103 of the 4,414 NPPES records with a practice address in Newport Beach, and 11,498 chiropractor records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 103 in Newport Beach → All 11,498 in California → Every provider in Newport Beach →
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- Marianne Abate-Beavers, DCRocklin, CA1124139431
- Dilojan Abayaratna, D.C.Los Angeles, CA1659312957
- Jordan Abbass, DCLong Beach, CA1275106528
- David Abblett, DCNapa, CA1275529398
- Bridget Abbott, DCDanville, CA1790508547
- Nicholas Abboud, DCMoreno Valley, CA1851134365
Common questions
What is William Lyle Demoss, DC's NPI number?
William Lyle Demoss, DC's National Provider Identifier (NPI) is 1184798662, issued on Nov 17, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William Lyle Demoss, DC located?
The NPPES record lists a practice address at 20321 SW Birch St, Newport Beach, CA, 92660. Phone: (949) 250-0600. Providers update this record themselves, so call before visiting.
How can I verify William Lyle Demoss, DC's license?
NPPES lists California license number DC17462, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.