William Twain Giddens
Specialist · San Diego, CA
William Twain Giddens is a specialist with a practice address in San Diego, California, and NPI 1124421987, issued on Oct 7, 2014. Check the license with the California board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- William Twain Giddens
- Primary taxonomy
- Specialist 174400000X
- Practice location
- 10717 Camino Ruiz Ste 207, San Diego, CA 92126
- Phone
- (858) 695-2211
- Enumerated
- Oct 7, 2014
- Record last updated
- Jul 27, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (858) 695-3521
- Entity
- Type 1 · individual
8 nearest specialist records → All 5,749 in California → Look up another NPI →
Also registered at 10717 Camino Ruiz Ste 207
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify William Twain Giddens in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
William Twain Giddens among 5,749 specialist records in California
William Twain Giddens is one of 5,749 specialist records with a practice address in California. 30% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2014, is newer than 72% of them.
- NPI issued2014 · 72% of these records are older, 25% newer
- In a Medicare fileNo · 30% of these records are
- In the CMS Doctors and Clinicians fileNo · 19% of these records are
- Record last updated2015 · 77% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 174400000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Specialist providers in California
There are 5,749 specialist records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 5,749 in California → Every provider in San Diego → Specialist nationwide →
The 8 specialist records with the nearest ZIP codes
- Jennie BradachSan Diego, CA 921261649025495
- Julian CortesSan Diego, CA 921261285581629
- Jacqueline MorganSan Diego, CA 921261952765935
- Chris Vinceneux, OTRSan Diego, CA 921261073888012
- Paul Keith, M.D.San Diego, CA 921271134143167
- Lora Norman, OTR/L CHTSan Diego, CA 921271457676603
- Patricia Spacciapolli, PTSan Diego, CA 921271780987107
- Hamid Abedi, HEARING AID SPECIALISan Diego, CA 921281659410744
Common questions
What is William Twain Giddens's NPI number?
William Twain Giddens's National Provider Identifier (NPI) is 1124421987, issued on Oct 7, 2014. An NPI identifies a provider in billing; it is not a license.
Where is William Twain Giddens located?
The NPPES record lists a practice address at 10717 Camino Ruiz Ste 207, San Diego, CA, 92126. Phone: (858) 695-2211. Providers update this record themselves, so call before visiting.
How can I verify William Twain Giddens's license?
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.