Randal Reginald Williams
Contractor · Fountain Valley, CA
Randal Reginald Williams is a contractor with a practice address in Fountain Valley, California, and NPI 1003334152, issued on Sep 8, 2017. Check the license (California 131190, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Randal Reginald Williams
- Primary taxonomy
- Contractor 171W00000X
- License number
- 131190 CA
Self-reported in NPPES; status is on the state search - Practice location
- 17264 Euclid St Apt H, Fountain Valley, CA 92708
- Phone
- (949) 300-6415
- Enumerated
- Sep 8, 2017
- Record last updated
- Mar 5, 2026
- Entity
- Type 1 · individual
8 nearest contractor records → All 457 in California → Look up another NPI →
Verify Randal Reginald Williams in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 131190Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
95% fewer Medicare Part D claims than the average contractor in 2024
24 Medicare Part D claims, against an average of 483 among the 15 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Pioglitazone Hcl11 claims
- Rosuvastatin Calcium11 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Randal Reginald Williams among 457 contractor records in California
Randal Reginald Williams is one of 457 contractor records with a practice address in California. 2% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 69% of them.
- NPI issued2017 · 69% of these records are older, 26% newer
- In a Medicare fileYes · 2% of these records are
- In the CMS Doctors and Clinicians fileNo · 1% of these records are
- Record last updated2026 · 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 171W00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Contractor providers in California
There are 457 contractor records in California.
All 457 in California → Every provider in Fountain Valley → Contractor nationwide →
The 8 contractor records with the nearest ZIP codes
- Michael SanchezSanta Ana, CA 927031194134015
- Diane Chiri, PTMission Viejo, CA 926921578760583
- Manijeh EsteghlalianMission Viejo, CA 926921134484496
- Geity ParmachMission Viejo, CA 926911184048779
- Renee Suss, M.A.T., BCBAHuntington Beach, CA 926491346445533
- Kimberly Baerresen, PH.D.Huntington Beach, CA 926481437609930
- Loretta ChristyHuntington Beach, CA 926481891836532
- Jennifer KleinHuntington Beach, CA 926481407025554
Common questions
What is Randal Reginald Williams's NPI number?
Randal Reginald Williams's National Provider Identifier (NPI) is 1003334152, issued on Sep 8, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Randal Reginald Williams located?
The NPPES record lists a practice address at 17264 Euclid St Apt H, Fountain Valley, CA, 92708. Phone: (949) 300-6415. Providers update this record themselves, so call before visiting.
How can I verify Randal Reginald Williams's license?
NPPES lists California license number 131190, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Randal Reginald Williams prescribe under Medicare Part D?
In 2024, Randal Reginald Williams had 24 Medicare Part D claims; the average among contractor prescribers was 483. Part D covers Medicare prescriptions 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. Medicare files from data.cms.gov. 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.