David Justin Williams
Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist · Gilbert, AZ
David Justin Williams is a pharmacist clinician (phc)/ clinical pharmacy specialist with a practice address in Gilbert, Arizona, and NPI 1891284931, issued on May 3, 2018. Check the license with the Arizona board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- David Justin Williams
- Primary taxonomy
- Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist 1835P0018X
- License number
- 19637 NV
Self-reported in NPPES; status is on the state search - Practice location
- 1415 N Arizona Ave, Gilbert, AZ 85233
- Phone
- (480) 293-0052
- Enumerated
- May 3, 2018
- Record last updated
- Jun 2, 2025
- Entity
- Type 1 · individual
8 nearest pharmacist clinician (phc)/ clinical pharmacy specialist records → All 427 in Arizona → Look up another NPI →
Also registered at 1415 N Arizona Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Mariam AwadPharmacist1043611445
- Thomas Farmer, RPH.Pharmacist1164857934
- Phillip Johnson, R.PH.Pharmacist1083964761
- Daniel Kowalenko, PHARMDPharmacist1750927687
- Mark Lavigne, PHARMDPharmacist1952700882
- Nina Le, PHARM.D.Pharmacist1932444817
Verify David Justin Williams in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Arizona 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
Most of these Medicare Part D claims are vaccines, 100% of the cost of the top drugs
66 Medicare Part D claims for 53 beneficiaries, against an average of 253 among the 1,614 providers of this specialty who prescribed in Part D. Brand-name drugs were 100% of claims.
Most prescribed
Pharmacies often give vaccines under a standing order that names one clinician, and CMS counts every such claim under that clinician's NPI. These claims are therefore not a measure of this clinician's own prescribing.
- Arexvy22 claims
- Shingrix22 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.
David Justin Williams among 427 pharmacist clinician (phc)/ clinical pharmacy specialist records in Arizona
David Justin Williams is one of 427 pharmacist clinician (phc)/ clinical pharmacy specialist records with a practice address in Arizona. 38% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 60% of them.
- NPI issued2018 · 60% of these records are older, 34% newer
- In a Medicare fileYes · 38% of these records are
- In the CMS Doctors and Clinicians fileNo · 0% of these records are
- Record last updated2025 · 43% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1835P0018X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist providers in Arizona
There are 427 pharmacist clinician (phc)/ clinical pharmacy specialist records in Arizona.
All 427 in Arizona → Every provider in Gilbert → Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist nationwide →
The 8 pharmacist clinician (phc)/ clinical pharmacy specialist records with the nearest ZIP codes
- Breanna Baca, PHARM DGilbert, AZ 852331578321451
- Robyn RedusGilbert, AZ 852331184929754
- Oanh TruongGilbert, AZ 852331003579848
- Tara Zwisler, PHARMDGilbert, AZ 852331750630505
- Michael Abbruscato, RPHGilbert, AZ 852341174859078
- Bret Blanchard, PHARM DGilbert, AZ 852341497080337
- William CarbonneauGilbert, AZ 852341144820705
- Patrick Raidy, PHARM.D.Gilbert, AZ 852341750759536
Common questions
What is David Justin Williams's NPI number?
David Justin Williams's National Provider Identifier (NPI) is 1891284931, issued on May 3, 2018. An NPI identifies a provider in billing; it is not a license.
Where is David Justin Williams located?
The NPPES record lists a practice address at 1415 N Arizona Ave, Gilbert, AZ, 85233. Phone: (480) 293-0052. Providers update this record themselves, so call before visiting.
How can I verify David Justin Williams's license?
Search the Arizona board that licenses this profession; the NPPES record confirms identity only.
How much does David Justin Williams prescribe under Medicare Part D?
In 2024, David Justin Williams had 66 Medicare Part D claims for 53 beneficiaries; the average among pharmacist clinician (phc)/ clinical pharmacy specialist prescribers was 253. 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.