Preston Johnson
Pharmacist · Winchester, CA
Preston Johnson is a pharmacist with a practice address in Winchester, California, and NPI 1861865487, issued on Nov 4, 2015. Check the license (California 63286, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Preston Johnson
- Primary taxonomy
- Pharmacist 183500000X
- License number
- 63286 CA
Self-reported in NPPES; status is on the state search - Practice location
- 30736 Benton RD, Winchester, CA 92596
- Phone
- (951) 926-1223
- Enumerated
- Nov 4, 2015
- Record last updated
- Nov 4, 2015 (not updated in 11 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest pharmacist records → All 32,533 in California → Look up another NPI →
Also registered at 30736 Benton RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Satish BaldhaPharmacist1265071948
- Morgan BarronPharmacist1376917989
- David Estaphnous, PHARMDPharmacist1225635048
- Christie Fanous, PHARMDPharmacist1407564313
- Chloe Nguyen, PHARMDPharmacist1144850355
Verify Preston Johnson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 63286Check 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, 95% of the cost of the top drugs
139 Medicare Part D claims for 123 beneficiaries, against an average of 119 among the 28,524 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.
- Arexvy55 claims
- Shingrix55 claims
- Boostrix Tdap20 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.
Preston Johnson among 32,533 pharmacist records in California
Preston Johnson is one of 32,533 pharmacist records with a practice address in California. 15% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 41% of them.
- NPI issued2015 · 41% of these records are older, 53% newer
- In a Medicare fileYes · 15% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2015 · 76% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 183500000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
9 pharmacist records list a practice address in Winchester
They are 9 of the 209 NPPES records with a practice address in Winchester, and 32,533 pharmacist records in California.
All 32,533 in California → Every provider in Winchester → Pharmacist nationwide →
The 8 pharmacist records with the nearest ZIP codes
- Satish BaldhaWinchester, CA 925961265071948
- Morgan BarronWinchester, CA 925961376917989
- David Estaphnous, PHARMDWinchester, CA 925961225635048
- Christie Fanous, PHARMDWinchester, CA 925961407564313
- Karolina Kapustova, PHARMDWinchester, CA 925961699593087
- Supannee Lertpaichaiyon, PHARMDWinchester, CA 925961194351023
- Chloe Nguyen, PHARMDWinchester, CA 925961144850355
- Ildiko VenczelWinchester, CA 925961720376171
Common questions
What is Preston Johnson's NPI number?
Preston Johnson's National Provider Identifier (NPI) is 1861865487, issued on Nov 4, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Preston Johnson located?
The NPPES record lists a practice address at 30736 Benton RD, Winchester, CA, 92596. Phone: (951) 926-1223. Providers update this record themselves, so call before visiting.
How can I verify Preston Johnson's license?
NPPES lists California license number 63286, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Preston Johnson prescribe under Medicare Part D?
In 2024, Preston Johnson had 139 Medicare Part D claims for 123 beneficiaries; the average among pharmacist prescribers was 119. 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.