NPPES file of Aug 9, 2026

Aaron D. Ross

Pharmacist · Winterhaven, CA

Aaron D. Ross is a pharmacist with a practice address in Winterhaven, California, and NPI 1639403371, issued on Sep 29, 2009. Check the license with the California board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1639403371
Name
Aaron D. Ross
Primary taxonomy
Pharmacist 183500000X
License number
14481 OK
Self-reported in NPPES; status is on the state search
Practice location
One Indian Hill RD, Winterhaven, CA 92283
Phone
(760) 572-4120
Enumerated
Sep 29, 2009
Record last updated
Sep 29, 2009 (not updated in 17 years: call before relying on the address or phone)
Fax
(760) 572-2133
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at One Indian Hill RD

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Byran Allen, RNRegistered Nurse1215453568
  2. Beth CleavengerPharmacist1801142591
  3. Deborah DrumelRegistered Dietitian1588604284
  4. Jo Foley, RNRegistered Nurse1881911568
  5. Rebecca Leach, RNRegistered Nurse1053642546
  6. Corbin Lebeau, RNRegistered Nurse1649590639

Verify Aaron D. Ross in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this professionCheck the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Most of these Medicare Part D claims are vaccines, 100% of the cost of the top drugs

17 Medicare Part D claims for 11 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.

  1. Aaron Ross17
  2. Specialty average119

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.

  1. Shingrix14 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.

Aaron D. Ross among 32,533 pharmacist records in California

Aaron D. Ross 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 2009, is newer than 11% of them.

  • NPI issued2009 · 11% of these records are older, 88% 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 updated2009 · 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).

14 pharmacist records list a practice address in Winterhaven

They are 14 of the 90 NPPES records with a practice address in Winterhaven, and 32,533 pharmacist records in California.

The 8 pharmacist records with the nearest ZIP codes

  1. Thomas BoroughsWinterhaven, CA 922831467404996
  2. James Carter, R.PH.Winterhaven, CA 922831528277662
  3. Kathleen Chan, PHARMDWinterhaven, CA 922831003124041
  4. Beth CleavengerWinterhaven, CA 922831801142591
  5. Nancy EdwardsWinterhaven, CA 922831518919422
  6. Curan GandhiWinterhaven, CA 922831023780863
  7. Terri Hamilton, PHARM.D.Winterhaven, CA 922831578837902
  8. Deborah LaiWinterhaven, CA 922831427655992

Common questions

What is Aaron D. Ross's NPI number?

Aaron D. Ross's National Provider Identifier (NPI) is 1639403371, issued on Sep 29, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Aaron D. Ross located?

The NPPES record lists a practice address at One Indian Hill RD, Winterhaven, CA, 92283. Phone: (760) 572-4120. Providers update this record themselves, so call before visiting.

How can I verify Aaron D. Ross's license?

Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Aaron D. Ross prescribe under Medicare Part D?

In 2024, Aaron D. Ross had 17 Medicare Part D claims for 11 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.