NPPES file of Aug 9, 2026

John Sup Hyun, PHARM. D.

Pharmacotherapy Pharmacist · Riverside, CA

John Sup Hyun, PHARM. D. is a pharmacotherapy pharmacist with a practice address in Riverside, California, and NPI 1265506943, issued on Nov 17, 2006. Check the license (California 41888, as entered in NPPES) 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
1265506943
Name
John Sup Hyun
Credential
PHARM. D.
Primary taxonomy
Pharmacotherapy Pharmacist 1835P1200X
License number
41888 CA
Self-reported in NPPES; status is on the state search
Practice location
10800 Magnolia Ave, Riverside, CA 92505
Phone
(951) 353-4059
Enumerated
Nov 17, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(951) 353-5772
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.
Download card Updates feed

Also registered at 10800 Magnolia Ave

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

  1. Joseph Abapo, MDPediatrics Physician1841348786
  2. Hussein Abdulrassoul, MDOrthopaedic Surgery Physician1972123891
  3. Kimberly Adams, PA-CMedical Physician Assistant1053522870
  4. Alfredo Aguiar, PAPhysician Assistant1043368970
  5. Michael Aguinaldo, M.D.Pediatrics Physician1851531487
  6. Maria Aguirre, MDPediatrics Physician1295806255

Verify John Sup Hyun in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license 41888    Check 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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

57% more Medicare Part D claims than the average pharmacotherapy pharmacist in 2024

621 Medicare Part D claims for 185 beneficiaries, against an average of 395 among the 208 providers of this specialty who prescribed in Part D. Brand-name drugs were 62% of claims.

  1. John Hyun621
  2. Specialty average395

Most prescribed

  1. Procrit382 claims
  2. Veo Insulin Syringe183 claims
  3. Alcohol Prep Pads16 claims
  4. Alcohol Swab12 claims
  5. Single Use Swab11 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.

Pharmacotherapy Pharmacist providers in California

There are 605 pharmacotherapy pharmacist records in California.

All 605 in California → Every provider in Riverside →

Other pharmacotherapy pharmacist records in California

  1. Danny Abifadel, PHARM.D.Chico, CA1427245455
  2. Nidhu Abraham, PHARM.D., BCPSPalo Alto, CA1023543717
  3. Wayne Adams, PHARMD.Pasadena, CA1215760178
  4. Edwin Adlam, PHARMD, CGPSanta Barbara, CA1225026305
  5. Dele Akao, PHARM.D., BCPSValencia, CA1013127588
  6. Barbara Albrecht, PHARM. D.Los Angeles, CA1811083876
  7. Victoria Aldridge, PHARM.D.San Diego, CA1245247733
  8. Chris AmadiSacramento, CA1902655129
  9. Cheryl Amin, PHARMDSan Francisco, CA1780748715
  10. Allen AmirantNorth Hills, CA1639273659

Common questions

What is John Sup Hyun, PHARM. D.'s NPI number?

John Sup Hyun, PHARM. D.'s National Provider Identifier (NPI) is 1265506943, issued on Nov 17, 2006. An NPI identifies a provider in billing; it is not a license.

Where is John Sup Hyun, PHARM. D. located?

The NPPES record lists a practice address at 10800 Magnolia Ave, Riverside, CA, 92505. Phone: (951) 353-4059. Providers update this record themselves, so call before visiting.

How can I verify John Sup Hyun, PHARM. D.'s license?

NPPES lists California license number 41888, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does John Sup Hyun, PHARM. D. prescribe under Medicare Part D?

In 2024, John Sup Hyun, PHARM. D. had 621 Medicare Part D claims for 185 beneficiaries; the average among pharmacotherapy pharmacist prescribers was 395. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.