NPPES file of Aug 9, 2026

John Sauen Poon, PHARM.D.

Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist · San Leandro, CA

John Sauen Poon, PHARM.D. is a pharmacist clinician (phc)/ clinical pharmacy specialist with a practice address in San Leandro, California, and NPI 1902112030, issued on Aug 26, 2010. Check the license (California 63192, 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
1902112030
Name
John Sauen Poon
Credential
PHARM.D.
Primary taxonomy
Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist 1835P0018X
License number
63192 CA
Self-reported in NPPES; status is on the state search
Practice location
2500 Merced St, San Leandro, CA 94577
Phone
(510) 454-2760
Enumerated
Aug 26, 2010
Record last updated
Dec 17, 2021 (not updated in 5 years: call before relying on the address or phone)
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 2500 Merced St

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

  1. Rabiatu Abdullah, M.D.Emergency Medicine Physician1497833248
  2. Scott Abramson, M.D.Neurology Physician1891873667
  3. Jayaprada Achanta, M.D.Anesthesiology Physician1053463851
  4. Kristi Adachi, PHARMDPharmacist1396456737
  5. Mary Grace Aguayo, CRTCertified Respiratory Therapist1467923730
  6. Jatinder AhluwaliaPharmacist1508391483

Verify John Sauen Poon 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 63192
    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

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91% fewer Medicare Part D claims than the average pharmacist clinician (phc)/ clinical pharmacy specialist in 2024

22 Medicare Part D claims for 12 beneficiaries, against an average of 253 among the 1,614 providers of this specialty who prescribed in Part D.

  1. John Poon22
  2. Specialty average253

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.

John Sauen Poon among 1,593 pharmacist clinician (phc)/ clinical pharmacy specialist records in California

John Sauen Poon, PHARM.D. is one of 1,593 pharmacist clinician (phc)/ clinical pharmacy specialist records with a practice address in California. 17% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 14% of them.

  • NPI issued2010 · 14% of these records are older, 80% newer
  • In a Medicare fileYes · 17% of these records are
  • In the CMS Doctors and Clinicians fileNo · under 1% of these records are
  • Record last updated2021 · 67% 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 California 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 California

There are 1,593 pharmacist clinician (phc)/ clinical pharmacy specialist records in California.

The 8 pharmacist clinician (phc)/ clinical pharmacy specialist records with the nearest ZIP codes

  1. Robert Blackburn, PHARM.D.,M.B.A.San Leandro, CA 945771386610855
  2. Ryan Conrad, PHARMDSan Leandro, CA 945771881941078
  3. Bryanne Myers, RPH, BCPSSan Leandro, CA 945771376112748
  4. Emily Nguyen, PHARMDSan Leandro, CA 945771629853098
  5. Devinder Bal, RPHSan Ramon, CA 945821962774471
  6. Michael Negrete, PHARMDSan Ramon, CA 945821154766319
  7. Jessica Cunningham, PHARMDUnion City, CA 945871336860113
  8. Meewon Keith, PHARM.D.Union City, CA 945871497344485

Common questions

What is John Sauen Poon, PHARM.D.'s NPI number?

John Sauen Poon, PHARM.D.'s National Provider Identifier (NPI) is 1902112030, issued on Aug 26, 2010. An NPI identifies a provider in billing; it is not a license.

Where is John Sauen Poon, PHARM.D. located?

The NPPES record lists a practice address at 2500 Merced St, San Leandro, CA, 94577. Phone: (510) 454-2760. Providers update this record themselves, so call before visiting.

How can I verify John Sauen Poon, PHARM.D.'s license?

NPPES lists California license number 63192, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does John Sauen Poon, PHARM.D. prescribe under Medicare Part D?

In 2024, John Sauen Poon, PHARM.D. had 22 Medicare Part D claims for 12 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.