NPPES file of Aug 9, 2026

Horace Williams, RPH

Pharmacist · Pasadena, CA

Horace Williams, RPH is a pharmacist with a practice address in Pasadena, California, and NPI 1083169015, issued on Aug 19, 2016. Check the license (California 23311, as entered in NPPES) with the California board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

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

NPPES recordNPPES file of Aug 9, 2026
1083169015
Name
Horace Williams
Credential
RPH
Primary taxonomy
Pharmacist 183500000X
License number
23311 CA
Self-reported in NPPES; status is on the state search
Practice location
257 S Fair Oaks Ave, Pasadena, CA 91105
Phone
(626) 449-0099
Enumerated
Aug 19, 2016
Record last updated
Aug 19, 2016 (not updated in 10 years: call before relying on the address or phone)
Fax
(626) 449-7388
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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8 nearest pharmacist records → All 32,533 in California → Look up another NPI →

Also registered at 257 S Fair Oaks Ave

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

  1. Laura Bearden, PHARMDPharmacist1225486434
  2. Maricela Guillermo, PHARM.D.Ambulatory Care Pharmacist1134673809
  3. Edward Lau, DPTPhysical Therapist1750143517
  4. Roberto Vazquez, PHARM.D.Pharmacist1932352804
  5. Jennifer Yamaguchi, PHARMDPharmacist1447706510

Verify Horace Williams 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 23311    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.

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Horace Williams among 32,533 pharmacist records in California

Horace Williams, RPH 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 not. Its NPI, issued in 2016, is newer than 47% of them.

  • NPI issued2016 · 47% of these records are older, 47% newer
  • In a Medicare fileNo · 15% of these records are
  • In the CMS Doctors and Clinicians fileNo · under 1% of these records are
  • Record last updated2016 · 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).

180 pharmacist records list a practice address in Pasadena

They are 180 of the 10,525 NPPES records with a practice address in Pasadena, and 32,533 pharmacist records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 32,533 in California → Every provider in Pasadena → Pharmacist nationwide →

The 8 pharmacist records with the nearest ZIP codes

  1. Laura Bearden, PHARMDPasadena, CA 911051225486434
  2. James Chang, PHARMDPasadena, CA 911051043623358
  3. Jasmine Chen, PHARMD, RPHPasadena, CA 911051346597291
  4. Seong Hong, RPH, PH.D.Pasadena, CA 911051174706410
  5. Clint Hutchings, PHARMDPasadena, CA 911051366722563
  6. Dunia IsmailPasadena, CA 911051245584929
  7. Minah Kim, PHARM. D.Pasadena, CA 911051073744264
  8. Wanda Lewis, PHARM. D.Pasadena, CA 911051922306737

Common questions

What is Horace Williams, RPH's NPI number?

Horace Williams, RPH's National Provider Identifier (NPI) is 1083169015, issued on Aug 19, 2016. An NPI identifies a provider in billing; it is not a license.

Where is Horace Williams, RPH located?

The NPPES record lists a practice address at 257 S Fair Oaks Ave, Pasadena, CA, 91105. Phone: (626) 449-0099. Providers update this record themselves, so call before visiting.

How can I verify Horace Williams, RPH's license?

NPPES lists California license number 23311, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity 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. 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.