NPPES file of Aug 9, 2026

Mark William Pregenzer, PHARM.D.

Pharmacist · Los Angeles, CA

Mark William Pregenzer, PHARM.D. is a pharmacist with a practice address in Los Angeles, California, and NPI 1851660690, issued on Dec 23, 2011. Check the license (California RPH 59690, 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
1851660690
Name
Mark William Pregenzer
Credential
PHARM.D.
Primary taxonomy
Pharmacist 183500000X
License number
RPH 59690 CA
Self-reported in NPPES; status is on the state search
Practice location
757 Westwood Plz, Los Angeles, CA 90095
Phone
(310) 267-8522
Enumerated
Dec 23, 2011
Record last updated
Dec 23, 2011 (not updated in 15 years: call before relying on the address or phone)
Fax
(310) 267-3652
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 757 Westwood Plz

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

  1. Gihad AbdelhadyStudent in an Organized Health Care Education/Training Program1528760956
  2. Mohamed Abdelrahim, MDStudent in an Organized Health Care Education/Training Program1699577684
  3. Ridwa AbdiStudent in an Organized Health Care Education/Training Program1093195208
  4. Fatemeh Abdollahi Mofakham, MDDiagnostic Radiology Physician1659652915
  5. Sebiha AbdullahiStudent in an Organized Health Care Education/Training Program1457938235
  6. Tatiana AbdulnourStudent in an Organized Health Care Education/Training Program1700724648

Verify Mark William Pregenzer 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 RPH 59690    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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Mark William Pregenzer among 32,533 pharmacist records in California

Mark William Pregenzer, PHARM.D. 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 2011, is newer than 18% of them.

  • NPI issued2011 · 18% of these records are older, 72% 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 updated2011 · 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).

1,765 pharmacist records list a practice address in Los Angeles

They are 1,765 of the 69,537 NPPES records with a practice address in Los Angeles, 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 Los Angeles → Pharmacist nationwide →

The 8 pharmacist records with the nearest ZIP codes

  1. Ghada AshkarLos Angeles, CA 900951467991463
  2. Grace Chee, PHARM.D.Los Angeles, CA 900951437338860
  3. Virginia Draeger, PHARMDLos Angeles, CA 900951154709681
  4. Sohail Khodabakhshi, PHARM.D.Los Angeles, CA 900951629423348
  5. Nolan NguyenLos Angeles, CA 900951609356328
  6. Kimberly Shakur, PHARMDLos Angeles, CA 900951710432174
  7. Robert Small, REGISTERED PHARMACISLos Angeles, CA 900951083973127
  8. Tsuki Sugiyama, PHARM D.Los Angeles, CA 900951053590307

Common questions

What is Mark William Pregenzer, PHARM.D.'s NPI number?

Mark William Pregenzer, PHARM.D.'s National Provider Identifier (NPI) is 1851660690, issued on Dec 23, 2011. An NPI identifies a provider in billing; it is not a license.

Where is Mark William Pregenzer, PHARM.D. located?

The NPPES record lists a practice address at 757 Westwood Plz, Los Angeles, CA, 90095. Phone: (310) 267-8522. Providers update this record themselves, so call before visiting.

How can I verify Mark William Pregenzer, PHARM.D.'s license?

NPPES lists California license number RPH 59690, 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.