NPPES file of Aug 9, 2026

Margaret Cornelia Meyer-Pretorius

Pharmacist · Sonoma, CA

Margaret Cornelia Meyer-Pretorius is a pharmacist with a practice address in Sonoma, California, and NPI 1669763124, issued on May 2, 2011. Check the license (California 27336, 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
1669763124
Name
Margaret Cornelia Meyer-Pretorius
Primary taxonomy
Pharmacist 183500000X
License number
27336 CA
Self-reported in NPPES; status is on the state search
Practice location
19205 Highway 12, Sonoma, CA 95476
Phone
(707) 938-0547
Enumerated
May 2, 2011
Record last updated
May 2, 2011 (not updated in 15 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 19205 Highway 12

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

  1. Angelique Le RouxPharmacist1336455682
  2. Randy RyderPharmacist1780995357

Verify Margaret Cornelia Meyer-Pretorius 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 27336
    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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Most of these Medicare Part D claims are vaccines, 96% of the cost of the top drugs

150 Medicare Part D claims for 127 beneficiaries, against an average of 119 among the 28,524 providers of this specialty who prescribed in Part D. Brand-name drugs were over 99% of claims.

  1. Margaret Meyer-Pretorius150
  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. Shingrix69 claims
  2. Arexvy50 claims
  3. Boostrix Tdap16 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.

Margaret Cornelia Meyer-Pretorius among 32,533 pharmacist records in California

Margaret Cornelia Meyer-Pretorius 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 2011, is newer than 18% of them.

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

28 pharmacist records list a practice address in Sonoma

They are 28 of the 395 NPPES records with a practice address in Sonoma, and 32,533 pharmacist records in California.

The 8 pharmacist records with the nearest ZIP codes

  1. Lee Amari, PHARM DSonoma, CA 954761346526407
  2. John Bueno, PHARMDSonoma, CA 954761437671591
  3. Amandeep GargSonoma, CA 954761083910368
  4. Robin LabitzkeSonoma, CA 954761114209616
  5. Tiffany Lam, PHARMDSonoma, CA 954761821517657
  6. Nancy Large, PHARMDSonoma, CA 954761215466552
  7. Angelique Le RouxSonoma, CA 954761336455682
  8. Mary McHughes, PHARM.D.Sonoma, CA 954761427251552

Common questions

What is Margaret Cornelia Meyer-Pretorius's NPI number?

Margaret Cornelia Meyer-Pretorius's National Provider Identifier (NPI) is 1669763124, issued on May 2, 2011. An NPI identifies a provider in billing; it is not a license.

Where is Margaret Cornelia Meyer-Pretorius located?

The NPPES record lists a practice address at 19205 Highway 12, Sonoma, CA, 95476. Phone: (707) 938-0547. Providers update this record themselves, so call before visiting.

How can I verify Margaret Cornelia Meyer-Pretorius's license?

NPPES lists California license number 27336, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Margaret Cornelia Meyer-Pretorius prescribe under Medicare Part D?

In 2024, Margaret Cornelia Meyer-Pretorius had 150 Medicare Part D claims for 127 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.