Gregory Guillaume, PHARMD
Pharmacist · Austell, GA
Gregory Guillaume, PHARMD is a pharmacist with a practice address in Austell, Georgia, and NPI 1154604585, issued on Sep 22, 2011. Check the license with the Georgia board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Gregory Guillaume
- Credential
- PHARMD
- Primary taxonomy
- Pharmacist 183500000X
- License number
- PS45589 FL
Self-reported in NPPES; status is on the state search - Practice location
- 4120 Austell RD, Austell, GA 30106
- Phone
- (561) 308-7466
- Enumerated
- Sep 22, 2011
- Record last updated
- Dec 20, 2022
- Entity
- Type 1 · individual
8 nearest pharmacist records → All 8,291 in Georgia → Look up another NPI →
Also registered at 4120 Austell RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Laura Bennett, RPHPharmacist1659654879
- Ashley Cole, PHARMDPharmacist1568864627
- Eugene EzekwuechePharmacist1477262871
- Ivy Fenin, NPNurse Practitioner1780039131
- Karen Holtzclaw, NPFamily Nurse Practitioner1184751596
- Sunday Ijeoma, PHARM DPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1265714950
Verify Gregory Guillaume in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Georgia board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Most of these Medicare Part D claims are vaccines, 100% of the cost of the top drugs
27 Medicare Part D claims for 23 beneficiaries, against an average of 119 among the 28,524 providers of this specialty who prescribed in Part D. Brand-name drugs were 100% of claims.
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.
- Shingrix16 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.
Gregory Guillaume among 8,291 pharmacist records in Georgia
Gregory Guillaume, PHARMD is one of 8,291 pharmacist records with a practice address in Georgia. 8% 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 17% of them.
- NPI issued2011 · 17% of these records are older, 70% newer
- In a Medicare fileYes · 8% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2022 · 73% 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 Georgia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
48 pharmacist records list a practice address in Austell
They are 48 of the 1,056 NPPES records with a practice address in Austell, and 8,291 pharmacist records in Georgia.
All 8,291 in Georgia → Every provider in Austell → Pharmacist nationwide →
The 8 pharmacist records with the nearest ZIP codes
- Janice Carlile, R.PH.Austell, GA 301061992706915
- Michelle Hill-Collier, RPHAustell, GA 301061639478225
- Judy Joseph, PHARMDAustell, GA 301061427374495
- Leisa Marshall, PHARM.D., CGPAustell, GA 301061952303455
- J'Shaun McLeod, PHARM.D.Austell, GA 301061073894721
- Yolanda Montague, PHARM.D.Austell, GA 301061447356282
- Mudasiru OyewumiAustell, GA 301061598990111
- Stephanie Peanasky, PHARM.D.Austell, GA 301061770877003
Common questions
What is Gregory Guillaume, PHARMD's NPI number?
Gregory Guillaume, PHARMD's National Provider Identifier (NPI) is 1154604585, issued on Sep 22, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Gregory Guillaume, PHARMD located?
The NPPES record lists a practice address at 4120 Austell RD, Austell, GA, 30106. Phone: (561) 308-7466. Providers update this record themselves, so call before visiting.
How can I verify Gregory Guillaume, PHARMD's license?
Search the Georgia board that licenses this profession; the NPPES record confirms identity only.
How much does Gregory Guillaume, PHARMD prescribe under Medicare Part D?
In 2024, Gregory Guillaume, PHARMD had 27 Medicare Part D claims for 23 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.