Ann Margaret O'Brien, RPH
Pharmacist · Canton, CT
Ann Margaret O'Brien, RPH is a pharmacist with a practice address in Canton, Connecticut, and NPI 1962779967, issued on Nov 19, 2011. Check the license (Connecticut 8789, as entered in NPPES) with the Connecticut board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Ann Margaret O'Brien
- Credential
- RPH
- Primary taxonomy
- Pharmacist 183500000X
- License number
- 8789 CT
Self-reported in NPPES; status is on the state search - Practice location
- 220 Albany Tpke, Canton, CT 06019
- Phone
- (860) 693-8329
- Enumerated
- Nov 19, 2011
- Record last updated
- Nov 19, 2011 (not updated in 15 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest pharmacist records → All 3,247 in Connecticut → Look up another NPI →
Also registered at 220 Albany Tpke
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Charles Bonelli, O.D.Optometrist1154492510
- Christopher Bonelli, O.D.Optometrist1285067066
- Andrew Fyne, PHARM DPharmacist1780230714
- Jason JefferyPharmacist1154815942
- Jason Kasprzak, D.M.D.Dentist1255544110
- Sunna LiuPharmacist1952085938
Verify Ann Margaret O'Brien in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Connecticut board licenses this profession
Search for license 8789Check 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
28 Medicare Part D claims for 28 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.
- Arexvy13 claims
- Shingrix12 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.
Ann Margaret O'Brien among 3,247 pharmacist records in Connecticut
Ann Margaret O'Brien, RPH is one of 3,247 pharmacist records with a practice address in Connecticut. 7% 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 13% of them.
- NPI issued2011 · 13% of these records are older, 73% newer
- In a Medicare fileYes · 7% of these records are
- In the CMS Doctors and Clinicians fileNo · 0% 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 Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
12 pharmacist records list a practice address in Canton
They are 12 of the 107 NPPES records with a practice address in Canton, and 3,247 pharmacist records in Connecticut.
All 3,247 in Connecticut → Every provider in Canton → Pharmacist nationwide →
The 8 pharmacist records with the nearest ZIP codes
- Andrew Fyne, PHARM DCanton, CT 060191780230714
- Karen Gradischer, PHARM DCollinsville, CT 060191578434817
- Jason JefferyCanton, CT 060191154815942
- Eunjee Lee, RPHCanton, CT 060191629671151
- Sunna LiuCanton, CT 060191952085938
- Demetria Malone, PHARMDCanton, CT 060191124676036
- James Moore, RPHCanton, CT 060191659637775
- Ashley Murphy, PHARMDCanton, CT 060191356947105
Common questions
What is Ann Margaret O'Brien, RPH's NPI number?
Ann Margaret O'Brien, RPH's National Provider Identifier (NPI) is 1962779967, issued on Nov 19, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Ann Margaret O'Brien, RPH located?
The NPPES record lists a practice address at 220 Albany Tpke, Canton, CT, 06019. Phone: (860) 693-8329. Providers update this record themselves, so call before visiting.
How can I verify Ann Margaret O'Brien, RPH's license?
NPPES lists Connecticut license number 8789, as entered by the provider. Search the Connecticut board that licenses this profession; the NPPES record confirms identity only.
How much does Ann Margaret O'Brien, RPH prescribe under Medicare Part D?
In 2024, Ann Margaret O'Brien, RPH had 28 Medicare Part D claims for 28 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.