Christopher O'Brien, PHARMD
Pharmacist · Waterbury, CT
Christopher O'Brien, PHARMD is a pharmacist with a practice address in Waterbury, Connecticut, and NPI 1740652361, issued on Oct 22, 2015. Check the license (Connecticut 13362, as entered in NPPES) with the Connecticut board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Christopher O'Brien
- Credential
- PHARMD
- Primary taxonomy
- Pharmacist 183500000X
- License number
- 13362 CT
Self-reported in NPPES; status is on the state search - Practice location
- 256 Bunker Hill Ave, Waterbury, CT 06708
- Phone
- (203) 574-7825
- Enumerated
- Oct 22, 2015
- Record last updated
- Oct 22, 2015 (not updated in 11 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 256 Bunker Hill Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kevin CzarzastyPharmacist1598942658
- William SummaPharmacist1417327438
Verify Christopher 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 13362Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Christopher O'Brien among 3,247 pharmacist records in Connecticut
Christopher O'Brien, PHARMD 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 not. Its NPI, issued in 2015, is newer than 35% of them.
- NPI issued2015 · 35% of these records are older, 62% newer
- In a Medicare fileNo · 7% of these records are
- In the CMS Doctors and Clinicians fileNo · 0% of these records are
- Record last updated2015 · 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).
91 pharmacist records list a practice address in Waterbury
They are 91 of the 3,148 NPPES records with a practice address in Waterbury, and 3,247 pharmacist records in Connecticut. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 3,247 in Connecticut → Every provider in Waterbury → Pharmacist nationwide →
The 8 pharmacist records with the nearest ZIP codes
- Xhensila AlickolliWaterbury, CT 067081043668809
- Kevin CzarzastyWaterbury, CT 067081598942658
- Colleen Dalrymple, PHARMDWaterbury, CT 067081316260862
- John Deldebbio, B.S., R.PH.Waterbury, CT 067081083907950
- Frank Diaferio, PHARMDWaterbury, CT 067081689190753
- Christina Durkin, RPHWaterbury, CT 067081982151023
- Joseph Livolsi, RPHWaterbury, CT 067081477603082
- Brian Osso, RPHWaterbury, CT 067081073032728
Common questions
What is Christopher O'Brien, PHARMD's NPI number?
Christopher O'Brien, PHARMD's National Provider Identifier (NPI) is 1740652361, issued on Oct 22, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Christopher O'Brien, PHARMD located?
The NPPES record lists a practice address at 256 Bunker Hill Ave, Waterbury, CT, 06708. Phone: (203) 574-7825. Providers update this record themselves, so call before visiting.
How can I verify Christopher O'Brien, PHARMD's license?
NPPES lists Connecticut license number 13362, as entered by the provider. Search the Connecticut 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.
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.