1. Home
  2. Directory
  3. Connecticut
  4. West Haven
  5. Pharmacist
  6. NPI Profile
Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. CASANDRA ANN O'NEIL PHARMD
NPI 1851879514
Pharmacist - Pharmacotherapy in West Haven, CT

Active since August 03, 2018
950 CAMPBELL AVE, WEST HAVEN, CT 06516(203) 932-5711 Get Directions Write a Review

NPPES record last updated: September 21, 2026. Verified against the NPPES registry weekly; last sync: September 27, 2026.

Record update history: Sep 21, 2026, Aug 26, 2026, Aug 3, 2018 (3 updates tracked since 2018).

About Dr. Casandra Ann O'neil Pharmd NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. CASANDRA ANN O'NEIL PHARMD (NPI 1851879514) is an individual pharmacotherapy provider in West Haven, Connecticut, licensed in Connecticut (PCT.0014430) and active in the NPI registry since August 2018.

NPPES Registry Identity

NPI1851879514
Entity TypeIndividualFemale
Primary Taxonomy1835P1200X
Provider Legal NameDR. CASANDRA ANN O'NEILCredential: PHARMD
Location Address950 CAMPBELL AVEWest Haven, CT 06516-2770
Mailing Address950 Campbell AveWest Haven, CT 06516-2770 · (203) 932-5711
Phone(203) 932-5711
Sole ProprietorNo
Enumeration DateAugust 3, 2018
Last NPPES UpdateSeptember 21, 20263 updates tracked since enumeration
NPPES CertifiedSeptember 21, 2026
✔ NPI 1851879514 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPharmacist · PharmacotherapyPharmacy Service Providers
Taxonomy Code1835P1200X
License✔ Licensed in CT · PCT.0014430
Definition
A licensed pharmacist who has demonstrated specialized knowledge and skill in optimizing pharmacotherapeutic care of patients, by developing, implementing, monitoring, and modifying complex treatment plans, providing advanced level education and consultation, and collaborating with other health professionals in the management of therapy.
950 CAMPBELL AVE, West Haven, CT 06516
Open in Google Maps ↗

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

LESLIE LIN PHARMD
Pharmacist (Ambulatory Care)
950 CAMPBELL AVE, PHARMACY SERVICE (119)
WEST HAVEN, CT 06516
South Central Connecticut Planning Region (203) 932-5711
NICHOLAS ANDREW VISSICCHIO PH.D.
Psychologist (Clinical)
950 CAMPBELL AVE
WEST HAVEN, CT 06516
South Central Connecticut Planning Region (203) 932-5711
DEVON MACKAY LMSW
Social Worker (Clinical)
950 CAMPBELL AVE
WEST HAVEN, CT 06516
South Central Connecticut Planning Region (203) 932-5711
MR. JAMES MICHAEL ALEKSUNES
Counselor
950 CAMPBELL AVE, MS 122V
WEST HAVEN, CT 06516
South Central Connecticut Planning Region (203) 932-5711
MRS. TRACEY PASCARELLA RD
Dietitian, Registered
950 CAMPBELL AVE
WEST HAVEN, CT 06516
South Central Connecticut Planning Region (203) 932-5711
DR. ANTHONY JAMES LISI D.C.
Chiropractor
950 CAMPBELL AVE, BUILDING 2, FLOOR 4
WEST HAVEN, CT 06516
South Central Connecticut Planning Region (203) 932-5711
MS. EVANGELINE BENOIT
Nurse Anesthetist, Certified Registered
950 CAMPBELL AVE
WEST HAVEN, CT 06516
South Central Connecticut Planning Region (203) 932-5711
MS. MELISSA ANN SIMONE LCSW
Social Worker (Clinical)
950 CAMPBELL AVE
WEST HAVEN, CT 06516
South Central Connecticut Planning Region (860) 694-4875

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Casandra O'neil's NPI number?

The NPI number for Casandra O'neil is 1851879514. It was assigned to this individual provider in the NPPES registry on August 3, 2018.

Where is Casandra O'neil located?

Casandra O'neil practices at 950 Campbell Ave, West Haven, CT 06516. The listed phone number is (203) 932-5711.

What is Casandra O'neil's specialty?

The primary specialty registered for this NPI is Pharmacist, specializing in Pharmacotherapy, with taxonomy code 1835P1200X.

When was this NPI record last updated?

The NPPES record for Casandra O'neil was last updated on September 21, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.