Doctor profile · Federal record

Dr. Margaret O'Neill, MD

Pediatric Adolescent Medicine Physician · West Hartford, CT

  • NPI 1942319157
  • 20 yrs on file
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
970 Farmington Ave Ste 201
West Hartford, CT 061072134
(860) 561-4300
fax (860) 561-1635

Credentials & registration

NPPES · NUCC
NPI registered
August 2006 — 20 yrs on file
Profile last updated
July 9, 2007
Specialty taxonomy
2080A0000X — NUCC code
State license (1)
Connecticut #035312
Medicaid
CT #00135312700

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1942319157. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$18
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
GlaxoSmithKline, LLC. 1 $17.68

By nature of payment

Food and Beverage
$18

Frequently asked questions

Auto-generated from federal data
What is Dr. Margaret O'Neill's medical specialty?
Dr. Margaret O'Neill practices Pediatric Adolescent Medicine Physician in West Hartford, CT.
Where does Dr. Margaret O'Neill practice?
Dr. Margaret O'Neill practices at 970 Farmington Ave Ste 201, West Hartford, CT 061072134. Office phone: 8605614300.
What is Dr. Margaret O'Neill's NPI?
Dr. Margaret O'Neill's National Provider Identifier (NPI) is 1942319157, issued by NPPES.