Doctor profile · Federal record

Dr. CAROLYN O'CONNOR, MD

Internal Medicine Physician (CMS: INTERNAL MEDICINE) · SOUTHBURY, CT

  • NPI 1851328413
  • Accepts Medicare
  • 30 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
385 MAIN ST S, SUITE 106
SOUTHBURY, CT 064884240
(203) 262-4600

Credentials & registration

NPPES · NUCC
NPI registered
June 2006 — 20 yrs on file
Profile last updated
October 28, 2021
Year of graduation
1996 — 30 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
Connecticut #041131
Medicaid
CT #001411313

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1851328413. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,058
Distinct HCPCS
10
Medicare allowed
$107,178
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 378 213 $135
99497 Advance care planning, first 30 minutes 144 144 $86
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit 140 140 $136
99213 Established patient office or other outpatient visit, 20-29 minutes 114 82 $96
96372 Injection of drug or substance under skin or into muscle 85 19 $15
J3420 Injection, vitamin b-12 cyanocobalamin, up to 1000 mcg 83 17 $2
99204 New patient office or other outpatient visit, 45-59 minutes 33 33 $176
90694 Influenza vaccine, quadrivalent inactivated, 0.5 ml dosage 24 24 $76
G0008 Administration of influenza virus vaccine 24 24 $33
93000 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 20 19 $15

In context: peer comparison

Among 7 peers in this city , average services per provider: 105. This provider delivers 10× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$47
Transactions
2
Manufacturers
2
Payer (manufacturer) Industry Txns Amount
Bayer Healthcare Pharmaceuticals Inc. 1 $33.10
ABBVIE INC. 1 $13.65

By nature of payment

Food and Beverage
$47

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
2,044
Patients
626
Total drug cost
$33,880
Drug Type Claims Patients Total cost
Amlodipine Besylate Generic 284 79 $2,645
Atorvastatin Calcium Generic 271 84 $3,858
Levothyroxine Sodium Generic 258 67 $4,569
Lisinopril Generic 230 64 $1,957
Hydrochlorothiazide Generic 155 51 $811
Rosuvastatin Calcium Generic 155 50 $3,742
Escitalopram Oxalate Generic 120 40 $1,729
Losartan Potassium Generic 100 35 $1,935
Metoprolol Succinate Generic 100 28 $2,566
Metformin Hcl Generic 88 26 $665

Hospital affiliations

CMS Hospital Compare