Doctor profile · Federal record

Dr. William Kornegay, APRN

Psychiatric/Mental Health Nurse Practitioner (CMS: Psychiatry) · Registered Nurse · Psychiatric/Mental Health Registered Nurse · New London, CT

  • NPI 1366160277
  • Accepts Medicare
  • 4 yrs in practice
  • Male
  • Solo practice
  • No sanctions

Practice & contact

Operates at 3 locations .

NPPES Updated May 11, 2026
Primary practice
21 Montauk Ave
New London, CT 063204906
(860) 439-6400
fax (860) 390-1463
Additional location
112 New London RD
Groton, CT 063404869
(860) 215-1410
Additional location
54 Ronald RD
Groton, CT 063403819
(860) 235-6983
Mailing address
54 Ronald RD
Groton, CT 063403819

Credentials & registration

NPPES · NUCC
NPI registered
August 2022 — 4 yrs on file
Profile last updated
February 6, 2023
Year of graduation
2022 — 4 yrs since
Specialty taxonomy
363LP0808X — NUCC code
State licenses (3)
Connecticut #2022030521 · Connecticut #116351 · Connecticut #11161

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1366160277. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
334
Distinct HCPCS
6
Medicare allowed
$37,865
HCPCS Description Services Patients Avg allowed
99443 Telephone medical discussion with physician, 21-30 minutes 133 39 $131
99214 Established patient office or other outpatient visit, 30-39 minutes 80 32 $130
96372 Injection of drug or substance under skin or into muscle 51 11 $15
99309 Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes 40 26 $111
99305 Initial nursing facility care with moderate level of medical decision making, per day, if using time, at least 35 minutes 17 17 $139
99215 Established patient office or other outpatient visit, 40-54 minutes 13 12 $188

In context: peer comparison

Among 7 peers in this city , average services per provider: 75. This provider delivers 4.5× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$1,877
Transactions
98
Manufacturers
12
Payer (manufacturer) Industry Txns Amount
Neurocrine Biosciences, Inc. 15 $304.95
Janssen Pharmaceuticals, Inc 9 $234.25
ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) 14 $229.69
ABBVIE INC. 16 $195.04
Indivior Inc. 8 $194.26
Alkermes, Inc. 9 $151.32
Teva Pharmaceuticals USA, Inc. 8 $150.29
Vanda Pharmaceuticals Inc. 7 $146.41
Lundbeck LLC 4 $100.21
E.R. Squibb & Sons, L.L.C. 4 $93.28
Otsuka America Pharmaceutical, Inc. 3 $59.39
Axsome Therapeutics, Inc. 1 $18.07

By nature of payment

Food and Beverage
$1,850
Education
$27

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
1,787
Patients
236
Total drug cost
$46,567
Drug Type Claims Patients Total cost
Trazodone Hcl Generic 193 34 $2,960
Quetiapine Fumarate Generic 191 22 $6,494
Clozapine Generic 164 0 $6,637
Benztropine Mesylate Generic 140 25 $1,664
Bupropion Xl (Bupropion Hcl) Brand 137 19 $3,914
Risperidone Generic 126 11 $1,558
Buspirone Hcl Generic 114 16 $1,967
Aripiprazole Generic 108 20 $8,901
Clonazepam Generic 100 20 $1,488
Fluoxetine Hcl Generic 100 11 $803

Frequently asked questions

Auto-generated from federal data
What is Dr. William Kornegay's medical specialty?
Dr. William Kornegay practices Psychiatric/Mental Health Nurse Practitioner in New London, CT.
Where does Dr. William Kornegay practice?
Dr. William Kornegay practices at 21 Montauk Ave, New London, CT 063204906. Office phone: 8604396400.
What is Dr. William Kornegay's NPI?
Dr. William Kornegay's National Provider Identifier (NPI) is 1366160277, issued by NPPES.
Does Dr. William Kornegay accept Medicare assignment?
Yes. Dr. William Kornegay accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. William Kornegay commonly perform?
Top Medicare-reported procedures in 2023: Telephone medical discussion with physician (HCPCS 99443); Established patient office or other outpatient visit (HCPCS 99214); Injection of drug or substance under skin or into muscle (HCPCS 96372). Source: CMS Medicare Physician & Other Practitioners file.