Doctor profile · Federal record

Dr. Thomas Knightly, M.D.

Psychiatry Physician (CMS: Psychiatry) · Psychiatry Physician · Stamford, CT

  • NPI 1447771282
  • Accepts Medicare
  • 9 yrs in practice
  • Licensed in 2 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
1055 Summer St Ste 2
Stamford, CT 069055527
(203) 504-9758
Additional location
300 Pasteur Dr
Stanford, CA 943052200
(650) 723-4000

Credentials & registration

NPPES · NUCC
NPI registered
July 2017 — 9 yrs on file
Profile last updated
September 30, 2024
Year of graduation
2017 — 9 yrs since
Specialty taxonomy
2084P0800X — NUCC code
State licenses (2)
Connecticut #71157 · California #A171719

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1447771282. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$197
Transactions
6
Manufacturers
3
Payer (manufacturer) Industry Txns Amount
Janssen Pharmaceuticals, INC 4 $150.77
Tris Pharma INC 1 $24.06
Teva Pharmaceuticals USA, INC. 1 $21.74

By nature of payment

Food and Beverage
$197

Frequently asked questions

Auto-generated from federal data
What is Dr. Thomas Knightly's medical specialty?
Dr. Thomas Knightly practices Psychiatry Physician in Stamford, CT.
Where does Dr. Thomas Knightly practice?
Dr. Thomas Knightly practices at 1055 Summer St Ste 2, Stamford, CT 069055527. Office phone: 2035049758.
What is Dr. Thomas Knightly's NPI?
Dr. Thomas Knightly's National Provider Identifier (NPI) is 1447771282, issued by NPPES.
Does Dr. Thomas Knightly accept Medicare assignment?
Yes. Dr. Thomas Knightly accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.