Thomas Edward Knox, M.D.
Psychiatry Physician · Ridgefield, CT
Thomas Edward Knox, M.D. is a psychiatry physician with a practice address in Ridgefield, Connecticut, and NPI 1023169133, issued on Jan 15, 2007. Check the license on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Thomas Edward Knox
- Credential
- M.D.
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- 156139 NY
Self-reported in NPPES; status is on the state search - Practice location
- 80 Grove St, Ridgefield, CT 06877
- Phone
- (203) 438-0436
- Enumerated
- Jan 15, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20040616001400); may accept Medicare assignment
- Medical or professional school
- Johns Hopkins University School Of Medicine, 1983
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 1,174 in Connecticut → Look up another NPI →
Also registered at 80 Grove St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Thomas Edward Knox in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining BoardCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
21% fewer Medicare Part D claims than the average psychiatry physician in 2024
790 Medicare Part D claims for 48 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims.
Most prescribed
- Aripiprazole58 claims
- Bupropion Xl51 claims
- Clonazepam51 claims
- Dextroamphetamine-Amphetamine45 claims
- Dextroamphetamine Sulfate43 claims
- Trazodone Hcl38 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $505.91
22 payments; by number, the most common kind was food and beverage; the largest payer was Boehringer Ingelheim Pharmaceuticals, Inc. The 13,693 providers of this specialty with any payment received $4,954.93 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Thomas Edward Knox among 1,174 psychiatry physician records in Connecticut
Thomas Edward Knox, M.D. is one of 1,174 psychiatry physician records with a practice address in Connecticut. 70% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 40% of them.
- NPI issued2007 · 40% of these records are older, 44% newer
- In a Medicare fileYes · 70% of these records are
- In the CMS Doctors and Clinicians fileYes · 43% of these records are
- Graduated1983 · median 2003 among the 503 with a school on file
- Record last updated2007 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Psychiatry Physician providers in Connecticut
There are 1,174 psychiatry physician records in Connecticut.
All 1,174 in Connecticut → Every provider in Ridgefield → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Benjamin Oko, MDRidgefield, CT 068771194898080
- Daniel Smuckler, MDRidgefield, CT 068771689744799
- Simon Trutt, M.D.Ridgefield, CT 068771659641389
- Sonya Joseph, MDRiverside, CT 068781245520485
- Jill Barron, M.D.Westport, CT 068801346260015
- Mohamed Elsamra, M.D.Westport, CT 068801457464406
- Jacques Germain, M.D.Westport, CT 068801427122688
- Jonathan Horowitz, M.D.Westport, CT 068801174500185
Common questions
What is Thomas Edward Knox, M.D.'s NPI number?
Thomas Edward Knox, M.D.'s National Provider Identifier (NPI) is 1023169133, issued on Jan 15, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Thomas Edward Knox, M.D. located?
The NPPES record lists a practice address at 80 Grove St, Ridgefield, CT, 06877. Phone: (203) 438-0436. Providers update this record themselves, so call before visiting.
How can I verify Thomas Edward Knox, M.D.'s license?
Search the Connecticut Medical Examining Board at https://www.elicense.ct.gov/Lookup/LicenseLookup.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Thomas Edward Knox, M.D. prescribe under Medicare Part D?
In 2024, Thomas Edward Knox, M.D. had 790 Medicare Part D claims for 48 beneficiaries; the average among psychiatry physician prescribers was 1,000. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.