Thomas Knox, M.D.
NPI 1023169133 · Psychiatry Physician · Ridgefield, CT
Thomas Knox, M.D. is a Psychiatry Physician provider in Ridgefield, CT (NPI 1023169133).
Provider details
- NPI number
- 1023169133
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 156139 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
19 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 25 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Aripiprazole | 58 | 13 |
| Bupropion Hclbrand: Bupropion Xl | 51 | — |
| Clonazepam | 51 | 11 |
| Dextroamphetamine/Amphetaminebrand: Dextroamphetamine-Amphetamine | 45 | — |
| Dextroamphetamine Sulfate | 43 | — |
| Trazodone Hcl | 38 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$506 across 22 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-01-15
- Last updated
- 2007-07-08
Frequently asked questions
- What is Thomas Knox's NPI number?
- Thomas Knox's National Provider Identifier (NPI) is 1023169133, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Thomas Knox's specialty?
- Thomas Knox is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Thomas Knox located?
- Thomas Knox's practice location on file with NPPES is 80 Grove St, Ridgefield, CT 06877-4104.
- What is Thomas Knox's phone number?
- The practice phone number listed in the NPPES registry for Thomas Knox is (203) 438-0436.
- Is Thomas Knox's NPI active?
- Yes — Thomas Knox's NPI (1023169133) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.