Thomas Whelan, M.D.
NPI 1972543692 · Family Medicine Physician · Brookfield, CT
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Thomas Whelan, M.D. is a Family Medicine Physician provider in Brookfield, CT (NPI 1972543692).
Provider details
- NPI number
- 1972543692
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 57225 (CT)
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
20 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 · 55 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 147 | 52 |
| Celecoxib | 116 | 47 |
| Hydrochlorothiazide | 116 | 35 |
| Levothyroxine Sodium | 116 | 39 |
| Rosuvastatin Calcium | 115 | 38 |
| Losartan Potassium | 105 | 35 |
| Amlodipine Besylate | 101 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$840 across 48 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
- 2006-06-08
- Last updated
- 2020-06-02
- Certified
- 2020-06-02
Frequently asked questions
- What is Thomas Whelan's NPI number?
- Thomas Whelan's National Provider Identifier (NPI) is 1972543692, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Thomas Whelan's specialty?
- Thomas Whelan is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Thomas Whelan located?
- Thomas Whelan's practice location on file with NPPES is 401 Federal Rd, Brookfield, CT 06804-2037.
- What is Thomas Whelan's phone number?
- The practice phone number listed in the NPPES registry for Thomas Whelan is (203) 775-6365.
- Does Thomas Whelan accept Medicare?
- Thomas Whelan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Thomas Whelan's NPI active?
- Yes — Thomas Whelan's NPI (1972543692) is active in the NPPES registry as of the last update on 2020-06-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.