John Wenceslao, MD
NPI 1740203868ActiveIndividual· Internal Medicine· Bloomfield, CT
Internal Medicine (MD) with Collins Medical Associates 2 PC, practicing in Bloomfield, Connecticut. Their prescriptions cost Medicare Part D more than their services did: $946,473 for 13,753 claims, against $76,194 paid for services in 2024. Abbvie Inc. was the largest of 34 companies reporting payments in 2025, $3,690 in all, mostly food and beverage. Lists Griffin Hospital and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1740203868 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jul 26, 2006 |
| Last updated in NPPES | Jun 21, 2021 |
| Certified by provider | Jun 21, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 035462 | CT |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Internal Medicine (CT) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 239 |
|---|---|
| Services billed | 1,152 across 24 procedure codes |
| Paid by Medicare | $76,194 |
Part D prescriptions in 2024
| Prescriptions (claims) | 13,753 · 21,247 30-day fills |
|---|---|
| Patients | 534 |
| Total drug cost | $946,473 |
| Generic share | 88% of claims |
Education and affiliations
| Graduation year | 1987 |
|---|---|
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Collins Medical Associates 2 PCHartford, CT · 43 clinicians
Hospital affiliations
- Griffin HospitalDerby, CT
- Manchester Memorial HospitalManchester, CT
- St Francis Hospital & Medical CenterHartford, CT
Other facilities
- Atrinity Home HealthHome health agency · Wallingford, CT
- Constellation Home CareHospice · Norwalk, CT
- Manchester Rehabilitation and Healthcare CenterNursing home · Manchester, CT
- Riverside Health & Rehabilitation CenterNursing home · East Hartford, CT
Industry payments (Open Payments)
- 2025$3,690 · 179 payments from 34 companies
- 2024$3,917 · 217 payments from 29 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $447.93 | 27 |
| Astrazeneca Pharmaceuticals LP | $420.55 | 25 |
| Glaxosmithkline, LLC. | $293.76 | 14 |
| Esperion Therapeutics, Inc. | $193.48 | 10 |
| Novartis Pharmaceuticals Corporation | $175.67 | 6 |
What the 2025 payments were for
- Food and Beverage$3,591 · 178 payments
- Education$99.95 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 38 internal medicine physicians in Bloomfield · All internal medicine physicians in Connecticut