Colleen Sherkow, M.D.
NPI 1073755534ActiveIndividual· Internal Medicine· Wallingford, CT
Internal Medicine (M.D.) in Wallingford, Connecticut, trained at University of Wisconsin School of Medicine (class of 2009). Their prescriptions cost Medicare Part D more than their services did: $1,066,607 for 8,269 claims, against $59,137 paid for services in 2024.
Overview
| NPI | 1073755534 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Mar 30, 2009 |
| Last updated in NPPES | Dec 16, 2013 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 051464 | 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 | 185 |
|---|---|
| Services billed | 758 across 32 procedure codes |
| Paid by Medicare | $59,137 |
Part D prescriptions in 2024
| Prescriptions (claims) | 8,269 · 19,255 30-day fills |
|---|---|
| Patients | 683 |
| Total drug cost | $1,066,607 |
| Generic share | 86% of claims |
Education and affiliations
| Medical school | University of Wisconsin School of Medicine |
|---|---|
| Graduation year | 2009 |
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Hartford Healthcare Medical Group IncPutnam, CT · 267 clinicians
Hospital affiliations
- Griffin HospitalDerby, CT
- Hartford HospitalHartford, CT
- Midstate Medical CenterMeriden, CT
- Yale-New Haven HospitalNew Haven, CT
Other facilities
- Hartford Healthcare at HomeHome health agency · East Hartford, CT
- Masters in Home Care, LLCHome health agency · Rocky Hill, CT
- Hartford Healthcare at HomeHospice · East Hartford, CT
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 40 internal medicine physicians in Wallingford · All internal medicine physicians in Connecticut