Sharon Tan, MD
NPI 1801810668ActiveIndividual· Internal Medicine· West Hartford, CT
Internal Medicine (MD) with McLean Fund and 1 other group, practicing in West Hartford, Connecticut. Their prescriptions cost Medicare Part D more than their services did: $158,014 for 3,826 claims, against $46,588 paid for services in 2024. Novo Nordisk Inc was the largest of 16 companies reporting payments in 2025, $823.27 in all, mostly food and beverage. Lists St Francis Hospital & Medical Center as a hospital affiliation.
Overview
| NPI | 1801810668 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jul 26, 2006 |
| Last updated in NPPES | May 13, 2024 |
| Certified by provider | May 13, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 039000 | CT |
| Internal Medicine, Geriatric Medicine | 207RG0300X | 03900 | CT |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Geriatric Medicine (CT) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 151 |
|---|---|
| Services billed | 607 across 17 procedure codes |
| Paid by Medicare | $46,588 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,826 · 9,493 30-day fills |
|---|---|
| Patients | 436 |
| Total drug cost | $158,014 |
| Generic share | 91% of claims |
Education and affiliations
| Graduation year | 1995 |
|---|---|
| Medicare specialty | Geriatric Medicine |
| Telehealth | Offers telehealth |
Medical groups
- McLean FundSimsbury, CT · 108 clinicians
- Collins Medical Associates 2 PCHartford, CT · 43 clinicians
Hospital affiliation
- St Francis Hospital & Medical CenterHartford, CT
Industry payments (Open Payments)
- 2025$823.27 · 39 payments from 16 companies
- 2024$1,168 · 51 payments from 16 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novo Nordisk Inc | $219.88 | 12 |
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | $99.27 | 5 |
| Abbott Laboratories | $78.52 | 3 |
| Glaxosmithkline, LLC. | $58.81 | 3 |
| Exact Sciences Corporation | $55.80 | 2 |
What the 2025 payments were for
- Food and Beverage$823.27 · 39 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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