Max Kenny Fon Sing, MD
NPI 1154436228ActiveIndividual· Internal Medicine· Brandon, FL
Internal Medicine (MD) with Optumcare Florida, LLC, practicing in Brandon, Florida. Their prescriptions cost Medicare Part D more than their services did: $423,054 for 8,136 claims, against $6,774 paid for services in 2024.
Overview
| NPI | 1154436228 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Aug 20, 2006 |
| Last updated in NPPES | Mar 7, 2023 |
| Certified by provider | Aug 16, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | ME102048 | FL |
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 (FL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 41 |
|---|---|
| Services billed | 126 across 10 procedure codes |
| Paid by Medicare | $6,774 |
Part D prescriptions in 2024
| Prescriptions (claims) | 8,136 · 16,330 30-day fills |
|---|---|
| Patients | 593 |
| Total drug cost | $423,054 |
| Generic share | 86% of claims |
Education and affiliations
| Graduation year | 1989 |
|---|---|
| Medicare specialty | Internal Medicine |
Medical group
- Optumcare Florida, LLCLutz, FL · 272 clinicians
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 119 internal medicine physicians in Brandon · All internal medicine physicians in Florida