David J. Knudtson, MD
NPI 1558420323ActiveIndividual· Internal Medicine· Naples, FL
Internal Medicine (MD) in Naples, Florida, trained at Northwestern University Feinberg Medical School (class of 1991). Their prescriptions cost Medicare Part D more than their services did: $1,180,314 for 10,752 claims, against $483,424 paid for services in 2024. Novo Nordisk Inc was the largest of 12 companies reporting payments in 2025, $1,195 in all, mostly food and beverage.
Overview
| NPI | 1558420323 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Dec 7, 2006 |
| Last updated in NPPES | Jul 12, 2021 |
| Certified by provider | Jun 8, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | ME148391 | FL |
| Internal Medicine | 207R00000X | 036-081216 | IL |
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 | 996 |
|---|---|
| Services billed | 12,133 across 87 procedure codes |
| Paid by Medicare | $483,424 |
Part D prescriptions in 2024
| Prescriptions (claims) | 10,752 · 28,742 30-day fills |
|---|---|
| Patients | 1,151 |
| Total drug cost | $1,180,314 |
| Generic share | 86% of claims |
Education and affiliations
| Medical school | Northwestern University Feinberg Medical School |
|---|---|
| Graduation year | 1991 |
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Millennium Physician Group LLCJacksonville, FL · 982 clinicians
Hospital affiliations
- Lee Memorial HospitalFort Myers, FL
- Naples Community HospitalNaples, FL
- Northshore University Healthsystem - Evanston HospitalEvanston, IL
- Physicians Regional Medical Center - Pine RidgeNaples, FL
Other facilities
- Empath Home HealthHome health agency · Fort Myers, FL
- Patients First Home Care LLCHome health agency · Sarasota, FL
- Pinnacle Home CareHome health agency · Fort Myers, FL
- Preferred Care Home Health ServicesHome health agency · Fort Myers, FL
- Trilogy Home HealthcareHome health agency · Estero, FL
- Avow Hospice IncHospice · Naples, FL
Industry payments (Open Payments)
- 2025$1,195 · 66 payments from 12 companies
- 2024$1,055 · 61 payments from 12 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novo Nordisk Inc | $260.24 | 12 |
| Astrazeneca Pharmaceuticals LP | $245.60 | 18 |
| Pfizer Inc. | $233.37 | 12 |
| Novartis Pharmaceuticals Corporation | $112.69 | 6 |
| Amgen Inc. | $107.05 | 6 |
What the 2025 payments were for
- Food and Beverage$1,195 · 66 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 317 internal medicine physicians in Naples · All internal medicine physicians in Florida