Frederick Simon Isaak, M.D.
NPI 1639129281ActiveIndividual· Emergency Medicine· Dubuque, IA
Emergency Medicine (M.D.) in Dubuque, Iowa, trained at University of North Dakota School of Medicine (class of 1986). 47 Medicare patients in 2024, $4,080 paid; nearly all of their 122 Part D prescriptions were generic (91%). Pfizer Inc. reported $14.40 in payments in 2024, mostly food and beverage.
Overview
| NPI | 1639129281 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | May 12, 2006 |
| Last updated in NPPES | Apr 11, 2008 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Emergency Medicine Primary | 207P00000X | 28293 | IA |
| Preventive Medicine, Occupational Medicine | 2083X0100X | 28293 | IA |
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 - Family Practice (IA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 47 |
|---|---|
| Services billed | 101 across 32 procedure codes |
| Paid by Medicare | $4,080 |
Part D prescriptions in 2024
| Prescriptions (claims) | 122 · 129 30-day fills |
|---|---|
| Patients | 87 |
| Total drug cost | $1,307 |
| Generic share | 91% of claims |
Education and affiliations
| Medical school | University of North Dakota School of Medicine |
|---|---|
| Graduation year | 1986 |
| Medicare specialty | Family Practice |
Medical group
- Medical Associates Clinic P CDubuque, IA · 233 clinicians
Industry payments (Open Payments)
- 2024$14.40 · 1 payment from 1 company
Top paying companies in 2024
| Company | Amount | Payments |
|---|---|---|
| Pfizer Inc. | $14.40 | 1 |
What the 2024 payments were for
- Food and Beverage$14.40 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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