Jacob T. Ark, M.D.
NPI 1891053716ActiveIndividual· Urology· Saint Louis, MO
Urology (M.D.) in Saint Louis, Missouri, trained at Vanderbilt University School of Medicine (class of 2012). Their prescriptions cost Medicare Part D more than their services did: $4,659,889 for 1,209 claims, against $513,263 paid for services in 2024. Dendreon Pharmaceuticals LLC was the largest of 20 companies reporting payments in 2025, $1,666 in all, mostly food and beverage.
Overview
| NPI | 1891053716 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Apr 28, 2012 |
| Last updated in NPPES | Dec 1, 2021 |
| Certified by provider | Dec 1, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Urology Primary | 208800000X | 36145240 | IL |
| Urology | 208800000X | 2018009509 | MO |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Urology (IL); Practitioner - Urology (MO) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 609 |
|---|---|
| Services billed | 12,936 across 80 procedure codes |
| Paid by Medicare | $513,263 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,209 · 2,070 30-day fills |
|---|---|
| Patients | 261 |
| Total drug cost | $4,659,889 |
| Generic share | 59% of claims |
Education and affiliations
| Medical school | Vanderbilt University School of Medicine |
|---|---|
| Graduation year | 2012 |
| Medicare specialty | Urology |
| Telehealth | Offers telehealth |
Medical group
- Urology of St Louis IncSaint Peters, MO · 94 clinicians
Hospital affiliations
- Alton Memorial HospitalAlton, IL
- Hshs St Elizabeth's HospitalO Fallon, IL
- Memorial HospitalBelleville, IL
- Missouri Baptist Medical CenterSaint Louis, MO
- St Josephs HospitalBreese, IL
Industry payments (Open Payments)
- 2025$1,666 · 70 payments from 20 companies
- 2024$1,411 · 61 payments from 22 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Dendreon Pharmaceuticals LLC | $282.24 | 14 |
| Urogen Pharma, Inc. | $235.15 | 5 |
| Sumitomo Pharma America, Inc. | $214.88 | 11 |
| Bayer Healthcare Pharmaceuticals Inc. | $145.54 | 8 |
| Janssen Biotech, Inc. | $135.65 | 1 |
What the 2025 payments were for
- Food and Beverage$1,638 · 68 payments
- Education$27.91 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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