Richard J. Kozeny Jr., MD
NPI 1255319810ActiveIndividual· Internal Medicine· Chesterfield, MO
Internal Medicine (MD) in Chesterfield, Missouri, trained at Medical College of Wisconsin (class of 1995). Their prescriptions cost Medicare Part D more than their services did: $1,013,957 for 14,264 claims, against $101,994 paid for services in 2024. Amgen Inc. was the largest of 22 companies reporting payments in 2025, $2,376 in all, mostly food and beverage.
Overview
| NPI | 1255319810 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jan 4, 2006 |
| Last updated in NPPES | Jun 5, 2013 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 2012037325 | MO |
| Internal Medicine | 207R00000X | 34243 | 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 - Internal Medicine (MO) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 502 |
|---|---|
| Services billed | 1,561 across 15 procedure codes |
| Paid by Medicare | $101,994 |
Part D prescriptions in 2024
| Prescriptions (claims) | 14,264 · 34,795 30-day fills |
|---|---|
| Patients | 1,119 |
| Total drug cost | $1,013,957 |
| Generic share | 91% of claims |
Education and affiliations
| Medical school | Medical College of Wisconsin |
|---|---|
| Graduation year | 1995 |
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical groups
- Aging Well Health Care, LLCSaint Louis, MO · 238 clinicians
- Arnold Physical Therapy and Sports Medicine LLCSaint Louis, MO · 83 clinicians
- Chesterfield Internal Medicine and Rheumatology, LLCChesterfield, MO · 8 clinicians
Hospital affiliations
- Barnes Jewish HospitalSaint Louis, MO
- Barnes-Jewish West County HospitalCreve Coeur, MO
- Mercy Hospital St LouisSaint Louis, MO
- Ssm St Clare Health CenterFenton, MO
- St Lukes HospitalChesterfield, MO
Other facilities
- Aw Health CareHome health agency · Saint Louis, MO
- Elite Home HealthHome health agency · Creve Coeur, MO
- Mercy Home HealthHome health agency · Saint Louis, MO
- Premiere Home HealthHome health agency · Saint Charles, MO
- St Luke's Home Health ServicesHome health agency · Chesterfield, MO
- Ssm Health Rehabilitation HospitalInpatient rehabilitation facility · Richmond Heights, MO
Industry payments (Open Payments)
- 2025$2,376 · 146 payments from 22 companies
- 2024$2,212 · 133 payments from 24 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Amgen Inc. | $318.95 | 25 |
| Novartis Pharmaceuticals Corporation | $306.92 | 15 |
| Pfizer Inc. | $241.48 | 22 |
| Janssen Biotech, Inc. | $213.75 | 9 |
| Novo Nordisk Inc | $188.94 | 11 |
What the 2025 payments were for
- Food and Beverage$2,376 · 146 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 185 internal medicine physicians in Chesterfield · All internal medicine physicians in Missouri