Richard T. Shimizu, MD
NPI 1164466645ActiveIndividual· Internal Medicine· Springfield, MO
Internal Medicine (MD) in Springfield, Missouri, trained at University of Virginia School of Medicine (class of 1995). Their prescriptions cost Medicare Part D more than their services did: $592,486 for 7,619 claims, against $74,053 paid for services in 2024. Genzyme Corporation was the largest of 5 companies reporting payments in 2025, $162.08 in all, mostly food and beverage.
Overview
| NPI | 1164466645 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 15, 2006 |
| Last updated in NPPES | Jul 5, 2012 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 115271 | MO |
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 | 196 |
|---|---|
| Services billed | 7,882 across 83 procedure codes |
| Paid by Medicare | $74,053 |
Part D prescriptions in 2024
| Prescriptions (claims) | 7,619 · 17,408 30-day fills |
|---|---|
| Patients | 453 |
| Total drug cost | $592,486 |
| Generic share | 88% of claims |
Education and affiliations
| Medical school | University of Virginia School of Medicine |
|---|---|
| Graduation year | 1995 |
| Medicare specialty | Internal Medicine |
Medical group
- Lester E Cox Medical CentersSpringfield, MO · 232 clinicians
Hospital affiliations
- Cox Medical CentersSpringfield, MO
- Cox Monett HospitalMonett, MO
Other facilities
- Coxhealth at HomeHome health agency · Springfield, MO
Industry payments (Open Payments)
- 2025$162.08 · 8 payments from 5 companies
- 2024$1,247 · 70 payments from 13 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Genzyme Corporation | $65.39 | 3 |
| Abbott Laboratories | $48.63 | 2 |
| Glaxosmithkline, LLC. | $17.34 | 1 |
| Lilly USA, LLC | $17.09 | 1 |
| Astrazeneca Pharmaceuticals LP | $13.63 | 1 |
What the 2025 payments were for
- Food and Beverage$162.08 · 8 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other internal medicine physicians in Springfield
- 1013950070
- 1124607858
- 1184121998
- 1184666117
- 1205849569
- 1215314422
- 1245243005
- 1275502379
- 1326082124
- 1336602713
- 1346306115
- 1356441851
All 155 internal medicine physicians in Springfield · All internal medicine physicians in Missouri