Sean Michael Arrieta Villaflores, MD
NPI 1821678962ActiveIndividual· Internal Medicine· Richmond Heights, MO
Internal Medicine (MD) with Physical Therapy Spine and Sports Medicine LLC and 1 other group, practicing in Richmond Heights, Missouri. Their prescriptions cost Medicare Part D more than their services did: $144,627 for 1,752 claims, against $17,637 paid for services in 2024. Lilly USA, LLC was the largest of 9 companies reporting payments in 2025, $428.05 in all, mostly food and beverage. Lists Barnes Jewish Hospital and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1821678962 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 13, 2021 |
| Last updated in NPPES | Aug 22, 2024 |
| Certified by provider | Aug 22, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 2024030784 | 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 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 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 | 84 |
|---|---|
| Services billed | 350 across 39 procedure codes |
| Paid by Medicare | $17,637 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,752 · 3,459 30-day fills |
|---|---|
| Patients | 534 |
| Total drug cost | $144,627 |
| Generic share | 87% of claims |
Education and affiliations
| Graduation year | 2018 |
|---|---|
| Medicare specialty | Internal Medicine |
Medical groups
- Physical Therapy Spine and Sports Medicine LLCBallwin, MO · 129 clinicians
- American Multispecialty Group IncSaint Charles, MO · 116 clinicians
Hospital affiliations
- Barnes Jewish HospitalSaint Louis, MO
- Mercy Hospital St LouisSaint Louis, MO
- Missouri Baptist Medical CenterSaint Louis, MO
- Ssm Health St Mary's Hospital - St LouisSaint Louis, MO
- St Lukes HospitalChesterfield, MO
Other facilities
- Amedisys Home Health of MissouriHome health agency · Hillsboro, MO
- Ssm Health Rehabilitation HospitalInpatient rehabilitation facility · Richmond Heights, MO
Industry payments (Open Payments)
- 2025$428.05 · 23 payments from 9 companies
- 2024$136.56 · 7 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Lilly USA, LLC | $140.13 | 7 |
| Novo Nordisk Inc | $89.70 | 5 |
| Amgen Inc. | $48.56 | 3 |
| Exact Sciences Corporation | $45.35 | 2 |
| Pfizer Inc. | $37.29 | 2 |
What the 2025 payments were for
- Food and Beverage$428.05 · 23 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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