Margaret Reiker
NPI 1902915853ActiveIndividual· Internal Medicine· Saint Louis, MO
Internal Medicine in Saint Louis, Missouri, trained at Saint Louis University School of Medicine (class of 1993). Their prescriptions cost Medicare Part D more than their services did: $920,493 for 13,077 claims, against $107,475 paid for services in 2024. Abbvie Inc. was the largest of 23 companies reporting payments in 2025, $1,804 in all, mostly food and beverage.
Overview
| NPI | 1902915853 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Sole proprietor | No |
| NPI issued | Aug 30, 2006 |
| Last updated in NPPES | Dec 19, 2013 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 103304 | 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 | 451 |
|---|---|
| Services billed | 1,316 across 37 procedure codes |
| Paid by Medicare | $107,475 |
Part D prescriptions in 2024
| Prescriptions (claims) | 13,077 · 29,652 30-day fills |
|---|---|
| Patients | 913 |
| Total drug cost | $920,493 |
| Generic share | 89% of claims |
Education and affiliations
| Medical school | Saint Louis University School of Medicine |
|---|---|
| Graduation year | 1993 |
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical groups
- Mercy Clinic East CommunitiesSaint Louis, MO · 571 clinicians
- Aging Well Health Care, LLCSaint Louis, MO · 238 clinicians
- Mercy Hospitals East CommunitiesSaint Louis, MO · 98 clinicians
- Elite Physical Therapy of Creve Coeur LLCCreve Coeur, MO · 91 clinicians
Hospital affiliations
- Barnes Jewish HospitalSaint Louis, MO
- Mercy Hospital SouthSaint Louis, MO
- Mercy Hospital St LouisSaint Louis, MO
- Missouri Baptist Medical CenterSaint Louis, MO
- St Lukes HospitalChesterfield, MO
Other facilities
- Mercy Home HealthHome health agency · Saint Louis, MO
- Mercy HospiceHospice · Saint Louis, MO
- Ssm Health Rehabilitation HospitalInpatient rehabilitation facility · Richmond Heights, MO
Industry payments (Open Payments)
- 2025$1,804 · 102 payments from 23 companies
- 2024$1,297 · 79 payments from 17 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $355.06 | 20 |
| Lilly USA, LLC | $243.88 | 12 |
| Amgen Inc. | $168.56 | 10 |
| Novo Nordisk Inc | $156.61 | 9 |
| Pfizer Inc. | $150.23 | 13 |
What the 2025 payments were for
- Food and Beverage$1,804 · 102 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 1,092 internal medicine physicians in Saint Louis · All internal medicine physicians in Missouri