Mark A. Leiker, M.D.
NPI 1881698348ActiveIndividual· Family Medicine· Wichita, KS
Family Medicine (M.D.) in Wichita, Kansas, trained at University of Kansas School of Med (Kc/Wich/Sal) (class of 1995). Their prescriptions cost Medicare Part D more than their services did: $1,098,649 for 11,081 claims, against $135,390 paid for services in 2024. Pfizer Inc. was the largest of 27 companies reporting payments in 2025, $2,945 in all, mostly food and beverage.
Overview
| NPI | 1881698348 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jun 11, 2005 |
| Last updated in NPPES | Oct 22, 2012 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | 04-26415 | KS |
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 - Family Practice (KS) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 435 |
|---|---|
| Services billed | 2,905 across 94 procedure codes |
| Paid by Medicare | $135,390 |
Part D prescriptions in 2024
| Prescriptions (claims) | 11,081 · 24,190 30-day fills |
|---|---|
| Patients | 705 |
| Total drug cost | $1,098,649 |
| Generic share | 86% of claims |
Education and affiliations
| Medical school | University of Kansas School of Med (Kc/Wich/Sal) |
|---|---|
| Graduation year | 1995 |
| Medicare specialty | Family Practice |
| Telehealth | Offers telehealth |
Medical group
- Primary Care Associates LLCWichita, KS · 13 clinicians
Other facilities
- Ascension at HomeHome health agency · Wichita, KS
- Home Health & Hospice of KansasHome health agency · Wichita, KS
- Phoenix Home CareHome health agency · Wichita, KS
- Specialized Home CareHome health agency · Wichita, KS
- Home Health & Hospice of KansasHospice · Wichita, KS
- Ascension Via Christi Rehabilitation Hospital, IncInpatient rehabilitation facility · Wichita, KS
Industry payments (Open Payments)
- 2025$2,945 · 309 payments from 27 companies
- 2024$3,077 · 284 payments from 29 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Pfizer Inc. | $384.67 | 56 |
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | $335.44 | 16 |
| Abbvie Inc. | $303.92 | 58 |
| Lilly USA, LLC | $267.31 | 20 |
| Astrazeneca Pharmaceuticals LP | $220.54 | 49 |
What the 2025 payments were for
- Food and Beverage$2,945 · 309 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 546 family medicine physicians in Wichita · All family medicine physicians in Kansas