Timothy James Kamerzell, MD, PHD
NPI 1518349109ActiveIndividual· Internal Medicine· Overland Park, KS
Internal Medicine (MD, PHD) in Overland Park, Kansas, trained at University of Kansas School of Med (Kc/Wich/Sal) (class of 2007). Their prescriptions cost Medicare Part D more than their services did: $1,105,472 for 12,052 claims, against $326,141 paid for services in 2024. Pfizer Inc. was the largest of 13 companies reporting payments in 2025, $510.07 in all, mostly food and beverage.
Overview
| NPI | 1518349109 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD, PHD |
| Sole proprietor | No |
| NPI issued | Jun 19, 2015 |
| Last updated in NPPES | Jun 4, 2018 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 94-09065 | 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 - Internal Medicine (KS) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 651 |
|---|---|
| Services billed | 8,448 across 70 procedure codes |
| Paid by Medicare | $326,141 |
Part D prescriptions in 2024
| Prescriptions (claims) | 12,052 · 29,762 30-day fills |
|---|---|
| Patients | 888 |
| Total drug cost | $1,105,472 |
| Generic share | 89% of claims |
Education and affiliations
| Medical school | University of Kansas School of Med (Kc/Wich/Sal) |
|---|---|
| Graduation year | 2007 |
| Medicare specialty | Internal Medicine |
Medical group
- Quivira Internal Medicine IncOverland Park, KS · 12 clinicians
Hospital affiliations
- Adventhealth Shawnee MissionShawnee Mission, KS
- Kansas City Orthopaedic InstituteLeawood, KS
- Menorah Medical CenterOverland Park, KS
- Overland Park Reg Med CtrOverland Park, KS
- University of Kansas HospitalKansas City, KS
Other facilities
- Adventhealth Home HealthHome health agency · Shawnee Mission, KS
- HCA Midwest Healthcare at HomeHome health agency · Overland Park, KS
- Interim Healthcare of Kansas CityHome health agency · Overland Park, KS
- Phoenix Home CareHome health agency · Overland Park, KS
- Saint Lukes Home CareHome health agency · Kansas City, MO
Industry payments (Open Payments)
- 2025$510.07 · 32 payments from 13 companies
- 2024$543.28 · 31 payments from 14 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Pfizer Inc. | $176.54 | 16 |
| Novo Nordisk Inc | $69.80 | 4 |
| Boston Scientific Corporation | $58.19 | 2 |
| Eisai Inc. | $33.56 | 1 |
| Abbvie Inc. | $27.87 | 1 |
What the 2025 payments were for
- Food and Beverage$510.07 · 32 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 139 internal medicine physicians in Overland Park · All internal medicine physicians in Kansas