Tammy Watz
NPI 1780795658ActiveIndividual· Nurse Practitioner· Sullivan, MO
Nurse Practitioner in Sullivan, Missouri, trained at University of Missouri St Louis - School of Optometry (class of 1997). Their prescriptions cost Medicare Part D more than their services did: $428,487 for 5,372 claims, against $835.17 paid for services in 2024. Abbvie Inc. was the largest of 18 companies reporting payments in 2025, $679.40 in all, mostly food and beverage.
Overview
| NPI | 1780795658 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Sole proprietor | No |
| NPI issued | Aug 31, 2006 |
| Last updated in NPPES | Aug 19, 2014 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner Primary | 363L00000X | RN089912 | 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 - Nurse Practitioner (MO) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 22 |
|---|---|
| Services billed | 25 across 4 procedure codes |
| Paid by Medicare | $835.17 |
Part D prescriptions in 2024
| Prescriptions (claims) | 5,372 · 10,596 30-day fills |
|---|---|
| Patients | 545 |
| Total drug cost | $428,487 |
| Generic share | 86% of claims |
Education and affiliations
| Medical school | University of Missouri St Louis - School of Optometry |
|---|---|
| Graduation year | 1997 |
| Medicare specialty | Nurse Practitioner |
Medical group
- Mercy Clinic East CommunitiesSaint Louis, MO · 571 clinicians
Hospital affiliation
- Mercy Hospital WashingtonWashington, MO
Industry payments (Open Payments)
- 2025$679.40 · 41 payments from 18 companies
- 2024$791.71 · 39 payments from 14 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $269.36 | 19 |
| Pfizer Inc. | $63.63 | 3 |
| Glaxosmithkline, LLC. | $43.33 | 3 |
| Exact Sciences Corporation | $35.42 | 2 |
| Radius Health, Inc. | $30.70 | 1 |
What the 2025 payments were for
- Food and Beverage$679.40 · 41 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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