Shannon McAllister Gregorek, NP-C
NPI 1790929099ActiveIndividual· Nurse Practitioner, Family· Houston, TX
Nurse Practitioner, Family (NP-C) with Privia Medical Group Gulf Coast PLLC, practicing in Houston, Texas. Their prescriptions cost Medicare Part D more than their services did: $1,397,197 for 3,041 claims, against $55,081 paid for services in 2024. Senseonics, Incorporated was the largest of 34 companies reporting payments in 2025, $3,340 in all, mostly food and beverage. Lists Memorial Hermann - Texas Medical Center as a hospital affiliation.
Overview
| NPI | 1790929099 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | NP-C |
| Sole proprietor | Yes |
| NPI issued | Apr 30, 2009 |
| Last updated in NPPES | Sep 14, 2026 |
| Certified by provider | Sep 14, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Family Primary | 363LF0000X | AP113691 | TX |
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 - Nurse Practitioner (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 148 |
|---|---|
| Services billed | 2,289 across 35 procedure codes |
| Paid by Medicare | $55,081 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,041 · 7,224 30-day fills |
|---|---|
| Patients | 259 |
| Total drug cost | $1,397,197 |
| Generic share | 54% of claims |
Education and affiliations
| Graduation year | 2004 |
|---|---|
| Medicare specialty | Nurse Practitioner |
| Telehealth | Offers telehealth |
Medical group
- Privia Medical Group Gulf Coast PLLCPearland, TX · 534 clinicians
Hospital affiliation
- Memorial Hermann - Texas Medical CenterHouston, TX
Industry payments (Open Payments)
- 2025$3,340 · 139 payments from 34 companies
- 2024$2,677 · 138 payments from 33 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Senseonics, Incorporated | $400.00 | 1 |
| Novo Nordisk Inc | $333.98 | 13 |
| Corcept Therapeutics | $273.30 | 14 |
| Novartis Pharmaceuticals Corporation | $206.46 | 9 |
| Cequr Corporation | $182.34 | 6 |
What the 2025 payments were for
- Food and Beverage$2,940 · 138 payments
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$400.00 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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