Joy A. Mok, RN, NP
NPI 1972693174ActiveIndividual· Nurse Practitioner· Houston, TX
Nurse Practitioner (RN, NP) with Physicians Referral Service, practicing in Houston, Texas. Mostly services rather than prescriptions: Medicare paid $3,541 for 32 patients in 2024, with only 44 Part D claims. Astellas Pharma US Inc was the largest of 4 companies reporting payments in 2025, $150.04 in all, mostly food and beverage.
Overview
| NPI | 1972693174 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | RN, NP |
| Sole proprietor | No |
| NPI issued | Oct 16, 2006 |
| Last updated in NPPES | Jan 6, 2011 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner Primary | 363L00000X | 628090 | TX |
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 (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 32 |
|---|---|
| Services billed | 39 across 4 procedure codes |
| Paid by Medicare | $3,541 |
Part D prescriptions in 2024
| Prescriptions (claims) | 44 · 46 30-day fills |
|---|---|
| Patients | 18 |
| Total drug cost | $365.16 |
| Generic share | 98% of claims |
Education and affiliations
| Graduation year | 2000 |
|---|---|
| Medicare specialty | Nurse Practitioner |
Medical group
- Physicians Referral ServiceHouston, TX · 2,765 clinicians
Industry payments (Open Payments)
- 2025$150.04 · 5 payments from 4 companies
- 2024$240.44 · 7 payments from 5 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astellas Pharma US Inc | $59.00 | 2 |
| Takeda Pharmaceuticals U.S.A., Inc. | $33.30 | 1 |
| Syndax Pharmaceuticals, Inc. | $33.20 | 1 |
| Gamida Cell Inc. | $24.54 | 1 |
What the 2025 payments were for
- Food and Beverage$150.04 · 5 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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