Ellen C. Mullen, RN, ANP, GNP
NPI 1013098680ActiveIndividual· Nurse Practitioner· Houston, TX
Nurse Practitioner (RN, ANP, GNP) with Physicians Referral Service, practicing in Houston, Texas. Their prescriptions cost Medicare Part D more than their services did: $60,839 for 104 claims, against $23,138 paid for services in 2024. Incyte Corporation was the largest of 9 companies reporting payments in 2025, $521.63 in all, mostly food and beverage.
Overview
| NPI | 1013098680 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | RN, ANP, GNP |
| Sole proprietor | No |
| NPI issued | Oct 18, 2006 |
| Last updated in NPPES | Jan 12, 2023 |
| Certified by provider | Jan 12, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner Primary | 363L00000X | AP110331 | TX |
| Nurse Practitioner, Adult Health | 363LA2200X | 613628 | TX |
| Nurse Practitioner, Gerontology | 363LG0600X | 613628 | 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 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 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 | 307 |
|---|---|
| Services billed | 396 across 8 procedure codes |
| Paid by Medicare | $23,138 |
Part D prescriptions in 2024
| Prescriptions (claims) | 104 · 120 30-day fills |
|---|---|
| Patients | 69 |
| Total drug cost | $60,839 |
| Generic share | 89% of claims |
Education and affiliations
| Graduation year | 2001 |
|---|---|
| Medicare specialty | Nurse Practitioner |
| Telehealth | Offers telehealth |
Medical group
- Physicians Referral ServiceHouston, TX · 2,765 clinicians
Industry payments (Open Payments)
- 2025$521.63 · 12 payments from 9 companies
- 2024$384.27 · 11 payments from 8 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Incyte Corporation | $178.94 | 4 |
| Adc Therapeutics America, Inc. | $124.95 | 1 |
| Janssen Biotech, Inc. | $37.85 | 1 |
| Karyopharm Therapeutics Inc. | $34.39 | 1 |
| Sobi, Inc | $34.21 | 1 |
What the 2025 payments were for
- Food and Beverage$426.63 · 11 payments
- Education$95.00 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Nurse Practitioner providers in Houston
- 1750101150
- 1841830445
- 1376416289
- 1346254653
- 1861368326
- 1710857610
- 1437490885
- 1720375777
- 1639403793
- 1689508996
- 1851522940
- 1730913245