Steven Kalfus, NP
NPI 1801938865ActiveIndividual· Nurse Practitioner· Chandler, AZ
Nurse Practitioner (NP) with Reddy Gi Associates, practicing in Chandler, Arizona. Their prescriptions cost Medicare Part D more than their services did: $1,046,929 for 2,244 claims, against $24,292 paid for services in 2024. Ipsen Biopharmaceuticals, Inc was the largest of 22 companies reporting payments in 2025, $3,587 in all, mostly food and beverage. Lists Huhu Kam Memorial Hospital as a hospital affiliation.
Overview
| NPI | 1801938865 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | NP |
| Sole proprietor | No |
| NPI issued | Feb 13, 2007 |
| Last updated in NPPES | Mar 20, 2020 |
| Certified by provider | Mar 20, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner Primary | 363L00000X | AP1375 | AZ |
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 (AZ) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 185 |
|---|---|
| Services billed | 399 across 10 procedure codes |
| Paid by Medicare | $24,292 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,244 · 3,632 30-day fills |
|---|---|
| Patients | 505 |
| Total drug cost | $1,046,929 |
| Generic share | 79% of claims |
Education and affiliations
| Graduation year | 2001 |
|---|---|
| Medicare specialty | Nurse Practitioner |
| Telehealth | Offers telehealth |
Medical group
- Reddy Gi AssociatesMesa, AZ · 18 clinicians
Hospital affiliation
- Huhu Kam Memorial HospitalSacaton, AZ
Industry payments (Open Payments)
- 2025$3,587 · 138 payments from 22 companies
- 2024$9,558 · 99 payments from 11 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Ipsen Biopharmaceuticals, Inc | $1,239 | 15 |
| Abbvie Inc. | $573.60 | 27 |
| Gilead Sciences, Inc. | $344.97 | 15 |
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | $232.32 | 20 |
| Madrigal Pharmaceuticals | $198.14 | 12 |
What the 2025 payments were for
- Food and Beverage$2,687 · 137 payments
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$900.00 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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