Mazen Ahmad Abu Hatab, MD
NPI 1821173121ActiveIndividual· Internal Medicine, Nephrology· Knoxville, TN
Internal Medicine, Nephrology (MD) in Knoxville, Tennessee, licensed in TN, with an NPI issued in October 2006. Their prescriptions cost Medicare Part D more than their services did: $68,226 for 2,032 claims, against $34,695 paid for services in 2024. Novo Nordisk Inc was the largest of 2 companies reporting payments in 2025, $26.22 in all, mostly food and beverage. Lists Blount Memorial Hospital and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1821173121 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Oct 26, 2006 |
| Last updated in NPPES | Jul 8, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | MD28777 | TN |
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 - Nephrology (TN) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 125 |
|---|---|
| Services billed | 416 across 12 procedure codes |
| Paid by Medicare | $34,695 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,032 · 5,033 30-day fills |
|---|---|
| Patients | 193 |
| Total drug cost | $68,226 |
| Generic share | 95% of claims |
Education and affiliations
| Graduation year | 1983 |
|---|---|
| Medicare specialty | Nephrology |
Hospital affiliations
- Blount Memorial HospitalMaryville, TN
- Parkwest Medical CenterKnoxville, TN
- Physicians Regional Medical CenterPowell, TN
Industry payments (Open Payments)
- 2025$26.22 · 2 payments from 2 companies
- 2024$28.27 · 4 payments from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novo Nordisk Inc | $24.56 | 1 |
| Travere Therapeutics, Inc. | $1.66 | 1 |
What the 2025 payments were for
- Food and Beverage$24.56 · 1 payment
- Education$1.66 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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