Doctor profile · Federal record
Dr. Mazen Abu Hatab, MD
Nephrology Physician (CMS: Nephrology) · Knoxville, TN
- NPI 1821173121
- Accepts Medicare
- 43 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
8044 Ray Mears Blvd, Ste 116
Knoxville, TN 37919
(865) 692-9111
fax (865) 692-9191 - Mailing address
-
Po Box 32786
Knoxville, TN 37930
Credentials & registration
- NPI registered
- October 2006 — 20 yrs on file
- Profile last updated
- July 8, 2007
- Year of graduation
- 1983 — 43 yrs since
- Specialty taxonomy
- 207RN0300X — NUCC code
- State license (1)
- Tennessee #MD28777
- Medicaid
- TN #3827744
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1821173121. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
426
Distinct HCPCS
5
Medicare allowed
$36,914
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 177 | 48 | $74 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 150 | 92 | $83 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 51 | 48 | $121 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 30 | 21 | $111 | |
99203 |
New patient office or other outpatient visit, 30-44 minutes | 18 | 18 | $103 |
In context: peer comparison
Among 12 peers in Knoxville Nephrology Physician, average services per provider: 169. This provider delivers 2.5× the peer median.Open Payments
Industry payments received
All-time total
$28
Transactions
4
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Travere Therapeutics, INC. | 4 | $28.27 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
1,598
Patients
429
Total drug cost
$20,767
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Amlodipine Besylate | Generic | 197 | 55 | $1,055 |
| Furosemide | Generic | 180 | 48 | $717 |
| Calcitriol | Generic | 175 | 45 | $2,280 |
| Hydralazine Hcl | Generic | 168 | 56 | $2,718 |
| Potassium Chloride | Generic | 139 | 38 | $2,382 |
| Bumetanide | Generic | 135 | 38 | $4,061 |
| Allopurinol | Generic | 114 | 36 | $1,845 |
| Losartan Potassium | Generic | 111 | 29 | $1,150 |
| Carvedilol | Generic | 88 | 30 | $704 |
| Tamsulosin Hcl | Generic | 77 | 18 | $894 |
Hospital affiliations
Frequently asked questions
What is Dr. Mazen Abu Hatab's medical specialty?
Dr. Mazen Abu Hatab practices Nephrology Physician in Knoxville, TN.
Where does Dr. Mazen Abu Hatab practice?
Dr. Mazen Abu Hatab practices at 8044 Ray Mears Blvd, Knoxville, TN 37919. Office phone: 8656929111.
What is Dr. Mazen Abu Hatab's NPI?
Dr. Mazen Abu Hatab's National Provider Identifier (NPI) is 1821173121, issued by NPPES.
Does Dr. Mazen Abu Hatab accept Medicare assignment?
Yes. Dr. Mazen Abu Hatab accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mazen Abu Hatab commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Established patient office or other outpatient visit (HCPCS 99213); Initial hospital care with straightforward or low-level medical decision making (HCPCS 99222). Source: CMS Medicare Physician & Other Practitioners file.