Doctor profile · Federal record
Dr. Maisa Nazzal, M.D.
Nephrology Physician (CMS: Nephrology) · Nephrology Physician · Nephrology Physician · Nephrology Physician · Saint Louis, MO
- NPI 1295991073
- Accepts Medicare
- 26 yrs in practice
- Licensed in 4 states
- Female
- Group practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
675 Old Ballas RD Ste 104
Saint Louis, MO 631417083
(314) 993-4949
fax (314) 993-4945 - Additional location
-
401 Corporate Park Dr
Clayton, MO 631054201
(636) 288-4149 - Mailing address
-
Po Box 315
Ballwin, MO 630220315
Credentials & registration
- NPI registered
- August 2008 — 18 yrs on file
- Profile last updated
- November 3, 2025
- Year of graduation
- 2000 — 26 yrs since
- Specialty taxonomy
- 207RN0300X — NUCC code
- State licenses (4)
- Missouri #2016012961 · Oklahoma #29008 · Illinois #036147677 · Arkansas #E7470
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1295991073. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
951
Distinct HCPCS
3
Medicare allowed
$107,144
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 607 | 125 | $116 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 207 | 70 | $124 | |
99221 |
Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes | 137 | 126 | $81 |
In context: peer comparison
Among 28 peers in Saint Louis Nephrology Physician, average services per provider: 96. This provider delivers 9.9× the peer median.Open Payments
Industry payments received
All-time total
$8
Transactions
3
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Travere Therapeutics, INC. | 3 | $8.12 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
1,260
Patients
342
Total drug cost
$186,391
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Furosemide | Generic | 170 | 50 | $926 |
| Bumetanide | Generic | 133 | 36 | $7,651 |
| Losartan Potassium | Generic | 116 | 31 | $1,281 |
| Amlodipine Besylate | Generic | 92 | 28 | $454 |
| Potassium Chloride | Generic | 92 | 33 | $2,007 |
| Calcitriol | Generic | 90 | 25 | $1,802 |
| Farxiga (Dapagliflozin Propanediol) | Brand | 89 | 16 | $61,858 |
| Jardiance (Empagliflozin) | Brand | 77 | 14 | $62,630 |
| Metoprolol Succinate | Generic | 67 | 23 | $1,177 |
| Hydralazine Hcl | Generic | 61 | 17 | $1,169 |
Frequently asked questions
What is Dr. Maisa Nazzal's medical specialty?
Dr. Maisa Nazzal practices Nephrology Physician in Saint Louis, MO.
Where does Dr. Maisa Nazzal practice?
Dr. Maisa Nazzal practices at 675 Old Ballas RD Ste 104, Saint Louis, MO 631417083. Office phone: 3149934949.
What is Dr. Maisa Nazzal's NPI?
Dr. Maisa Nazzal's National Provider Identifier (NPI) is 1295991073, issued by NPPES.
Does Dr. Maisa Nazzal accept Medicare assignment?
Yes. Dr. Maisa Nazzal accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Maisa Nazzal commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Established patient office or other outpatient visit (HCPCS 99214); Initial hospital care with straightforward or low level of medical decision making (HCPCS 99221). Source: CMS Medicare Physician & Other Practitioners file.