Doctor profile · Federal record
Dr. Nizar Hallak, M.D.
Gastroenterology Physician (CMS: Gastroenterology) · Internal Medicine Physician · Gastroenterology Physician · Gastroenterology Physician · Gastroenterology Physician · Columbia, SC
- NPI 1861627697
- Accepts Medicare
- MIPS 93.4 / 100 · 2023
- 21 yrs in practice
- Licensed in 4 states
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 3 locations .
- Primary practice
-
3 Richland Medical Park Dr Ste 120
Columbia, SC 292036850
(803) 434-8866
fax (803) 256-0397 - Additional location
-
123 Medical Center Dr
Brunswick, ME 040112652
(207) 406-7300
fax (207) 835-4736 - Additional location
-
360 Broadway Ste 100
Bangor, ME 044013985
(207) 907-3550
fax (207) 907-3562 - Mailing address
-
Po Box 743904
Atlanta, GA 303743904
Credentials & registration
- NPI registered
- May 2009 — 17 yrs on file
- Profile last updated
- April 2, 2024
- Year of graduation
- 2005 — 21 yrs since
- Specialty taxonomy
- 207RG0100X — NUCC code
- State licenses (5)
- South Carolina #51592 · Wisconsin #53079-020 · Florida #ME163699 · Wisconsin #53079 · Maine #MD22357
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1861627697. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
499
Distinct HCPCS
10
Medicare allowed
$70,498
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 150 | 145 | $125 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 94 | 94 | $167 | |
43239 |
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 78 | 78 | $96 | |
43246 |
Insertion of stomach tube using a flexible endoscope | 42 | 41 | $190 | |
45385 |
Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 35 | 35 | $225 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 26 | 22 | $76 | |
43235 |
Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 23 | 22 | $106 | |
45378 |
Diagnostic exam of large bowel using a flexible endoscope | 21 | 21 | $175 | |
45380 |
Biopsy of large bowel using a flexible endoscope | 19 | 19 | $135 | |
43255 |
Control of bleeding of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 11 | 11 | $181 |
In context: peer comparison
Among 12 peers in Columbia Gastroenterology Physician, average services per provider: 66. This provider delivers 7.6× the peer median.Open Payments
Industry payments received
All-time total
$104
Transactions
2
Manufacturers
2
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Boston Scientific Corporation | 1 | $83.21 | |
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | 1 | $20.39 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
137
Patients
77
Total drug cost
$20,646
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Gavilyte-G (Peg3350/Sod Sulf,Bicarb,Cl/Kcl) | Brand | 47 | 46 | $785 |
| Pantoprazole Sodium | Generic | 45 | 18 | $755 |
| Linzess (Linaclotide) | Brand | 32 | 0 | $18,839 |
| Peg-3350 and Electrolytes (Peg3350/Sod Sulf,Bicarb,Cl/Kcl) | Brand | 13 | 13 | $268 |
Hospital affiliations
Frequently asked questions
What is Dr. Nizar Hallak's medical specialty?
Dr. Nizar Hallak practices Gastroenterology Physician in Columbia, SC.
Where does Dr. Nizar Hallak practice?
Dr. Nizar Hallak practices at 3 Richland Medical Park Dr Ste 120, Columbia, SC 292036850. Office phone: 8034348866.
What is Dr. Nizar Hallak's NPI?
Dr. Nizar Hallak's National Provider Identifier (NPI) is 1861627697, issued by NPPES.
Does Dr. Nizar Hallak accept Medicare assignment?
Yes. Dr. Nizar Hallak accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Nizar Hallak commonly perform?
Top Medicare-reported procedures in 2023: Initial hospital care with straightforward or low-level medical decision making (HCPCS 99222); Initial hospital care with moderate level of medical decision making (HCPCS 99223); Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (HCPCS 43239). Source: CMS Medicare Physician & Other Practitioners file.