Doctor profile · Federal record
Dr. Sajid Zafar, M.D.
Gastroenterology Physician (CMS: Gastroenterology) · Chesterfield, MO
- NPI 1538274428
- Accepts Medicare
- MIPS 88.1 / 100 · 2023
- 36 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
224 S Woods Mill RD Ste 410
Chesterfield, MO 630173513
(636) 685-7795
fax (314) 590-5959 - Additional location
-
5551 Winghaven Blvd Ste 260
O Fallon, MO 633683630 - Mailing address
-
224 S Woods Mill RD Ste 410S
Chesterfield, MO 630173605
Credentials & registration
- NPI registered
- August 2006 — 20 yrs on file
- Profile last updated
- April 7, 2021
- Year of graduation
- 1990 — 36 yrs since
- Specialty taxonomy
- 207RG0100X — NUCC code
- State license (1)
- Missouri #101267
- Medicaid
- MO #209983238
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1538274428. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,251
Distinct HCPCS
10
Medicare allowed
$165,245
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 304 | 115 | $78 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 214 | 171 | $125 | |
45385 |
Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 169 | 167 | $243 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 121 | 117 | $171 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 108 | 108 | $164 | |
43239 |
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 95 | 91 | $78 | |
45380 |
Biopsy of large bowel using a flexible endoscope | 65 | 64 | $91 | |
43248 |
Insertion of guide wire with dilation of esophagus using a flexible endoscope | 44 | 43 | $137 | |
45378 |
Diagnostic exam of large bowel using a flexible endoscope | 42 | 41 | $174 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 40 | 38 | $89 |
In context: peer comparison
Among 7 peers in Chesterfield Gastroenterology Physician, average services per provider: 69. This provider delivers 18× the peer median.Open Payments
Industry payments received
All-time total
$574
Transactions
6
Manufacturers
6
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Ipsen Biopharmaceuticals, INC | 1 | $149.97 | |
| Phathom Pharmaceuticals, INC. | 1 | $116.72 | |
| Qol Medical, LLC | 1 | $111.78 | |
| Pfizer INC. | 1 | $110.95 | |
| Medtronic, INC. | 1 | $64.37 | |
| Regeneron Healthcare Solutions, INC. | 1 | $20.59 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
839
Patients
500
Total drug cost
$152,778
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Sod Sulf-Potass Sulf-Mag Sulf (Sodium, Potassium,Mag Sulfates) | Brand | 337 | 324 | $26,049 |
| Pantoprazole Sodium | Generic | 136 | 63 | $2,229 |
| Omeprazole | Generic | 110 | 49 | $2,025 |
| Mesalamine | Generic | 38 | 0 | $35,225 |
| Colestipol Hcl | Generic | 27 | 0 | $4,416 |
| Suprep (Sodium, Potassium,Mag Sulfates) | Brand | 27 | 27 | $2,836 |
| Clenpiq (Sod Picosulf/Mag Ox/Citric Ac) | Brand | 25 | 25 | $4,207 |
| Cholestyramine (Cholestyramine (With Sugar)) | Brand | 24 | 12 | $2,194 |
| Linzess (Linaclotide) | Brand | 23 | 0 | $23,779 |
| Famotidine | Generic | 18 | 0 | $256 |
Frequently asked questions
What is Dr. Sajid Zafar's medical specialty?
Dr. Sajid Zafar practices Gastroenterology Physician in Chesterfield, MO.
Where does Dr. Sajid Zafar practice?
Dr. Sajid Zafar practices at 224 S Woods Mill RD Ste 410, Chesterfield, MO 630173513. Office phone: 6366857795.
What is Dr. Sajid Zafar's NPI?
Dr. Sajid Zafar's National Provider Identifier (NPI) is 1538274428, issued by NPPES.
Does Dr. Sajid Zafar accept Medicare assignment?
Yes. Dr. Sajid Zafar accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Sajid Zafar 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 99214); Removal of polyps or growths of large bowel using an endoscope with mechanical snare (HCPCS 45385). Source: CMS Medicare Physician & Other Practitioners file.