Doctor profile · Federal record
Dr. Mazen Shobassy, MD
Gastroenterology Physician (CMS: Gastroenterology) · Marble Falls, TX
- NPI 1417290115
- Accepts Medicare
- 13 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
800 W Highway 71
Marble Falls, TX 78654
(830) 201-7100
fax (830) 201-7304 - Additional location
-
2301 Holmes St
Kansas City, MO 641082640
(816) 404-4175
fax (816) 404-0003 - Mailing address
-
Po Box 844658
Dallas, TX 752844658
Credentials & registration
- NPI registered
- April 2013 — 13 yrs on file
- Profile last updated
- October 16, 2020
- Year of graduation
- 2013 — 13 yrs since
- Specialty taxonomy
- 207RG0100X — NUCC code
- State license (1)
- Texas #Q8150
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1417290115. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
965
Distinct HCPCS
10
Medicare allowed
$115,622
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99204 |
New patient office or other outpatient visit, 45-59 minutes | 200 | 200 | $127 | |
45385 |
Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 193 | 191 | $236 | |
45380 |
Biopsy of large bowel using a flexible endoscope | 187 | 184 | $42 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 168 | 143 | $93 | |
43239 |
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 110 | 107 | $65 | |
G0121 |
Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk | 30 | 30 | $174 | |
99203 |
New patient office or other outpatient visit, 30-44 minutes | 21 | 21 | $78 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 19 | 18 | $167 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 13 | 13 | $125 | |
43235 |
Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 12 | 12 | $87 |
In context: peer comparison
Among 2 peers in Marble Falls Gastroenterology Physician, average services per provider: 81. This provider delivers 12× the peer median.Open Payments
Industry payments received
All-time total
$22
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Coloplast Corp | 1 | $21.64 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
1,015
Patients
541
Total drug cost
$159,376
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Pantoprazole Sodium | Generic | 254 | 92 | $4,383 |
| Omeprazole | Generic | 219 | 69 | $4,634 |
| Ondansetron Hcl | Generic | 172 | 168 | $207 |
| Sutab (Sod Sulf/Pot Chloride/Mag Sulf) | Brand | 136 | 134 | $22,512 |
| Colestipol Hcl | Generic | 34 | 12 | $1,499 |
| Sulfasalazine | Generic | 29 | 0 | $550 |
| Gavilyte-G (Peg3350/Sod Sulf,Bicarb,Cl/Kcl) | Brand | 28 | 28 | $578 |
| Sod Sulf-Potass Sulf-Mag Sulf (Sodium, Potassium,Mag Sulfates) | Brand | 25 | 25 | $1,968 |
| Amitriptyline Hcl | Generic | 24 | 0 | $116 |
| Cholestyramine (Cholestyramine (With Sugar)) | Brand | 20 | 0 | $2,391 |
Hospital affiliations
Frequently asked questions
What is Dr. Mazen Shobassy's medical specialty?
Dr. Mazen Shobassy practices Gastroenterology Physician in Marble Falls, TX.
Where does Dr. Mazen Shobassy practice?
Dr. Mazen Shobassy practices at 800 W Highway 71, Marble Falls, TX 78654. Office phone: 8302017100.
What is Dr. Mazen Shobassy's NPI?
Dr. Mazen Shobassy's National Provider Identifier (NPI) is 1417290115, issued by NPPES.
Does Dr. Mazen Shobassy accept Medicare assignment?
Yes. Dr. Mazen Shobassy accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mazen Shobassy commonly perform?
Top Medicare-reported procedures in 2023: New patient office or other outpatient visit (HCPCS 99204); Removal of polyps or growths of large bowel using an endoscope with mechanical snare (HCPCS 45385); Biopsy of large bowel using a flexible endoscope (HCPCS 45380). Source: CMS Medicare Physician & Other Practitioners file.