Doctor profile · Federal record
Dr. Mazen Al-Asadi, MD
Gastroenterology Physician (CMS: Gastroenterology) · Houston, TX
- NPI 1598782682
- Accepts Medicare
- MIPS 79.4 / 100 · 2023
- 38 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 3 locations .
- Primary practice
-
1515 Holcombe Blvd
Houston, TX 770304000
(713) 792-6161 - Additional location
-
2305 37Th Ave Sw
Minot, ND 587017669
(701) 418-8000 - Additional location
-
1140 Westmont, Suite 445
Houston, TX 770154366
(713) 455-1618
fax (713) 455-1460 - Mailing address
-
Po Box 4439
Houston, TX 772104439
Credentials & registration
- NPI registered
- July 2006 — 20 yrs on file
- Profile last updated
- February 10, 2026
- Year of graduation
- 1988 — 38 yrs since
- Specialty taxonomy
- 207RG0100X — NUCC code
- State license (1)
- Texas #L2783
- Medicaid (3)
- TX #145968708 · TX #145968707 · TX #178624601
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1598782682. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
399
Distinct HCPCS
10
Medicare allowed
$44,498
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
45380 |
Biopsy of large bowel using a flexible endoscope | 113 | 113 | $137 | |
99231 |
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 62 | 38 | $51 | |
45385 |
Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 41 | 41 | $256 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 37 | 33 | $80 | |
43239 |
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 33 | 33 | $91 | |
99221 |
Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes | 25 | 25 | $85 | |
99202 |
New patient office or other outpatient visit, 15-29 minutes | 24 | 24 | $49 | |
99203 |
New patient office or other outpatient visit, 30-44 minutes | 21 | 21 | $84 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 20 | 20 | $67 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 12 | 12 | $99 |
In context: peer comparison
Among 86 peers in this city , average services per provider: 77. This provider delivers 5.2× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
23
Patients
23
Total drug cost
$435
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Gavilyte-G (Peg3350/Sod Sulf,bicarb,cl/Kcl) | Brand | 23 | 23 | $435 |
Frequently asked questions
What is Dr. Mazen Al-Asadi's medical specialty?
Dr. Mazen Al-Asadi practices Gastroenterology Physician in Houston, TX.
Where does Dr. Mazen Al-Asadi practice?
Dr. Mazen Al-Asadi practices at 1515 Holcombe Blvd, Houston, TX 770304000. Office phone: 7137926161.
What is Dr. Mazen Al-Asadi's NPI?
Dr. Mazen Al-Asadi's National Provider Identifier (NPI) is 1598782682, issued by NPPES.
Does Dr. Mazen Al-Asadi accept Medicare assignment?
Yes. Dr. Mazen Al-Asadi accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mazen Al-Asadi commonly perform?
Top Medicare-reported procedures in 2023: Biopsy of large bowel using a flexible endoscope (HCPCS 45380); Subsequent hospital care with straightforward or low level of medical decision making (HCPCS 99231); Removal of polyps or growths of large bowel using an endoscope with mechanical snare (HCPCS 45385). Source: CMS Medicare Physician & Other Practitioners file.