Mazen Al-Asadi, MD
NPI 1598782682 · Gastroenterology Physician · Houston, TX
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mazen Al-Asadi, MD is a Gastroenterology Physician provider in Houston, TX (NPI 1598782682).
Provider details
- NPI number
- 1598782682
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- MD2026-0336 (NM)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
4 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
422 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Biopsy of Large Bowel Using a Flexible Endoscope45380 | 131 | $99 |
| Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare45385 | 78 | $251 |
| Subsequent Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes99231 | 51 | $50 |
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 35 | $93 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 31 | $77 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More |
Practice location
Mailing address
Additional practice locations (3)
- 2305 37th Ave SwMinot, ND 58701-7669Phone: (701) 418-8000
- 630 W Maple StFarmington, NM 87401-6113Phone: (505) 609-6349
- 1140 WestmontSuite 445Houston, TX 77015-4366Phone: (713) 455-1618Fax: (713) 455-1460
Registry dates
- Enumerated
- 2006-07-16
- Last updated
- 2026-04-29
- Certified
- 2026-04-29
Frequently asked questions
- What is Mazen Al-Asadi's NPI number?
- Mazen Al-Asadi's National Provider Identifier (NPI) is 1598782682, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mazen Al-Asadi's specialty?
- Mazen Al-Asadi is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Mazen Al-Asadi located?
- Mazen Al-Asadi's practice location on file with NPPES is 1515 Holcombe Blvd, Houston, TX 77030-4000.
- What is Mazen Al-Asadi's phone number?
- The practice phone number listed in the NPPES registry for Mazen Al-Asadi is (713) 792-6161.
- Does Mazen Al-Asadi accept Medicare?
- Mazen Al-Asadi is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mazen Al-Asadi's NPI active?
- Yes — Mazen Al-Asadi's NPI (1598782682) is active in the NPPES registry as of the last update on 2026-04-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.