Bassem Mazloum, M.D.
NPI 1154374742 · Specialist · San Antonio, TX
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Bassem Mazloum, M.D. is a Specialist provider in San Antonio, TX (NPI 1154374742).
Provider details
- NPI number
- 1154374742
- Entity type
- Individual
- Primary specialty
- SpecialistOther Service Providers
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- J3156 (TX)
Specialties & taxonomies
Other Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,675 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 314 | $121 |
| Chronic Care Management Services for Two Or More Chronic Conditions, Additional 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99439 | 308 | $46 |
| Pathology Examination of Tissue Using a Microscope, Intermediate Complexity88305 | 306 | $32 |
| Chronic Care Management Services, First 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99490 | 170 | $60 |
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 78 | $76 |
| Special Stained Specimen Slides to Examine Tissue, Initial Procedure |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 34 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Pantoprazole Sodium | 744 | 161 |
| Famotidine | 711 | 186 |
| Esomeprazole Magnesium | 199 | 55 |
| Bethanechol Chloride | 169 | 40 |
| Sodium, Potassium,mag Sulfatesbrand: Sod Sulf-Potass Sulf-Mag Sulf | 169 | 168 |
| Dexlansoprazolebrand: Dexlansoprazole Dr | 169 | 39 |
| Dicyclomine Hcl | 145 | 36 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$52 across 3 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-05-18
- Last updated
- 2015-10-29
Frequently asked questions
- What is Bassem Mazloum's NPI number?
- Bassem Mazloum's National Provider Identifier (NPI) is 1154374742, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Bassem Mazloum's specialty?
- Bassem Mazloum is listed in the NPPES registry with a primary specialty of Specialist (Other Service Providers).
- Where is Bassem Mazloum located?
- Bassem Mazloum's practice location on file with NPPES is 8550 Datapoint Dr, San Antonio, TX 78229-3270.
- What is Bassem Mazloum's phone number?
- The practice phone number listed in the NPPES registry for Bassem Mazloum is (210) 615-8308.
- Does Bassem Mazloum accept Medicare?
- Bassem Mazloum is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Bassem Mazloum's NPI active?
- Yes — Bassem Mazloum's NPI (1154374742) is active in the NPPES registry as of the last update on 2015-10-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.