Doctor profile · Federal record

Dr. Bassem Mazloum, M.D.

Specialist (CMS: Gastroenterology) · San Antonio, TX

  • NPI 1154374742
  • Accepts Medicare
  • MIPS 77.4 / 100 · 2023
  • 39 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
8550 Datapoint Dr, Suite 200
San Antonio, TX 782293270
(210) 615-8308
fax (210) 615-8313

Credentials & registration

NPPES · NUCC
NPI registered
May 2006 — 20 yrs on file
Profile last updated
October 29, 2015
Year of graduation
1987 — 39 yrs since
Specialty taxonomy
174400000X — NUCC code
State license (1)
Texas #J3156
Medicaid
TX #135784008

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1154374742. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,145
Distinct HCPCS
10
Medicare allowed
$102,964
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 333 207 $122
88305 Pathology examination of tissue using a microscope, intermediate complexity 306 95 $33
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 69 65 $78
99443 Telephone medical discussion with physician, 21-30 minutes 61 53 $103
45380 Biopsy of large bowel using a flexible endoscope 60 60 $166
88342 Special stained specimen slides to examine tissue, initial procedure 60 57 $62
99203 New patient office or other outpatient visit, 30-44 minutes 49 49 $107
88341 Special stained specimen slides to examine tissue, each additional procedure 29 20 $55
91065 Measurement of hydrogen in breath to test for stomach and bowel symptoms 27 25 $80
88313 Special stained specimen slides to examine tissue including interpretation and report 26 18 $66

In context: peer comparison

Among 17 peers in San Antonio Specialist, average services per provider: 185. This provider delivers 6.2× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$52
Transactions
3
Manufacturers
2
Payer (manufacturer) Industry Txns Amount
Aimmune Therapeutics, INC. 2 $32.70
Salix Pharmaceuticals, A Division of Bausch Health US, LLC 1 $19.64

By nature of payment

Food and Beverage
$52

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
2,463
Patients
714
Total drug cost
$455,836
Drug Type Claims Patients Total cost
Pantoprazole Sodium Generic 669 146 $9,397
Famotidine Generic 628 159 $14,313
Esomeprazole Magnesium Generic 189 46 $7,145
Dexlansoprazole Dr (Dexlansoprazole) Brand 168 36 $70,742
Dicyclomine Hcl Generic 119 36 $3,350
Bethanechol Chloride Generic 116 36 $9,913
Linzess (Linaclotide) Brand 116 32 $98,137
Sod Sulf-Potass Sulf-Mag Sulf (Sodium, Potassium,Mag Sulfates) Brand 108 104 $8,403
Omeprazole Generic 92 25 $1,602
Dexilant (Dexlansoprazole) Brand 60 0 $29,963

Frequently asked questions

Auto-generated from federal data
What is Dr. Bassem Mazloum's medical specialty?
Dr. Bassem Mazloum practices Specialist in San Antonio, TX.
Where does Dr. Bassem Mazloum practice?
Dr. Bassem Mazloum practices at 8550 Datapoint Dr, San Antonio, TX 782293270. Office phone: 2106158308.
What is Dr. Bassem Mazloum's NPI?
Dr. Bassem Mazloum's National Provider Identifier (NPI) is 1154374742, issued by NPPES.
Does Dr. Bassem Mazloum accept Medicare assignment?
Yes. Dr. Bassem Mazloum accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Bassem Mazloum commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Pathology examination of tissue using a microscope, intermediate complexity (HCPCS 88305); Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (HCPCS 43239). Source: CMS Medicare Physician & Other Practitioners file.