Doctor profile · Federal record

Dr. Mahmoud Gaballa, M.D.

Hematology & Oncology Physician (CMS: Hematology/Oncology) · Houston, TX

  • NPI 1992096135
  • Accepts Medicare
  • 19 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1515 Holcombe Blvd
Houston, TX 770304000
(713) 792-6161
Mailing address
P O Box 4439
Houston, TX 772104439

Credentials & registration

NPPES · NUCC
NPI registered
April 2011 — 15 yrs on file
Profile last updated
December 29, 2022
Year of graduation
2007 — 19 yrs since
Specialty taxonomy
207RH0003X — NUCC code
State license (1)
Texas #U0588

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1992096135. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
535
Distinct HCPCS
7
Medicare allowed
$67,734
HCPCS Description Services Patients Avg allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 224 63 $120
99215 Established patient office or other outpatient visit, 40-54 minutes 122 71 $145
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 71 29 $80
99205 New patient office or other outpatient visit, 60-74 minutes 41 41 $181
99239 Hospital discharge day management, more than 30 minutes 28 27 $116
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 25 24 $176
99214 Established patient office or other outpatient visit, 30-39 minutes 24 18 $99

In context: peer comparison

Among 79 peers in this city , average services per provider: 1,097. This provider delivers 0.5× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$991
Transactions
6
Manufacturers
4
Payer (manufacturer) Industry Txns Amount
GENZYME CORPORATION 2 $750.00
Janssen Biotech, Inc. 2 $93.92
Legend Biotech USA Inc. 1 $86.81
AstraZeneca Pharmaceuticals LP 1 $60.00

By nature of payment

Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program
$750
Food and Beverage
$241

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
226
Patients
60
Total drug cost
$1,183,931
Drug Type Claims Patients Total cost
Valacyclovir (Valacyclovir Hcl) Brand 58 19 $1,903
Eliquis (Apixaban) Brand 32 13 $20,541
Revlimid (Lenalidomide) Brand 27 13 $504,458
Pantoprazole Sodium Generic 26 0 $357
Dexamethasone Generic 25 15 $386
Pomalyst (Pomalidomide) Brand 19 0 $404,274
Lenalidomide Generic 17 0 $251,840
Atorvastatin Calcium Generic 11 0 $122
Famotidine Generic 11 0 $51

Frequently asked questions

Auto-generated from federal data
What is Dr. Mahmoud Gaballa's medical specialty?
Dr. Mahmoud Gaballa practices Hematology & Oncology Physician in Houston, TX.
Where does Dr. Mahmoud Gaballa practice?
Dr. Mahmoud Gaballa practices at 1515 Holcombe Blvd, Houston, TX 770304000. Office phone: 7137926161.
What is Dr. Mahmoud Gaballa's NPI?
Dr. Mahmoud Gaballa's National Provider Identifier (NPI) is 1992096135, issued by NPPES.
Does Dr. Mahmoud Gaballa accept Medicare assignment?
Yes. Dr. Mahmoud Gaballa accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mahmoud Gaballa commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Established patient office or other outpatient visit (HCPCS 99215); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232). Source: CMS Medicare Physician & Other Practitioners file.