Mahmoud Gaballa, M.D.
NPI 1992096135 · Hematology & Oncology Physician · Houston, TX
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mahmoud Gaballa, M.D. is a Hematology & Oncology Physician provider in Houston, TX (NPI 1992096135).
Provider details
- NPI number
- 1992096135
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- U0588 (TX)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
15 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
779 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 286 | $118 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 234 | $144 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 72 | $97 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 52 | $183 |
| Telephone Medical Discussion With Physician, 21-30 Minutes99443 | 51 | $129 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 9 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Pomalidomidebrand: Pomalyst | 119 | 25 |
| Lenalidomidebrand: Revlimid | 94 | 24 |
| Valacyclovir Hclbrand: Valacyclovir | 86 | 31 |
| Lenalidomide | 63 | 23 |
| Pantoprazole Sodium | 36 | 18 |
| Sulfamethoxazole/Trimethoprimbrand: Sulfamethoxazole-Trimethoprim | 22 | — |
| Apixaban |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$991 across 6 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
- 2011-04-21
- Last updated
- 2022-12-29
- Certified
- 2022-12-29
Frequently asked questions
- What is Mahmoud Gaballa's NPI number?
- Mahmoud Gaballa's National Provider Identifier (NPI) is 1992096135, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mahmoud Gaballa's specialty?
- Mahmoud Gaballa is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Mahmoud Gaballa located?
- Mahmoud Gaballa's practice location on file with NPPES is 1515 Holcombe Blvd, Houston, TX 77030-4000.
- What is Mahmoud Gaballa's phone number?
- The practice phone number listed in the NPPES registry for Mahmoud Gaballa is (713) 792-6161.
- Does Mahmoud Gaballa accept Medicare?
- Mahmoud Gaballa is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mahmoud Gaballa's NPI active?
- Yes — Mahmoud Gaballa's NPI (1992096135) is active in the NPPES registry as of the last update on 2022-12-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.