Maria Zarzour, M.D
NPI 1396987756 · Internal Medicine Physician · Houston, TX
Enrolled with Medicare as Practitioner - Medical Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Maria Zarzour, M.D is a Internal Medicine Physician provider in Houston, TX (NPI 1396987756).
Provider details
- NPI number
- 1396987756
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D
- Sex
- Female
- Sole proprietor
- No
- License
- N2075 (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
17 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
469 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 High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 141 | $143 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 122 | $97 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 63 | $66 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 33 | $74 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 30 | $182 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Imatinib Mesylate | 196 | 22 |
| Cabozantinib S-Malatebrand: Cabometyx | 29 | — |
| Prochlorperazine Maleate | 21 | 18 |
| Ondansetron Hcl | 20 | 13 |
| Pazopanib Hclbrand: Votrient | 16 | — |
| Loperamide Hclbrand: Loperamide | 14 | — |
| Sorafenib Tosylatebrand: Sorafenib | 12 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$2,556 across 10 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
- 2009-04-01
- Last updated
- 2014-01-28
Frequently asked questions
- What is Maria Zarzour's NPI number?
- Maria Zarzour's National Provider Identifier (NPI) is 1396987756, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Maria Zarzour's specialty?
- Maria Zarzour is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Maria Zarzour located?
- Maria Zarzour's practice location on file with NPPES is 1515 Holcombe Blvd, Houston, TX 77030-4000.
- What is Maria Zarzour's phone number?
- The practice phone number listed in the NPPES registry for Maria Zarzour is (713) 792-6161.
- Does Maria Zarzour accept Medicare?
- Maria Zarzour is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Maria Zarzour's NPI active?
- Yes — Maria Zarzour's NPI (1396987756) is active in the NPPES registry as of the last update on 2014-01-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.