Marwan Nasir, M.D.
NPI 1962590562 · Anatomic Pathology & Clinical Pathology Physician · Houston, TX
Enrolled with Medicare as Practitioner - Pathology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marwan Nasir, M.D. is a Anatomic Pathology & Clinical Pathology Physician provider in Houston, TX (NPI 1962590562).
Provider details
- NPI number
- 1962590562
- Entity type
- Individual
- Primary specialty
- Anatomic Pathology & Clinical Pathology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- H7026 (TX)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
1,298 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Special Stained Specimen Slides to Examine Tissue, Each Additional Procedure88341 | 397 | $25 |
| Pathology Examination of Tissue Using a Microscope, Intermediate Complexity88305 | 360 | $33 |
| Special Stained Specimen Slides to Examine Tissue, Initial Procedure88342 | 115 | $31 |
| Pathology Examination of Tissue Using a Microscope, Moderately High Complexity88307 | 94 | $73 |
| Special Stained Specimen Slides to Identify Organisms Including Interpretation and Report88312 | 72 | $24 |
| Microscopic Genetic Analysis of Tumor, Manual88360 | 58 | $37 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-10-10
- Last updated
- 2023-07-10
- Certified
- 2023-07-10
Frequently asked questions
- What is Marwan Nasir's NPI number?
- Marwan Nasir's National Provider Identifier (NPI) is 1962590562, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marwan Nasir's specialty?
- Marwan Nasir is listed in the NPPES registry with a primary specialty of Anatomic Pathology & Clinical Pathology Physician (Allopathic & Osteopathic Physicians).
- Where is Marwan Nasir located?
- Marwan Nasir's practice location on file with NPPES is 921 Gessner Rd, Houston, TX 77024-2501.
- What is Marwan Nasir's phone number?
- The practice phone number listed in the NPPES registry for Marwan Nasir is (832) 412-8670.
- Does Marwan Nasir accept Medicare?
- Marwan Nasir is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marwan Nasir's NPI active?
- Yes — Marwan Nasir's NPI (1962590562) is active in the NPPES registry as of the last update on 2023-07-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.