Louis Diab, MD
NPI 1578092474 · Hospitalist Physician · Sugar Land, TX
Enrolled with Medicare as Practitioner - Hospitalist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Louis Diab, MD is a Hospitalist Physician provider in Sugar Land, TX (NPI 1578092474).
Provider details
- NPI number
- 1578092474
- Entity type
- Individual
- Primary specialty
- Hospitalist PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- S7037 (TX)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
9 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
6 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
762 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) |
|---|---|---|
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 690 | $164 |
| Critical Care, First 30-74 Minutes99291 | 58 | $200 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 14 | $116 |
Typical Medicare-allowed amounts for these services range $116–$200 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Practice location
Mailing address
Additional practice locations (5)
- 7200 Cambridge StHouston, TX 77030-4202Phone: (713) 785-8537
- 1504 Ben Taub LoopHouston, TX 77030Phone: (713) 873-2000
- 6620 Main StHouston, TX 77030-2348Phone: (713) 798-2450
- 2002 Holcombe BlvdHouston, TX 77030-4211Phone: (713) 791-1414
- 11555 University BlvdSugar Land, TX 77478-3889Phone: (713) 442-9100
Registry dates
- Enumerated
- 2017-06-06
- Last updated
- 2025-05-20
- Certified
- 2025-05-20
Frequently asked questions
- What is Louis Diab's NPI number?
- Louis Diab's National Provider Identifier (NPI) is 1578092474, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Louis Diab's specialty?
- Louis Diab is listed in the NPPES registry with a primary specialty of Hospitalist Physician (Allopathic & Osteopathic Physicians).
- Where is Louis Diab located?
- Louis Diab's practice location on file with NPPES is 16811 Southwest Fwy Ste 300, Sugar Land, TX 77479-4728.
- What is Louis Diab's phone number?
- The practice phone number listed in the NPPES registry for Louis Diab is (281) 276-0836.
- Does Louis Diab accept Medicare?
- Louis Diab is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Louis Diab's NPI active?
- Yes — Louis Diab's NPI (1578092474) is active in the NPPES registry as of the last update on 2025-05-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.