Louma Rustam, MD
NPI 1164918140 · Gastroenterology Physician · League City, TX
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Louma Rustam, MD is a Gastroenterology Physician provider in League City, TX (NPI 1164918140).
Provider details
- NPI number
- 1164918140
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- MD-53111 (IA)
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 tenure25% of score
7 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
190 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) |
|---|---|---|
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 51 | $151 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 37 | $119 |
| Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare45385 | 33 | $223 |
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 27 | $93 |
| Biopsy of Large Bowel Using a Flexible Endoscope45380 | 15 | $58 |
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 |
|---|---|---|
| Sodium, Potassium,mag Sulfatesbrand: Sod Sulf-Potass Sulf-Mag Sulf | 56 | 54 |
| Omeprazole | 49 | 24 |
| Pantoprazole Sodium | 22 | — |
| Furosemide | 17 | — |
| Famotidine | 16 | — |
| Ondansetron Hcl | 12 | — |
| Loperamide Hclbrand: Loperamide | 11 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$73 across 1 record (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
Additional practice locations (2)
- 200 Hawkins DrIowa City, IA 52242-1009Phone: (319) 356-3603
- 1015 S Hackett RdWaterloo, IA 50701-3543Phone: (319) 234-5990
Registry dates
- Enumerated
- 2018-07-02
- Last updated
- 2026-03-23
- Certified
- 2026-03-23
Frequently asked questions
- What is Louma Rustam's NPI number?
- Louma Rustam's National Provider Identifier (NPI) is 1164918140, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Louma Rustam's specialty?
- Louma Rustam is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Louma Rustam located?
- Louma Rustam's practice location on file with NPPES is 2240 Gulf Fwy S Ste 2.100, League City, TX 77573-5143.
- What is Louma Rustam's phone number?
- The practice phone number listed in the NPPES registry for Louma Rustam is (832) 505-1600.
- Does Louma Rustam accept Medicare?
- Louma Rustam is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Louma Rustam's NPI active?
- Yes — Louma Rustam's NPI (1164918140) is active in the NPPES registry as of the last update on 2026-03-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.