Mohammad Al-Assi, M.D.
NPI 1578554333 · Gastroenterology Physician · Arlington, TX
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mohammad Al-Assi, M.D. is a Gastroenterology Physician provider in Arlington, TX (NPI 1578554333).
Provider details
- NPI number
- 1578554333
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- J4684 (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
20 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
632 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) |
|---|---|---|
| Biopsy of Large Bowel Using a Flexible Endoscope45380 | 121 | $74 |
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 114 | $53 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 109 | $125 |
| Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare45385 | 80 | $237 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 59 | $114 |
| Insertion of Guide Wire With Dilation of Esophagus Using a Flexible Endoscope |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 27 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Pantoprazole Sodium | 525 | 148 |
| Omeprazole | 344 | 91 |
| Sucralfate | 245 | 73 |
| Dicyclomine Hcl | 165 | 46 |
| Linaclotidebrand: Linzess | 83 | 22 |
| Colestipol Hcl | 66 | 23 |
| Famotidine | 41 | 15 |
| Diphenoxylate Hcl/Atropine |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$686 across 36 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
- 2005-11-02
- Last updated
- 2013-05-16
Frequently asked questions
- What is Mohammad Al-Assi's NPI number?
- Mohammad Al-Assi's National Provider Identifier (NPI) is 1578554333, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mohammad Al-Assi's specialty?
- Mohammad Al-Assi is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Mohammad Al-Assi located?
- Mohammad Al-Assi's practice location on file with NPPES is 1001 N Waldrop Dr, Arlington, TX 76012-4705.
- What is Mohammad Al-Assi's phone number?
- The practice phone number listed in the NPPES registry for Mohammad Al-Assi is (817) 394-4300.
- Does Mohammad Al-Assi accept Medicare?
- Mohammad Al-Assi is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mohammad Al-Assi's NPI active?
- Yes — Mohammad Al-Assi's NPI (1578554333) is active in the NPPES registry as of the last update on 2013-05-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.