Mahmood El-Gasim, MD
NPI 1477814739 · Uveitis and Ocular Inflammatory Disease (Ophthalmology) Physician · Phoenix, AZ
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mahmood El-Gasim, MD is a Uveitis and Ocular Inflammatory Disease (Ophthalmology) Physician provider in Phoenix, AZ (NPI 1477814739).
Provider details
- NPI number
- 1477814739
- Entity type
- Individual
- Primary specialty
- Uveitis and Ocular Inflammatory Disease (Ophthalmology) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 53975 (AZ)
Specialties & taxonomies
- Uveitis and Ocular Inflammatory Disease (Ophthalmology) PhysicianPrimary207WX0108XLicense 53975 (AZ)
Allopathic & Osteopathic Physicians
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
14 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
9,316 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) |
|---|---|---|
| Imaging of Retina92134 | 3,561 | $41 |
| Injection of Drug Into Eye67028 | 2,657 | $132 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 1,100 | $131 |
| Established Patient Complete Exam of Visual System92014 | 549 | $127 |
| Compounded Drug, Not Otherwise ClassifiedJ7999 | 481 | $93 |
| Exam of Retinal Blood Vessels Using a Special Camera After Injection of a Dye92235 | 414 | $165 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisolone Acetate | 248 | 125 |
| Diclofenac Sodium | 95 | 43 |
| Latanoprost | 58 | 27 |
| Ofloxacin | 41 | 37 |
| Timolol Maleate | 35 | 14 |
| Brimonidine Tartrate | 19 | — |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 17 | — |
| Ketorolac Tromethamine | 15 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$631 across 16 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
- 2012-06-04
- Last updated
- 2019-05-07
Frequently asked questions
- What is Mahmood El-Gasim's NPI number?
- Mahmood El-Gasim's National Provider Identifier (NPI) is 1477814739, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mahmood El-Gasim's specialty?
- Mahmood El-Gasim is listed in the NPPES registry with a primary specialty of Uveitis and Ocular Inflammatory Disease (Ophthalmology) Physician (Allopathic & Osteopathic Physicians).
- Where is Mahmood El-Gasim located?
- Mahmood El-Gasim's practice location on file with NPPES is 4800 N 22nd St, Phoenix, AZ 85016-4701.
- What is Mahmood El-Gasim's phone number?
- The practice phone number listed in the NPPES registry for Mahmood El-Gasim is (602) 955-1000.
- Does Mahmood El-Gasim accept Medicare?
- Mahmood El-Gasim is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mahmood El-Gasim's NPI active?
- Yes — Mahmood El-Gasim's NPI (1477814739) is active in the NPPES registry as of the last update on 2019-05-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.