Giannis Moustafa, MD
NPI 1518509439 · Ophthalmology Physician · Milwaukee, WI
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Giannis Moustafa, MD is a Ophthalmology Physician provider in Milwaukee, WI (NPI 1518509439).
Provider details
- NPI number
- 1518509439
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 83240-20 (WI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
6 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 6 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Erythromycin Basebrand: Erythromycin | 142 | 121 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 54 | 54 |
| Latanoprost | 39 | 15 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 16 | — |
| Brimonidine Tartrate | 16 | — |
| Netarsudil Mesylatebrand: Rhopressa | 16 | — |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they include cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means , never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$56 across 2 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
- 2019-10-11
- Last updated
- 2024-07-18
- Certified
- 2024-07-18
Frequently asked questions
- What is Giannis Moustafa's NPI number?
- Giannis Moustafa's National Provider Identifier (NPI) is 1518509439, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Giannis Moustafa's specialty?
- Giannis Moustafa is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Giannis Moustafa located?
- Giannis Moustafa's practice location on file with NPPES is 925 N 87th St, Milwaukee, WI 53226-4812.
- What is Giannis Moustafa's phone number?
- The practice phone number listed in the NPPES registry for Giannis Moustafa is (414) 955-2020.
- Does Giannis Moustafa accept Medicare?
- Giannis Moustafa is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Giannis Moustafa's NPI active?
- Yes — Giannis Moustafa's NPI (1518509439) is active in the NPPES registry as of the last update on 2024-07-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.