Mamdouh Rayan, MD
NPI 1134261845 · Diagnostic Radiology Physician · Maywood, IL
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mamdouh Rayan, MD is a Diagnostic Radiology Physician provider in Maywood, IL (NPI 1134261845).
Provider details
- NPI number
- 1134261845
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- ME119459 (FL)
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
19 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
2,013 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) |
|---|---|---|
| X-Ray of Chest, 1 View71045 | 961 | $9 |
| X-Ray of Chest, 2 Views71046 | 493 | $11 |
| X-Ray of Chest, 2 Views71046 | 412 | $11 |
| Ct Scan of Chest Without Contrast71250 | 38 | $51 |
| Ct Scan of Blood Vessels of Chest With Contrast71275 | 36 | $88 |
| X-Ray of Chest, 1 View71045 | 34 | $9 |
| Ct Scan of Chest Without Contrast71250 | 15 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$274 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
- 2007-02-12
- Last updated
- 2025-04-01
- Certified
- 2025-04-01
Frequently asked questions
- What is Mamdouh Rayan's NPI number?
- Mamdouh Rayan's National Provider Identifier (NPI) is 1134261845, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mamdouh Rayan's specialty?
- Mamdouh Rayan is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Mamdouh Rayan located?
- Mamdouh Rayan's practice location on file with NPPES is 2160 S 1st Ave, Maywood, IL 60153-3328.
- What is Mamdouh Rayan's phone number?
- The practice phone number listed in the NPPES registry for Mamdouh Rayan is (708) 216-9000.
- Does Mamdouh Rayan accept Medicare?
- Mamdouh Rayan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mamdouh Rayan's NPI active?
- Yes — Mamdouh Rayan's NPI (1134261845) is active in the NPPES registry as of the last update on 2025-04-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.