Johnny Alexander, MD
NPI 1649439043 · Diagnostic Radiology Physician · Chicago, IL
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Johnny Alexander, MD is a Diagnostic Radiology Physician provider in Chicago, IL (NPI 1649439043).
Provider details
- NPI number
- 1649439043
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- MD210012291 (DC)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
18 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
2,372 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 | 598 | $8 |
| Ct Scan Head Or Brain Without Contrast70450 | 244 | $39 |
| Mri Scan of Brain Without Contrast70551 | 147 | $69 |
| Ct Scan of Chest Without Contrast71250 | 89 | $50 |
| Mri Scan of Brain Before and After Contrast70553 | 88 | $105 |
| Ct Scan of Abdomen and Pelvis Without Contrast74176 | 88 | $81 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$136 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
Additional practice locations (1)
- 2041 Georgia Ave Nw # 1r84Washington, DC 20060-1662Phone: (202) 865-3610
Registry dates
- Enumerated
- 2008-06-02
- Last updated
- 2025-07-28
- Certified
- 2025-07-28
Frequently asked questions
- What is Johnny Alexander's NPI number?
- Johnny Alexander's National Provider Identifier (NPI) is 1649439043, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Johnny Alexander's specialty?
- Johnny Alexander is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Johnny Alexander located?
- Johnny Alexander's practice location on file with NPPES is 3753 S Cottage Grove Ave Ste 101, Chicago, IL 60653-1662.
- What is Johnny Alexander's phone number?
- The practice phone number listed in the NPPES registry for Johnny Alexander is (708) 216-9000.
- Does Johnny Alexander accept Medicare?
- Johnny Alexander is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Johnny Alexander's NPI active?
- Yes — Johnny Alexander's NPI (1649439043) is active in the NPPES registry as of the last update on 2025-07-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.