Arun Nagaraju
NPI 1861805871 · Diagnostic Radiology Physician · Chicago, IL
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Arun Nagaraju is a Diagnostic Radiology Physician provider in Chicago, IL (NPI 1861805871).
Provider details
- NPI number
- 1861805871
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- No
- License
- 036148385 (IL)
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
12 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
13,285 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) |
|---|---|---|
| Screening Mammography77067 | 4,217 | $39 |
| Screening 3d Breast Mammography77063 | 4,192 | $30 |
| Screening Mammography77067 | 956 | $38 |
| Screening 3d Breast Mammography77063 | 935 | $30 |
| X-Ray of Chest, 1 View71045 | 491 | $9 |
| Dxa Bone Density Measurement of Hip, Pelvis, Spine77080 | 352 | $10 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,105 across 3 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)
- 5841 S. Maryland Ave. Suite Mc2026University of ChicagoChicago, IL 60637-1448Phone: (773) 702-3550Fax: (773) 834-6237
Registry dates
- Enumerated
- 2014-06-06
- Last updated
- 2025-12-31
- Certified
- 2025-12-31
Frequently asked questions
- What is Arun Nagaraju's NPI number?
- Arun Nagaraju's National Provider Identifier (NPI) is 1861805871, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Arun Nagaraju's specialty?
- Arun Nagaraju is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Arun Nagaraju located?
- Arun Nagaraju's practice location on file with NPPES is 5145 N California Ave, Chicago, IL 60625-3661.
- What is Arun Nagaraju's phone number?
- The practice phone number listed in the NPPES registry for Arun Nagaraju is (773) 989-3814.
- Does Arun Nagaraju accept Medicare?
- Arun Nagaraju is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Arun Nagaraju's NPI active?
- Yes — Arun Nagaraju's NPI (1861805871) is active in the NPPES registry as of the last update on 2025-12-31.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.