Narayan Sundaram
NPI 1598940090 · Diagnostic Radiology Physician · Chicago, IL
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Narayan Sundaram is a Diagnostic Radiology Physician provider in Chicago, IL (NPI 1598940090).
Provider details
- NPI number
- 1598940090
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- No
- License
- 036126658 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
18 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
2,908 Medicare services, 2024 (ranked within specialty)
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 methodology.
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 Hip, 2-3 Views73502 | 207 | $11 |
| X-Ray of Knee, 3 Views73562 | 183 | $10 |
| X-Ray of Knee, 3 Views73562 | 175 | $48 |
| X-Ray of Shoulder, Minimum of 2 Views73030 | 135 | $10 |
| X-Ray of Knee, 4 Or More Views73564 | 134 | $13 |
| X-Ray of Foot, Minimum of 3 Views73630 | 121 | $9 |
| X-Ray of Hand, Minimum of 3 Views73130 | 119 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-01-02
- Last updated
- 2022-05-19
Frequently asked questions
- What is Narayan Sundaram's NPI number?
- Narayan Sundaram's National Provider Identifier (NPI) is 1598940090, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Narayan Sundaram's specialty?
- Narayan Sundaram is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Narayan Sundaram located?
- Narayan Sundaram's practice location on file with NPPES is 5841 S Maryland Ave, Chicago, IL 60637-1443.
- What is Narayan Sundaram's phone number?
- The practice phone number listed in the NPPES registry for Narayan Sundaram is (888) 824-0200.
- Does Narayan Sundaram accept Medicare?
- Narayan Sundaram is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Narayan Sundaram's NPI active?
- Yes — Narayan Sundaram's NPI (1598940090) is active in the NPPES registry as of the last update on 2022-05-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.