Individual Healthcare Provider
Srinivasan V Narayanan, MD, PHD
Provider's NPPES record last updated: February 26, 2026
Overview
- Entity Type
- Individual Healthcare Provider
- NPI
- 1225565229
- Primary Specialty
- Radiology — Vascular & Interventional Radiology
- Practice Location
- Mchenry, Illinois
- Sole Proprietor
- No
Federal Screening
NPISignal checked this NPI against federal exclusion sources. Results below are based on the NPI number itself — an identifier match, not a name match.
List of Excluded Individuals/Entities (LEIE)
HHS Office of Inspector General
No potential match was identified in NPISignal's indexed List of Excluded Individuals/Entities (LEIE) records as of 2026-09-10.
- Source data
- September 10, 2026
- Records indexed
- 84,001
- Screened
- Sep 19, 2026, 6:15 AM UTC
This reflects only the records NPISignal currently holds and the identity information supplied. It is not a verification of eligibility, licensure, or compliance. Verify decisions that matter against the authoritative source.
SAM.gov Exclusions
U.S. General Services Administration
SAM.gov Exclusions was not checked.
SAM.gov screening is not configured on this deployment. No SAM check has been performed.
- Screened
- Not checked
This is an NPI-based check only. NPISignal does not publish name-based exclusion matches on a provider profile. A shared or similar name is a lead that requires human review, not an identification, and this page is not the place to make one. Run a name-based screening below to see potential matches with the reasons for each.
This reflects only the records NPISignal currently holds and the identity information supplied. It is not a verification of eligibility, licensure, or compliance. Verify decisions that matter against the authoritative source.
Searches OIG LEIE and SAM.gov by name and reviews every potential match.
Specialties & Taxonomies
- Primary
Radiology
Vascular & Interventional Radiology
Allopathic & Osteopathic Physicians
A radiologist who diagnoses and treats diseases by various radiologic imaging modalities. These include fluoroscopy, digital radiography, computed tomography, sonography and magnetic resonance imaging.
Taxonomy code 2085R0204X Radiology
Diagnostic Radiology
Allopathic & Osteopathic Physicians
A radiologist who utilizes x-ray, radionuclides, ultrasound and electromagnetic radiation to diagnose and treat disease.
Taxonomy code 2085R0202X
Provider-Reported License Information
- Radiology (Illinois)
- 036160647
- Radiology (Illinois)
- 036160647
- Radiology (Maryland)
- D0104746
- Radiology (Maryland)
- D0104746
Practice Locations
Practice Location
4201 W Medical Center Dr
Mchenry, Illinois 60050-8409
Phone: (815) 334-5566
Additional Practice Location
801 S Milwaukee Ave
Libertyville, Illinois 60048-3204
Phone: (847) 362-2900
Additional Practice Location
19801 Observation Dr
Germantown, Maryland 20876-4070
Phone: (301) 557-6000
Additional Practice Location
1500 Forest Glen Rd
Silver Spring, Maryland 20910-1460
Phone: (301) 754-7000
Additional Practice Location
6431 Fannin St # 2.130b
Houston, Texas 77030-1501
Phone: (713) 500-7530
Record Information
- Enumeration Date
- May 22, 2017
- Provider's NPPES Record Last Updated
- February 26, 2026
- Certification Date
- February 26, 2026
- NPISignal NPPES Dataset
- August 2026
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