Doctor profile · Federal record

Dr. Srinivasan Narayanan, MD, PHD

Vascular & Interventional Radiology Physician (CMS: Interventional Radiology) · Diagnostic Radiology Physician · Vascular & Interventional Radiology Physician · Diagnostic Radiology Physician · McHenry, IL

  • NPI 1225565229
  • 9 yrs in practice
  • Licensed in 2 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 5 locations .

NPPES Updated May 11, 2026
Primary practice
4201 W Medical Center Dr
McHenry, IL 600508409
(815) 334-5566
fax (815) 334-5566
Additional location
1500 Forest Glen RD
Silver Spring, MD 209101460
(301) 754-7000
Additional location
19801 Observation Dr
Germantown, MD 208764070
(301) 557-6000
Show 2 more locations
Additional location
801 S Milwaukee Ave
Libertyville, IL 600483204
(847) 362-2900
Additional location
6431 Fannin St # 2.130B
Houston, TX 770301501
(713) 500-7530
Mailing address
1885 El Paseo St Apt 1042
Houston, TX 770543049

Credentials & registration

NPPES · NUCC
NPI registered
May 2017 — 9 yrs on file
Profile last updated
February 26, 2026
Year of graduation
2017 — 9 yrs since
Specialty taxonomy
2085R0204X — NUCC code
State licenses (2)
Illinois #036160647 · Maryland #D0104746

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1225565229. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$86
Transactions
5
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Inari Medical, INC. 5 $86.21

By nature of payment

Food and Beverage
$86

Frequently asked questions

Auto-generated from federal data
What is Dr. Srinivasan Narayanan's medical specialty?
Dr. Srinivasan Narayanan practices Vascular & Interventional Radiology Physician in McHenry, IL.
Where does Dr. Srinivasan Narayanan practice?
Dr. Srinivasan Narayanan practices at 4201 W Medical Center Dr, McHenry, IL 600508409. Office phone: 8153345566.
What is Dr. Srinivasan Narayanan's NPI?
Dr. Srinivasan Narayanan's National Provider Identifier (NPI) is 1225565229, issued by NPPES.
Does Dr. Srinivasan Narayanan accept Medicare assignment?
Dr. Srinivasan Narayanan does not accept Medicare assignment for all services. Patients may be billed amounts beyond Medicare-allowed charges.

Methodology · sources used on this page

All figures on this page come from publicly available federal datasets. We do not edit, score, or summarise the underlying data. Profile generated Aug 24, 2026.

NPPES Provider identifiers and practice info May 11, 2026
Open Payments Industry payments to providers (Sunshine Act) May 11, 2026
Medicare Procedure Utilization Services and allowed amounts by HCPCS May 11, 2026
Medicare Part D Prescription drug claims May 11, 2026
CMS MIPS Quality performance scores May 11, 2026
OIG LEIE Federal exclusion / sanctions list May 11, 2026

Information based on publicly available federal data. Not medical advice. Report incorrect data ›