Independent US Healthcare Provider Directory & Public Medical Database Patient Guides

Dr. Sridharan Radhakrishnan , MD

Surgery β€’ Orange, CA

Active NPI 1477283778 Individual Practitioner Male Practitioner
Practice location in NPPES

3800 W Chapman Ave Ste 6200
Orange, CA 928681640

Call 7144567890 Location details and other listings
Medical Disclaimer

This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.

Practice Location & Contact Primary Location

Practice Address

3800 W Chapman Ave Ste 6200

Orange, CA 928681640

Telephone 7144567890
Organization at the Same NPPES Address or Phone
University Of California Irvine Facility NPI 1518739309

Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.

Industry payments (Open Payments)

No Open Payments records are listed for this clinician for 2019–2025.

Guide: How to read an Open Payments record

NPI first issued

2022

The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.

What this does not show: NPI first issued

NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.

Source: CMS NPPES NPI Registry.

Medicare assignment not listed

CMS data do not show whether this clinician accepts Medicare assignment. This does not mean they do not accept Medicare. Ask the office.

Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.

Source: CMS Doctors and Clinicians; Medicare.gov, β€œDoes your provider accept Medicare as full payment?”

Guide: What Medicare assignment means

No telehealth indicator

CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.

Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.

Guide: How Medicare covers telehealth

Compared with the same specialty in Orange and California

60 active clinicians are listed under Surgery with a practice address in Orange, CA (3,120 in California).

Addresses are self-reported to NPPES and may be out of date.

Telehealth indicator in Orange

31.7% of these 60 clinicians have the CMS telehealth indicator.

60% of these 60 clinicians are listed by CMS as accepting Medicare assignment.

Sources: CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.

Text: T-MedInfo Β· Report an error.

Specialties & License Numbers Reported to NPPES

Self-certified to NPPES: 2025-08-09
Surgery Primary Specialty

NUCC Taxonomy Code: 208600000X

License # reported to NPPES CA 17364

A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.

Student in an Organized Health Care Education/Training Program

NUCC Taxonomy Code: 390200000X

An individual who is enrolled in an organized health care education/training program leading to a degree, certification, registration, and/or licensure to provide health care.

Check License Status with the State Board License numbers are self-reported to NPPES; T-MedInfo does not confirm them against state records. Current status: Medical Board of California.
Look Up on State Board Site

Clinicians Sharing This Practice Address or Phone

Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.

21 listed
Tom Bui , PA-C

Physician Assistant - Medical

NPI 1093344004

Physician Assistant (Certified)

Dr. Astrid Carrion Rodriguez , MD

Student in an Organized Health Care Education/Training Program

NPI 1114415411

Doctor of Medicine (M.D.)

Dr. Richard Catabona , DO

Physical Medicine & Rehabilitation

NPI 1144961285

Doctor of Osteopathic Medicine (D.O.)

Dr. Brian Chung , MD

Anesthesiology

NPI 1063907202

Doctor of Medicine (M.D.)

Dr. Isabel Clark , MD

Surgery - Trauma Surgery

NPI 1003262510

Doctor of Medicine (M.D.)

NPI 1043888274

Doctor of Medicine (M.D.)

Career & Practice History Timeline

Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status

9 Historical Events
πŸ“
Updated Practice Location August 09, 2025

Registered at 3800 W CHAPMAN AVE STE 6200, ORANGE, CA 928681640 (Tel: 7144567890)

πŸ“
Updated Business Mailing Address August 09, 2025

Registered at 3800 W CHAPMAN AVE STE 6200, ORANGE, CA 928681640

πŸ‘€
Provider Name / Credentials Updated August 09, 2025

Recorded as SRIDHARAN RADHAKRISHNAN, MD

βœ…
NPI Profile Active June 10, 2022

NPI status registered as active in NPPES database

πŸ“
Practice Location (Initial Record) June 10, 2022

Registered at SCHOOL OF MEDICINE 30 N 1900 E, SALT LAKE CITY, UT 841320001 (Tel: 8015812121)

πŸ“
Business Mailing Address (Initial Record) June 10, 2022

Registered at SCHOOL OF MEDICINE 30 N 1900 E, SALT LAKE CITY, UT 841320001

πŸ‘€
Provider Name / Credentials (Initial Record) June 10, 2022

Recorded as SRIDHARAN RADHAKRISHNAN

πŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) June 10, 2022

Student in an Organized Health Care Education/Training Program

🟒
Initial NPI Registration & Enumeration June 10, 2022

First registered as active Individual Practitioner in NPPES Database.

No reviews have been published yet. Leave a review.

NPI Administrative Meta

NPI Number: 1477283778
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: June 10, 2022
Last Update: August 09, 2025
Sole Proprietor: No

Other Surgery Specialists in Orange

All Surgery Specialists in Orange

Mailing Address

3800 W Chapman Ave Ste 6200

Orange, CA 928681640

About This Data NPPES fields (address, phone, specialty, license) are self-reported and may be outdated; Medicare fields follow the CMS dataset named in each section. Correct directly at NPPES.