Summary

Dr. Catherine Thomas is an internal medicine physician with 37 years of clinical experience helping patients manage a wide range of health conditions. She earned her medical degree from Government Medical College and completed her residency at Cook County Health and Hospitals System in 1996. Dr. Thomas speaks Malayalam in addition to English, allowing her to serve patients from diverse backgrounds.

Dr. Thomas practices at Northwestern Medicine Regional Medical Group in St. Charles, Illinois, and is affiliated with Northwestern Medicine Delnor Hospital. She specializes in treating high blood pressure and hypertensive emergencies, conditions that require careful monitoring and expert management. Her practice also incorporates physical therapy approaches, including strength training and manual therapy techniques to support patient recovery and wellness. Patients have given Dr. Thomas an average rating of 3.6 on Vitals.

Overview based on verified provider data

Quick Facts

  • accepting new patients
  • 3.6
  • 37 years of experience
  • 38 insurance plans accepted
  • speaks Malayalam
  • Cook County Health and Hospitals System
  • 4 written reviews
  • 1 specialty
  • 6 areas of expertise
  • 1 hospital affiliation
  • 1 office location
  • Female

Patients’ Perspective

  • Gave an accurate diagnosis
  • Had a good bedside manner
  • Spent time with me

Office Location

Northwestern Medicine Regional Medical Group

2570 Foxfield Rd Ste 100St Charles, IL 60174

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Catherine S. Thomas, MD
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Catherine S. Thomas, MDDr. Eugene Suh, MDDr. Vanessa Sohn, MDJennifer Audrey Weiss, MD
Internal MedicineInternal MedicineInternal MedicineInternal Medicine
Accepts New Patients Accepts New Patients Accepts New Patients Accepts New Patients
3.6 
37 Years of Experience 14 Years of Experience
No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option
Speaks Malayalam Speaks English Speaks English
St Charles , ILMaywood , ILHarwood Heights , ILMaywood , IL
Med School: Government Medical College Med School: University Of Illinois At Chicago College Of Medicine
Current Profile
View Profile View Profile View Profile

Insurance Plans Accepted by Catherine S. Thomas

  • AARP
  • AARP - Medicare
  • AARP - PPO
  • Aetna
  • Aetna - Medicare
  • Aetna - Medicare (Advantage HMO)
  • Aetna - POS
  • Aetna - PPO
  • Blue Cross Blue Shield
  • Blue Cross Blue Shield - PPO
  • Blue Cross Blue Shield of Alabama
  • Blue Cross Blue Shield of Illinois
  • Blue Cross Blue Shield of Kansas City
  • CHAMPVA
  • Cigna
  • Cigna - PPO
  • HealthPartners
  • Humana
  • Humana - Medicare
  • Humana - Medicare (Advantage HMO)
  • Humana - PPO
  • Medicaid
  • Medicaid - Medicaid
  • Medicaid - Medicaid (Managed)
  • Medicare
  • Medicare - Medicaid
  • Medicare - Medicaid (Managed)
  • Medicare - Medicare
  • Meridian Health Plan
  • Meridian Health Plan - Medicaid (Managed)
  • Meritain Health
  • Priority Health
  • Tricare
  • UnitedHealthcare
  • UnitedHealthcare - HMO
  • UnitedHealthcare - Medicare
  • UnitedHealthcare - Medicare (Advantage HMO)
  • Wellcare

Medical Specialties

Catherine S. Thomas has the following specialty

Specialty Expertise

Catherine S. Thomas has the following 6 areas of expertise

  • Check-up
  • Heartburn
  • Immunization
  • Physical
  • Vaccination
  • Weight Loss

Certifications, License, & Education

37 Years Experience

Catherine S. Thomas holds an expired medical license in the state of Illinois.

Medical License

Medical Doctor with an expired medical license in the state of Illinois that expired in 2026.

Education & Training

Residency

Completed their residency at Cook County Health and Hospitals System in 1996.

Medical School

Graduated from Government Medical College in 1989.

NPI Number

Catherine S. Thomas' NPI number is 1295785756.

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Frequently Asked Questions

What languages does Catherine Thomas speak?
Catherine Thomas speaks Malayalam.
Where is Catherine Thomas's office located?
Catherine Thomas's office is located at 2570 Foxfield Rd Ste 100, St Charles, IL, 60174.
Is Catherine Thomas accepting new patients?
Catherine Thomas is accepting new patients on Vitals. View Catherine Thomas's profile on Vitals to make an appointment.
Which hospitals is Catherine Thomas affiliated with?
Catherine Thomas is affiliated with Northwestern Medicine Delnor Hospital.
Does Catherine Thomas accept my insurance?
You can see the insurance plans that Catherine Thomas accepts on their Vitals profile.

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