Summary

Dr. Barry Zeffren is an internal medicine physician who specializes in allergy and immunology. With 47 years of experience in practice, he brings extensive knowledge to treating patients with allergic conditions and immune system disorders. Dr. Zeffren earned his medical degree from St. Louis University School of Medicine and completed his residency training at St. Louis University Hospital. He is fluent in both English and Spanish.

Dr. Zeffren maintains affiliations with several regional hospitals including Gateway Regional Medical Center, HSHS Saint Joseph's Hospital Highland, and Alton Memorial Hospital. He focuses on treating conditions such as seasonal allergic rhinitis and various types of allergies. His practice includes performing allergy skin tests to identify specific triggers and providing allergen immunotherapy treatments. Patients have given him an average rating of 4.3 out of 5 stars.

Overview based on verified provider data

Quick Facts

  • accepting new patients
  • 4.3
  • 47 years of experience
  • speaks English, Spanish
  • St Louis University Hospital
  • 2 written reviews
  • 2 specialties
  • 14 areas of expertise
  • 6 hospital affiliations
  • 10 office locations
  • Male

Patients’ Perspective

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

Office Locations

Dr. Barry Francis Zeffren has 10 locations

Allergy And Asthma Care Ltd

4 Country Club Executive ParkGlen Carbon, IL 62034
Mon1:00 pm - 6:00 pm
Tue1:00 pm - 4:30 pm
Wed9:30 am - 6:00 pm
ThuClosed
Fri10:30 am - 12:00 pm
SatClosed
SunClosed

Allergy And Asthma Care Ltd

2 Memorial Dr Ste 201Alton, IL 62002
MonClosed
TueClosed
WedClosed
Thu1:00 pm - 5:00 pm
FriClosed
SatClosed
SunClosed

Allergy And Asthma Care Ltd

200 Health Care DrGreenville, IL 62246
MonClosed
Tue9:30 am - 11:30 am
WedClosed
ThuClosed
FriClosed
SatClosed
SunClosed

Allergy And Asthma Care Ltd

12860 Troxler AveHighland, IL 62249
MonClosed
Tue9:30 am - 11:30 am
WedClosed
ThuClosed
FriClosed
SatClosed
SunClosed

Alton Memorial Hospital

1 Memorial DrAlton, IL 62002

Hshs Saint Josephs Hospital Highland

12866 Troxler AveHighland, IL 62249

Gateway Regional Medical Center

2100 Madison AveGranite City, IL 62040

Hshs Holy Family Hospital

200 Health Care DrGreenville, IL 62246

Hshs Saint Francis Hospital

1215 Franciscan DrLitchfield, IL 62056

Compare with Similar Doctors

Dr. Barry Francis Zeffren, MD
Dr. Siroth Charnond, MD
Dr. Sreelatha Varma, MD
Dr. Mazhar Lakho, MD, MD
Dr. Barry Francis Zeffren, MDDr. Siroth Charnond, MDDr. Sreelatha Varma, MDDr. Mazhar Lakho, MD, MD
Internal MedicineInternal MedicineInternal MedicineInternal Medicine
Accepts New Patients Accepts New Patients Accepts New Patients
4.3 
3.2 
3.8 
47 Years of Experience 31 Years of Experience
No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option
Speaks English, Spanish Speaks English Speaks English Speaks English
Glen Carbon , ILFlorissant , MOSaint Louis , MOFairview Heights , IL
Med School: St Louis University School Of Medicine Med School: University of Mo-Kansas City Sch of Med, Kansas City Mo Med School: Liaquat University of Medical & Health Sciences
Current Profile
View Profile View Profile View Profile

Insurance Plans Accepted by Dr. Barry Francis Zeffren

  • Accepts Medicare

Medical Specialties

Dr. Barry Francis Zeffren has the following 2 specialties

Specialty Expertise

Dr. Barry Francis Zeffren has the following 14 areas of expertise

  • Allergies
  • Allergy
  • Allergy & Immunology
  • Asthma
  • Desensitization
  • Food Allergies
  • Hay Fever
  • Hay Fever (Seasonal Allergic Rhinitis)
  • Immunotherapy
  • Itching
  • Nasal Allergy (Rhinitis)
  • Rash
  • Sinusitis
  • Watery Eyes

Certifications, License, & Education

47 Years Experience

Dr. Barry Francis Zeffren 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 St Louis University Hospital.

Medical School

Graduated from St Louis University School Of Medicine in 1979.

NPI Number

Dr. Zeffren's NPI number is 1205908639.

Similar doctors

Frequently Asked Questions

Does Dr. Barry Zeffren accept virtual/telehealth appointments?
Dr. Barry Zeffren has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
Where is Dr. Barry Zeffren's office located?
Dr. Barry Zeffren's office is located at 4 Country Club Executive Park, Glen Carbon, IL, 62034.
Which hospitals is Dr. Barry Zeffren affiliated with?
Dr. Barry Zeffren is affiliated with Gateway Regional Medical Center, Hshs Saint Josephs Hospital Highland, Hshs Saint Francis Hospital, Alton Memorial Hospital, Osf Healthcare Saint Anthonys Health Center, and HSHS HOLY FAMILY HOSPITAL.
How can I make an appointment with Dr. Barry Zeffren?
You can find contact information for Dr. Barry Zeffren here on Vitals.
Does Dr. Barry Zeffren accept my insurance?
You can see the insurance plans that Dr. Barry Zeffren accepts on their Vitals profile.

Ensuring Data Transparency and Trust: A Guide to Vitals Doctor Listings and Reviews

Our provider data is gathered directly from physicians and publicly available databases. Providers who verify their profiles gain the ability to update information, offering additional details about their specialties,education, treated conditions, performed procedures, and accepted insurances.

Reviews on Vitals are submitted by users only. Recognizing the valuable insights these reviews offer into a doctor's reputation, we maintain internal policies and protocols to ensure the quality and accuracy of all reviews. Importantly, providers cannot delete or alter reviews independently. Reviews can only be deleted or changed following an internal assessment by our customer service team.

Your feedback is highly valued and we encourage you to contact our support team should you encounter any issues.