Summary

Dr. Frederick Klein is a gastroenterologist and internal medicine physician who graduated from Northwestern University The Feinberg School of Medicine. He completed his residency at McGaw Medical Center Northwestern University and brings over five decades of medical expertise to his practice. Dr. Klein is fluent in both English and Spanish, allowing him to serve diverse patient populations.

Dr. Klein practices at Arizona Gastroenterology Ltd in Tucson, Arizona, and maintains hospital privileges at Northwest Medical Center. He specializes in treating digestive conditions such as GERD and acid reflux, including these conditions in pediatric patients. His practice offers comprehensive infusion services, including intravenous antibiotic treatments and specialized IV therapies for various medical needs. Patients rate Dr. Klein 4.6 out of 5 stars for his care.

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Quick Facts

  • accepting new patients
  • 4.6
  • 51 years of experience
  • 28 insurance plans accepted
  • speaks English, Spanish
  • Mc Gaw Medical Center Northwestern University
  • 4 written reviews
  • 2 specialties
  • 11 areas of expertise
  • 2 board certifications
  • 1 hospital affiliation
  • 1 office location
  • Male

Office Location

Arizona Gastroenterology Ltd

7566 N La Cholla Blvd Ste ATucson, AZ 85741
Mon7:00 am - 4:30 pm
Tue7:00 am - 4:30 pm
Wed7:00 am - 4:30 pm
Thu7:00 am - 4:30 pm
Fri8:00 am - 12:00 pm
SatClosed
SunClosed

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Dr. Frederick Allen Klein, MDJan Seiler, APRNStephanie Fields, APRNBhavana Akotia, PA-C
GastroenterologyGastroenterologyGastroenterologyGastroenterology
Accepts New Patients Accepts New Patients Accepts New Patients Accepts New Patients
4.6 
51 Years of Experience
No Virtual Visit Option Virtual Visit Available Virtual Visit Available Virtual Visit Available
Speaks English, Spanish Speaks English Speaks English Speaks English
Tucson , AZMontgomery , ALTempe , AZTempe , AZ
Med School: Northwestern University The Feinberg School Of Medicine Med School: Georgia State University Med School: Columbus State University Med School: Charles R Drew University
Current Profile
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Insurance Plans Accepted by Dr. Frederick Allen Klein

  • Accepts Medicare
  • Accepts Medicaid
  • AARP
  • Aetna
  • Banner Health
  • Banner Health - Medicaid (Managed)
  • Blue Cross Blue Shield
  • Blue Cross Blue Shield of Arizona
  • Cigna
  • GEHA
  • GEHA - PPO
  • HealthPartners
  • Medicare
  • Medicare - Medicaid
  • Medicare - Medicare
  • Mercy Care
  • Meritain Health
  • Meritain Health - PPO
  • Optum Health
  • Optum Health - HMO
  • Physicians Mutual
  • Piedmont Community Health Plan
  • UnitedHealthcare
  • UnitedHealthcare - HMO
  • UnitedHealthcare - IPA
  • UnitedHealthcare - Medicaid (Managed)
  • UnitedHealthcare - Medicare
  • UnitedHealthcare - Medicare (Advantage HMO)
  • UnitedHealthcare - PPO
  • University of Arizona Health Plans

Medical Specialties

Dr. Frederick Allen Klein has the following 2 specialties

Specialty Expertise

Dr. Frederick Allen Klein has the following 11 areas of expertise

  • Abdominal Pain
  • Acid Reflux Disease (Gastroesophageal Reflux / GERD)
  • Acid Reflux Disease (GERD)
  • Celiac Disease
  • Colonoscopy
  • Constipation
  • Hemorrhoids
  • Hepatitis C
  • Internal Medicine
  • Irritable Bowel Syndrome (IBS)
  • Ulcerative Colitis

Certifications, License, & Education

51 Years Experience

MEDICAL LICENSE

Medical Doctor, Arizona, 2026, Active

EDUCATION & TRAINING

Residency

Mc Gaw Medical Center Northwestern University

Medical School

Northwestern University The Feinberg School Of MedicineGraduated in 1980
University Of Illinois At Chicago College Of MedicineGraduated in 1975

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Frequently Asked Questions

Which hospitals is Dr. Frederick Klein affiliated with?
Dr. Frederick Klein is affiliated with Northwest Medical Center.
Where is Dr. Frederick Klein's office located?
Dr. Frederick Klein's office is located at 7566 N La Cholla Blvd Ste A, Tucson, AZ, 85741.
How can I make an appointment with Dr. Frederick Klein?
You can find contact information for Dr. Frederick Klein here on Vitals.
Does Dr. Frederick Klein accept virtual/telehealth appointments?
Dr. Frederick Klein has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
Does Dr. Frederick Klein accept my insurance?
You can see the insurance plans that Dr. Frederick Klein accepts on their Vitals profile.

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