Summary

Dr. Kathryn Diemer specializes in internal medicine with advanced training in endocrinology, diabetes, and metabolism. She earned her medical degree from the University of Missouri-Kansas City School of Medicine and completed her residency at Barnes Jewish Hospital. With over four decades of medical practice, Dr. Diemer brings extensive expertise to patient care. She is fluent in English.

Dr. Diemer practices at multiple locations throughout Saint Louis and Creve Coeur, Missouri, with affiliations at Barnes Jewish Hospital, Missouri Baptist Medical Center, and Barnes Jewish West County Hospital. She focuses on treating joint pain and knee discomfort, helping patients manage chronic fatigue. Her practice includes coordinating physical therapy programs and strength training for patients, as well as performing bone density testing to assess bone health. Patients have given Dr. Diemer an average rating of 4.5.

Overview based on verified provider data

Quick Facts

  • 4.5
  • 41 years of experience
  • speaks English
  • Barnes Jewish Hospital
  • 2 written reviews
  • 2 specialties
  • 17 areas of expertise
  • 5 hospital affiliations
  • 6 office locations
  • Female

Patients’ Perspective

  • Gave an accurate diagnosis

Office Locations

Dr. Kathryn Mcguire Diemer has 6 locations

Washington University School Of Medicine Bone Health Program

10 Barnes West Dr Ste 200Saint Louis, MO 63141
Mon8:00 am - 4:30 pm
Tue8:00 am - 4:30 pm
Wed8:00 am - 4:30 pm
Thu8:00 am - 4:30 pm
Fri8:00 am - 4:30 pm
SatClosed
SunClosed

Barnes-Jewish West County Hospital Medical Building Two

10 Barnes West Dr Ste 200Creve Coeur, MO 63141

Barnes Jewish West County Hospital

12634 Olive BlvdCreve Coeur, MO 63141

Missouri Baptist Medical Center

3015 N Ballas RdSaint Louis, MO 63131

Saint Louis Childrens Hospital

1 Childrens PlSaint Louis, MO 63110

Barnes Jewish Hospital

1 Barnes Jewish Hospital PlzSaint Louis, MO 63110

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Dr. Kathryn Mcguire Diemer, MD
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Dr. Kathryn Mcguire Diemer, MDDr. Siroth Charnond, MDDr. Sreelatha Varma, MDDr. Kelly Ann Wood, MSPH, MD
Internal MedicineInternal MedicineInternal MedicineInternal Medicine
Accepts New Patients Accepts New Patients
4.5 
3.2 
41 Years of Experience 31 Years of Experience 20 Years of Experience
No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option
Speaks English Speaks English Speaks English Speaks English
Saint Louis , MOFlorissant , MOSaint Louis , MOColumbia , IL
Med School: University Of Missouri-Kansas City School Of Medicine Med School: University of Mo-Kansas City Sch of Med, Kansas City Mo Med School: Southern Illinois University School Of Medicine
Current Profile
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Insurance Plans Accepted by Dr. Kathryn Mcguire Diemer

Be sure to verify insurance information directly with your doctor's office, as it may undergo frequent changes.

Medical Specialties

Dr. Kathryn Mcguire Diemer has the following 2 specialties

Specialty Expertise

Dr. Kathryn Mcguire Diemer has the following 17 areas of expertise

  • Acromegaly
  • Addison Disease
  • Cushing Disease
  • Diabetes (Types I & II)
  • Endocrine Bone Diseases
  • Endocrinology, Diabetes & Metabolism
  • Fatigue
  • Gland Issues
  • Hormones
  • Hypercalcemia
  • Hyperthyroidism
  • Hypocalcemia
  • Hypopituitarism
  • Hypothyroidism
  • Metabolic Bone Diseases
  • Osteitis Deformans (Paget's Disease)
  • Osteoporosis

Certifications, License, & Education

41 Years Experience

Dr. Kathryn Mcguire Diemer holds an expired medical license in the state of Missouri.

Medical License

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

Education & Training

Residency

Completed their residency at Barnes Jewish Hospital.

Medical School

Graduated from University Of Missouri-Kansas City School Of Medicine in 1985.

NPI Number

Dr. Diemer's NPI number is 1891713590.

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Frequently Asked Questions

Does Dr. Kathryn Diemer accept my insurance?
You can see the insurance plans that Dr. Kathryn Diemer accepts on their Vitals profile.
Which hospitals is Dr. Kathryn Diemer affiliated with?
Dr. Kathryn Diemer is affiliated with Barnes Jewish Hospital, Missouri Baptist Medical Center, Saint Louis Childrens Hospital, Barnes Jewish West County Hospital, and Select Specialty Hospital Town And Country.
What languages does Dr. Kathryn Diemer speak?
Dr. Kathryn Diemer speaks English.
Does Dr. Kathryn Diemer accept virtual/telehealth appointments?
Dr. Kathryn Diemer has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
Is Dr. Kathryn Diemer accepting new patients?
Dr. Kathryn Diemer has not indicated that they accept new patients. Contact their office through their Vitals profile to check for availability.

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