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Internal Medicine Physicians
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Medicare + 7 Networks
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About Dr. Peggy Wanner-Barjenbruch
Background and practice information
Dr. Peggy Wanner-Barjenbruch is an internal medicine physician with over 44 years of clinical experience serving patients in the Mexico, MO area. She completed her medical training at University Of Kansas School Of Med (kc/wich/sal) and has been in practice since 1982. She currently practices at Boone Physician Services Llc.
Dr. Peggy Wanner-Barjenbruch's clinical practice focuses on treating patients with hypothyroidism (underactive thyroid), high blood pressure, acid reflux and stomach ulcers, and related conditions.
Dr. Peggy Wanner-Barjenbruch is in-network with 7 insurance providers, including Aetna, Cigna, Humana, and 4 more. Patients are encouraged to verify coverage with her office before scheduling an appointment.
At a Glance
Education
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Claim this profilePractice Locations
2 locations
Boone Physician Services Llc
Primary600 Medical Park Dr
Mexico, MO 65265
(573) 581-8500
Aging Well Health Care, Llc
7212 Balson Ave
Saint Louis, MO 63130
Affiliations
Hospital and facility affiliations
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Treatment & Experience
Clinical practice and procedure experience for Dr. Peggy Wanner-Barjenbruch
Services & Procedures
Dr. Peggy Wanner-Barjenbruch's clinical practice encompasses office visits, nursing facility care, preventive care, and 2 other areas of care. Based on Medicare utilization data, Dr. Peggy Wanner-Barjenbruch has provided a substantial volume of services, reflecting an active and established practice in internal medicine.
Office Visits
1,064 servicesDr. Peggy Wanner-Barjenbruch provides patient consultations ranging from routine follow-ups to comprehensive evaluations, with follow-up visit being a key part of her practice. Medicare patients typically pay significantly less than the standard charge for these services, with Medicare-approved rates averaging 73% below the billed amount.
Nursing Facility Care
269 servicesDr. Peggy Wanner-Barjenbruch provides ongoing medical oversight for patients in nursing facilities, with nursing facility visit being a key part of her practice. Medicare patients typically pay significantly less than the standard charge for these services, with Medicare-approved rates averaging 64% below the billed amount.
Preventive Care
433 servicesDr. Peggy Wanner-Barjenbruch delivers preventive health services including wellness visits, vaccinations, and health screenings, including annual wellness visit, annual wellness visit; includes a personalized prevention plan of service , initial visit, and other related services. Medicare patients typically pay significantly less than the standard charge for these services, with Medicare-approved rates averaging 62% below the billed amount.
Diagnostic Testing
478 servicesDr. Peggy Wanner-Barjenbruch orders and interprets diagnostic tests to support clinical decision-making, including clotting time test, urinalysis, and other related services. Medicare patients typically pay significantly less than the standard charge for these services, with Medicare-approved rates averaging 58% below the billed amount.
Surgical Procedures
13 servicesDr. Peggy Wanner-Barjenbruch performs surgical procedures, with removal of impacted ear wax being a key part of her practice. Medicare patients typically pay significantly less than the standard charge for these services, with Medicare-approved rates averaging 64% below the billed amount.
Treatment Approach
Dr. Peggy Wanner-Barjenbruch's treatment approach includes prescribing Levothyroxine Sodium, Lisinopril, Omeprazole for her patients. These medications are commonly used for treating hypothyroidism (underactive thyroid), high blood pressure, acid reflux and stomach ulcers. She prescribing profile reflects experience across a wide range of treatments, addressing multiple aspects of patient care within her specialty. Dr. Peggy Wanner-Barjenbruch has treated a significant number of Medicare patients, demonstrating an established practice in this area.
Source: CMS Medicare Provider Utilization and Payment Data, 2023.
Insurance Networks
Accepted insurance plans and networks
Dr. Peggy Wanner-Barjenbruch accepts 47 plans from 7 insurers, including Cigna, UnitedHealthcare, Humana.
Source: CMS Transparency in Coverage filings (March 2026). Network participation may change — verify with the provider's office before scheduling.
Financial Transparency
Industry payment disclosures
Pharmaceutical and medical device companies disclosed $115 in payments to Dr. Peggy Wanner-Barjenbruch in 2024, primarily from Otsuka America Pharmaceutical, Inc. for food and beverage. These disclosures are required by federal law under the Physician Payments Sunshine Act.
Top Paying Companies
Source: CMS Open Payments, 2024.
Patient Reviews
Reviews and ratings from patients
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About Internal Medicine
Specialty overview and common conditions
An internal medicine physician (internist) is a medical doctor who specializes in the prevention, diagnosis, and treatment of diseases in adults. Internists are trained to manage complex, chronic, and multi-system illnesses, often serving as primary care doctors for adults or as consultants to other...
Common conditions treated by internal medicine specialists:
- Type 2 Diabetes Mellitus
- Hypertension (High Blood Pressure)
- Hyperlipidemia (High Cholesterol)
- Coronary Artery Disease (Heart Disease)
Frequently Asked Questions
Common questions about Peggy Wanner-Barjenbruch
Does Dr. Wanner-Barjenbruch accept Medicare?
Yes, Dr. Wanner-Barjenbruch accepts Medicare assignment. Patients with Medicare coverage can see Dr. Wanner-Barjenbruch and typically pay less out of pocket when using a provider who accepts Medicare assignment.
What insurance does Dr. Wanner-Barjenbruch accept?
Dr. Wanner-Barjenbruch is in-network with 7 insurance providers, including Aetna, Cigna, Humana, Medicare, Oxford Health Plans (UHC), and 2 more. Insurance networks can change, so patients should verify their specific plan coverage directly with Dr. Wanner-Barjenbruch's office before scheduling.
Does Dr. Wanner-Barjenbruch offer telehealth or virtual appointments?
Dr. Wanner-Barjenbruch does not currently list telehealth services. For virtual care options, contact the office directly or consider other internal medicine providers in Mexico who offer telehealth.
What conditions does Dr. Wanner-Barjenbruch treat?
As a internal medicine specialist, Dr. Wanner-Barjenbruch commonly treats conditions including type 2 diabetes mellitus, hypertension (high blood pressure), hyperlipidemia (high cholesterol), coronary artery disease (heart disease), chronic obstructive pulmonary disease (copd), and other related health concerns. Contact the office to discuss your specific healthcare needs.
What medications does Dr. Wanner-Barjenbruch commonly prescribe?
Based on Medicare prescribing data, Dr. Wanner-Barjenbruch commonly prescribes medications including Levothyroxine Sodium, Lisinopril, Omeprazole. The specific medications prescribed depend on each patient's individual diagnosis and health needs. Patients should discuss treatment options directly with Dr. Wanner-Barjenbruch during their consultation.
Where did Dr. Wanner-Barjenbruch go to medical school?
Dr. Wanner-Barjenbruch completed medical training at University Of Kansas School Of Med (Kc/Wich/Sal) and has been practicing since 1982, bringing over 44 years of clinical experience.
Where is Dr. Wanner-Barjenbruch's office located?
Dr. Wanner-Barjenbruch practices at 600 MEDICAL PARK DR, Mexico, MO 65265 at BOONE PHYSICIAN SERVICES LLC. You can reach the office by calling (573) 581-8500.
How do I make an appointment with Dr. Wanner-Barjenbruch?
To schedule an appointment with Dr. Wanner-Barjenbruch, call the office at (573) 581-8500. New patients should have their insurance information and medical records ready when calling.
Data source: CMS National Provider Registry ·
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Medical Disclaimer: This content is for informational purposes only and is not a substitute for professional medical advice. Learn more about our editorial standards