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[ Home ](https://mdster.com) 2. [ Internal Medicine ](https://mdster.com/speciality/internal-medicine) 3. AOBIM AOBIM Exam Preparation ======================== American Osteopathic Board of Internal Medicine American Osteopathic Board of Internal Medicine USA AOBIM provides AOA board certification in Internal Medicine for osteopathic physicians (DOs). Primary certification includes meeting training/eligibility requirements and successfully completing the Internal Medicine Written Exam offered in scheduled exam windows. Certified physicians maintain their credential through Osteopathic Continuous Certification (OCC) pathways and assessments. 3,853+ Questions 3,627+ Flashcards 68+ Podcasts About the AOBIM Exam ---------------------- The American Osteopathic Board of Internal Medicine (AOBIM) provides primary board certification for osteopathic physicians (DOs) specializing in Internal Medicine. The certification demonstrates a physician's comprehensive knowledge, clinical decision-making skills, and the integration of osteopathic principles within internal medicine practice. ### Eligibility Candidates must be graduates of a COCA-accredited osteopathic medical school (or hold equivalent AOA recognition) and have successfully completed an AOA-accredited or ACGME-accredited residency in Internal Medicine. Candidates must also hold an active license to practice medicine. ### Exam Format The primary certification exam is a written, multiple-choice question (MCQ) examination comprising 320 items. It is delivered via a secure, remote-proctored testing platform and is divided into four timed sections with scheduled breaks. ### Duration The total exam appointment typically lasts 7 to 8 hours. This includes testing time for the 320 items, a brief tutorial, and optional scheduled breaks between the four testing sections. ### Passing Criteria The AOBIM uses a criterion-referenced standard-setting methodology. Candidates must achieve a scaled score that meets or exceeds the minimum passing standard established by the board's psychometric evaluation. ### Exam Fees Exam fees generally range from $1,100 to $1,400 USD, depending on AOA membership status and whether the candidate registers during the early, regular, or late registration windows. ### Exam Frequency The AOBIM Internal Medicine Written Exam is typically offered once or twice annually, most commonly during a late summer or early autumn testing window. ### Registration Process Registration is completed online through the AOA physician portal. Candidates must submit proof of residency completion (or a program director's letter if currently in their final year) and pay the required fees by the published deadlines. AOBIM Key Syllabus Topics --------------------------- Core topics and subject areas covered in the AOBIM examination ### Cardiovascular Disease Covers ischemic heart disease, heart failure, arrhythmias, valvular disease, and hypertension. ~12-16% ### Pulmonary Disease Focuses on asthma, COPD, interstitial lung diseases, pulmonary embolism, and critical care medicine. ~10-14% ### Gastroenterology and Hepatology Evaluates knowledge of luminal GI disorders, liver diseases, biliary tract disease, and pancreatic disorders. ~10-14% ### Infectious Disease Assesses diagnosis and management of bacterial, viral, fungal, and opportunistic infections, including HIV and sepsis. ~10-14% ### Endocrinology and Metabolism Covers diabetes mellitus, thyroid disorders, adrenal and pituitary diseases, and bone metabolism. ~8-12% ### Nephrology and Hypertension Includes acute kidney injury, chronic kidney disease, acid-base and electrolyte disorders, and glomerular diseases. ~8-12% ### Hematology and Oncology Focuses on anemias, coagulation disorders, leukemias, lymphomas, and solid organ malignancies. ~8-12% ### Rheumatology Evaluates autoimmune conditions, inflammatory arthritides, vasculitis syndromes, and crystal-induced arthritis. ~6-10% ### General Internal Medicine & Preventive Care Covers screening guidelines, immunizations, biostatistics, medical ethics, and general ambulatory care. ~8-12% ### Osteopathic Principles and Practice (OPP) Integrates osteopathic concepts, including viscerosomatic reflexes and somatic dysfunction related to internal organ systems. ~Integrated throughout (approx. 3-5%) **10** key topics covered Start Your AOBIM Preparation Today ------------------------------------ Comprehensive study materials designed to help you pass the AOBIM with confidence [ Get Started Free ](https://mdster.com/user/dashboard) No credit card required • 5-day free trial Everything You Need to Pass the AOBIM --------------------------------------- A complete preparation platform with tools designed for Internal Medicine professionals ### Practice Questions 3,853+ questions across MCQ, SAQ, SOE formats with detailed explanations and references ### Flashcards 3,627+ flashcards for active recall — mark known and unknown cards to focus on weak areas ### Audio Podcasts 68+ audio episodes — learn on the go during commutes, workouts, or ward breaks ### Timed Mock Exams Simulate real exam conditions with timed sessions, customisable question counts, and topic filters ### AI-Powered Q&A Ask follow-up questions on any topic and get instant, contextual answers with references ### Performance Analytics Track your progress, identify weak areas, and monitor your exam readiness with detailed analytics How to Prepare for the AOBIM ------------------------------ A practical guide to help you plan your AOBIM preparation effectively ### Recommended Timeline 6 to 9 months of dedicated, structured study, typically beginning in the latter half of the PGY-3 residency year. ### Study Tips - Complete at least one major internal medicine question bank twice, focusing heavily on the educational objectives of incorrect answers. - Ensure your testing environment meets the strict technical requirements for the remote-proctored platform well before exam day. - Review osteopathic principles, specifically viscerosomatic reflexes related to the cardiovascular, pulmonary, and gastrointestinal systems. - Simulate the 8-hour testing day at least twice to build physical and mental stamina for the four distinct blocks. - Stay updated on major clinical guidelines (e.g., ACC/AHA, ADA, GOLD, GINA) as the AOBIM frequently tests current standards of care. - Attend an AOA-recognized board review course if you struggle with structured self-study. ### High-Yield Topics - Acute coronary syndrome diagnosis and management algorithms - Acid-base interpretation and complex electrolyte derangements - Sepsis management protocols and broad-spectrum antibiotic stewardship - Asthma and COPD step-up therapy guidelines - Type 2 Diabetes management and novel pharmacotherapy - Viscerosomatic autonomic innervation for major organ systems - Evaluation of acute kidney injury and indications for hemodialysis ### Common Pitfalls - Underestimating the mental fatigue of a 320-question, full-day examination. - Failing to review basic Osteopathic Principles and Practice (OPP), assuming it will be a negligible part of the exam. - Experiencing technical difficulties on exam day due to not performing the mandatory system readiness checks for remote proctoring. - Relying entirely on passive reading (textbooks) rather than active recall through question banks. - Over-focusing on rare diseases while neglecting highly prevalent general internal medicine topics. ### Recommended Resources - MKSAP (Medical Knowledge Self-Assessment Program) - UWorld ABIM/AOBIM Internal Medicine Question Bank - MedStudy Internal Medicine Core Audio/Books - American College of Osteopathic Internists (ACOI) Board Review Course - Savarese OMT Review (for targeted OPP/viscerosomatic review) Study Pathways ---------------- Choose the pathway that matches your AOBIM preparation stage ### Internal Medicine Core Pathway Core pathway for Internal Medicine covering foundational exams and initial certification steps. #### What's Included 1,174 MCQ Questions 686 SAQ Questions 2,266 Flashcards 35 Podcasts 4,161 total study resources [ Start Learning ](https://mdster.com/user/dashboard) ### Internal Medicine Advanced Pathway Advanced pathway for Internal Medicine covering final exams, oral assessments, and advanced clinical evaluations. #### What's Included 1,083 MCQ Questions 810 SAQ Questions 100 SOE Questions 1,361 Flashcards 33 Podcasts 3,387 total study resources #### Exam Coverage AOBIM Internal Medicine Written Exam [ Start Learning ](https://mdster.com/user/dashboard) Last refreshed: April 2026 Flexible Pricing Plans ------------------------ Choose the plan that fits your AOBIM study schedule ### Try Risk-Free for 5 Days Start your free trial today and get full access to all AOBIM features. **No credit card required**. Cancel anytime. No Commitment! Full platform access All study materials Analytics & tracking Cancel anytime ### Internal Medicine Core Pathway Core pathway for Internal Medicine covering foundational exams and initial certification steps. #### Monthly Flexible month-to-month $12.00 /month Cancel anytime Immediate access Save 8% #### 3 Months Popular Great for exam cycles $11.00 /month Billed $33.00 every 3 months Save 8% vs monthly Perfect for exam cycles Save 17% #### 6 Months Maximum savings $10.00 /month Billed $60.00 every 6 months Save 17% vs monthly Best value for serious learners ### Internal Medicine Advanced Pathway Advanced pathway for Internal Medicine covering final exams, oral assessments, and advanced clinical evaluations. #### Monthly Flexible month-to-month $15.00 /month Cancel anytime Immediate access Save 13% #### 3 Months Popular Great for exam cycles $13.00 /month Billed $39.00 every 3 months Save 13% vs monthly Perfect for exam cycles Save 20% #### 6 Months Maximum savings $12.00 /month Billed $72.00 every 6 months Save 20% vs monthly Best value for serious learners ### Internal Medicine Bundle (Core + Advanced) Bundle subscription for Internal Medicine: Core + Advanced pathways with all features included. #### Monthly Flexible month-to-month $20.00 /month Cancel anytime Immediate access Save 15% #### 3 Months Popular Great for exam cycles $17.00 /month Billed $51.00 every 3 months Save 15% vs monthly Perfect for exam cycles Save 25% #### 6 Months Maximum savings $15.00 /month Billed $90.00 every 6 months Save 25% vs monthly Best value for serious learners Latest AOBIM Updates ---------------------- Recent changes and developments for the AOBIM examination 2024 ### Permanent Remote Proctoring Transition The AOBIM solidified its move to deliver the Internal Medicine Written Exam exclusively via a remote-proctored platform, permanently replacing in-person testing centers. Late 2024 ### Blueprint Adjustments for Primary Care The exam blueprint saw slight weighting adjustments to reflect an increased emphasis on general internal medicine, preventive care, and outpatient chronic disease management. Early 2025 ### Alignment with Single GME Accreditation Eligibility criteria and documentation processes were streamlined for DO candidates completing ACGME-accredited internal medicine residencies. Candidates should verify exact documentation requirements with the AOBIM. Updates are based on publicly available information and may not reflect the very latest changes. Always verify with the official American Osteopathic Board of Internal Medicine website. Related Internal Medicine Exams --------------------------------- Other examinations in Internal Medicine you may be interested in [ ### ABIM American Board of Internal Medicine USA ](https://mdster.com/speciality/internal-medicine/abim) [ ### AIM Facharztprüfung Allgemeine Innere Medizin Europe ](https://mdster.com/speciality/internal-medicine/aim) [ ### DNB/DrNB Diplomate of National Board India ](https://mdster.com/speciality/internal-medicine/dnb-drnb) [ ### FCP(SA) Fellowship of the College of Physicians of South Africa South Africa ](https://mdster.com/speciality/internal-medicine/fcp-sa) [ ### FCPS Fellowship of the College of Physicians and Surgeons Pakistan Pakistan ](https://mdster.com/speciality/internal-medicine/fcps-internal-medicine) [ ### MRCP(UK) Membership of the Royal Colleges of Physicians of the United Kingdom UK ](https://mdster.com/speciality/internal-medicine/mrcp-uk) Frequently Asked Questions ---------------------------- Everything you need to know about AOBIM preparation Can I take the AOBIM exam if I completed an ACGME-accredited residency? Yes. Under the single GME accreditation system, osteopathic physicians (DOs) who complete an ACGME-accredited Internal Medicine residency are fully eligible to sit for the AOBIM primary certification exam. Are MDs eligible to take the AOBIM Internal Medicine Written Exam? AOA board certification is historically designed for osteopathic physicians (DOs). While the single accreditation system has opened some AOA boards to MDs, candidates should verify specific eligibility pathways and prerequisite osteopathic training requirements directly with the AOA and AOBIM. What are the technical requirements for the remote-proctored exam? Candidates must test in a private, quiet, well-lit room. Technical requirements typically include a reliable high-speed internet connection, a functioning webcam and microphone, a single monitor, and the installation of specific secure browser software to prevent access to other applications during the test. How much Osteopathic Principles and Practice (OPP) is on the exam? OPP is integrated throughout the exam rather than being isolated to a single section. It generally makes up a small but significant portion (roughly 3-5%), with a strong focus on autonomic innervations, viscerosomatic reflexes, and somatic dysfunctions related to internal medicine pathologies. What is the historical pass rate for the AOBIM exam? While pass rates can fluctuate by cohort, the first-time taker pass rate for the AOBIM Internal Medicine Written Exam is historically strong, typically ranging between 85% and 95%. What happens if I fail the exam? Candidates who do not pass may retake the examination during the next available testing window. The AOBIM allows multiple attempts, but candidates must successfully pass the exam within their designated board-eligibility timeframe (typically six years from residency completion). Are breaks allowed during the remote-proctored exam? Yes. The exam is divided into four distinct sections. Candidates are provided scheduled optional breaks between these sections. You cannot pause the timer or take an unscheduled break while actively answering a section without potentially invalidating your test. Is there a clinical or oral component to the primary certification? No. The primary certification for AOBIM currently consists solely of the Internal Medicine Written Exam. There is no oral or clinical skills examination required for initial certification. Specialty reading hub Related Internal Medicine Articles ------------------------------------ Reinforce your AOBIM preparation with specialty-specific guides, exam strategy articles, and clinical revision insights from the MDster blog. [ Browse all Internal Medicine articles ](https://mdster.com/blog?speciality=internal-medicine) [ ![IBS Subtypes and Diagnosis: Rome IV, IBS-C/D, and Colonoscopy](https://mdster.com/storage/blog/images/ibs-subtypes-and-diagnosis-rome-iv-ibs-cd-and-colonoscopy.jpg) Medical Education / 7 min read ### IBS Subtypes and Diagnosis: Rome IV, IBS-C/D, and Colonoscopy A focused Internal Medicine review of IBS diagnosis: how to use Rome IV concepts, separate IBS-C from IBS-D and mixed IBS, and decide when colonoscopy is truly indicated. 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Mar 29, 2026 Read article ](https://mdster.com/blog/colorectal-cancer-treatment-concepts-surgery-to-surveillance) Ready to Pass the AOBIM? -------------------------- Join medical professionals who are preparing for the American Osteopathic Board of Internal Medicine with MDster [ Get Started Free ](https://mdster.com/user/dashboard) No credit card required • Cancel anytime [ ](/) Master your medical exams with evidence-based learning. 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