Business Details
28 Years
experience
Emergency
services
Your Trusted Internal Medicine Practice in Ann Arbor, MI
At Partners in Internal Medicine, we are dedicated to delivering personalized, high-quality healthcare to our valued patients. Our expert team of physicians, nurses, and staff collaborate to provide comprehensive medical care, treatment, and education through a patient-centered approach. We prioritize patient empowerment by offering one-on-one support, leveraging innovative technology, and fostering partnerships with health plans and specialty services. Our practice includes trained managed care representatives to assist patients with insurance requirements, cost differences, and benefits, ensuring informed healthcare decisions.With decades of combined experience, we are committed to maintaining the trust our community places in us, offering continuity of care even during transitions in our team. Our affiliations with leading hospitals and participation in programs like the Patient Centered Medical Home and Primary Care First reflect our dedication to advancing patient outcomes through structured, coordinated care.
Services
Internal Medicine
Primary Care
Managed Care Services
Injection Services
Patient Portal Access
Referral Management
Details
- Year established: 1998
Highlights and features
- We offer a Patient Centered Medical Home approach for coordinated, personalized care.
- Our team participates in the Primary Care First program to enhance patient outcomes.
- We provide trained managed care representatives to simplify insurance processes.
- Our physicians have decades of combined experience in internal medicine.
- We maintain hospital affiliations to ensure seamless specialty care access.
Associations and certifications
- Blue Cross Blue Shield of Michigan (Patient Centered Medical Home)
What people say
Compassionate care
Knowledgeable staff
Coordinated approach
Services
Internal Medicine
Our internal medicine specialists provide comprehensive care for adult patients, focusing on prevention, diagnosis, and treatment of complex chronic conditions. We emphasize long-term patient-physician relationships to address individual health needs through evidence-based practices. Our approach integrates advanced medical knowledge with personalized care plans tailored to each patient's lifestyle and goals.
Managed Care Services
Dedicated managed care representatives help patients navigate insurance requirements, cost differences, and benefits across multiple plans. We simplify authorization processes for specialists and procedures while maintaining compliance with payer networks. Our team ensures patients understand coverage details and receive coordinated care aligned with their specific health plans.
Injection Services
We administer essential injections including vaccines, vitamin therapies, and preventive treatments following strict safety protocols. Services include flu shots, hepatitis immunizations, B-12 supplements, and travel vaccines with proper documentation. All injections are performed under physician supervision with post-administration monitoring to ensure patient safety and treatment efficacy.
Patient Portal
Our secure patient portal enables 24/7 communication with care teams for appointment scheduling, medical record access, and health management. Patients can request prescription refills, review test results, and coordinate care directly through this HIPAA-compliant platform. The portal enhances accessibility while maintaining privacy and data security for all user interactions.
Referral Management
We facilitate specialist referrals and diagnostic test authorizations within 5 business days, ensuring timely access to necessary care. Our system tracks referral validity periods and coordinates direct communication between providers. Patients receive guidance on insurance requirements and pre-authorization processes to minimize out-of-pocket expenses.
People
Mariam Asadullah
Physician
Dr. Asadullah is board-certified in Family Medicine, joining our team in 2025 after completing residency at Corewell Health East Wayne Family Medicine program. She focuses on preventive care and patient education.
Mark Oberdoerster
Founder Physician
Dr. Oberdoerster co-founded our practice in 1998, dedicating his career to community-based internal medicine until his passing in 2024. His legacy continues through the Mark Oberdoerster Internal Medicine Scholarship Endowment.
Questions
What services does Partners in Internal Medicine offer?
We provide internal medicine primary care, managed care assistance, injection services, patient portal access, and specialist referral coordination.
Do I need a referral for specialist visits?
Yes, managed care plans require referrals processed within 5 business days. PPO plans typically don't require referrals.
Are after-hours services available?
Our answering service connects patients with on-call physicians for urgent care needs outside regular office hours.
How can I access my medical records?
Through our secure patient portal, available 24/7 for appointment scheduling, test results, and communication with care teams.
What insurance plans are accepted?
We participate with BCBSM, Aetna, Cigna, Humana, Priority Health, and Medicare. Check our website for complete details.
What happens during a referral process?
Our team processes referrals within 5 business days, faxes authorization directly to specialists, and ensures insurance coverage compliance.
