Ann Marie Stephenson Thomas, DO, MBA in Baltimore: Internal Medicine with Dual Credentials in Osteopathic Practice and Health Administration

Ann Marie Stephenson Thomas is a doctor of osteopathic medicine holding an MBA, practicing internal medicine in Baltimore with a clinical foundation that includes both manipulative treatment training and organizational healthcare experience. This combination is relatively uncommon in primary care and shapes how she approaches patient management and the complexity of cases she takes on.

What the Practice Actually Is

Dr. Stephenson Thomas operates as an internal medicine physician licensed to diagnose and manage chronic conditions, acute illness, and preventive health in adult patients. Because she holds a DO (Doctor of Osteopathic Medicine) degree rather than an MD, she completed training in osteopathic manipulative treatment, a technique using manual adjustment of joints and tissues to address musculoskeletal dysfunction and referred pain. Her MBA indicates additional training in healthcare administration, practice management, or health policy, which sometimes translates to efficient office operation and continuity of care, though clinical hours may be limited relative to a straight clinician. She is not a specialist in a single organ system but rather provides comprehensive adult primary care.

Services and Insurance Considerations

Internal medicine appointments cover the core scope of primary care: management of hypertension, diabetes, high cholesterol, thyroid disorders, COPD, and other chronic diseases; acute illness evaluation; preventive screening and vaccination; medication management; and coordination of specialist referrals. Because Dr. Stephenson Thomas holds osteopathic credentials, some patients seek her specifically for incorporation of manipulative techniques into treatment of back pain or musculoskeletal complaints, though this is not a substitute for orthopedic or neurosurgical intervention.

Pricing and insurance acceptance depend on the practice setting. If Dr. Stephenson Thomas operates independently or within a small group, session fees typically follow Baltimore-area internal medicine rates: copays of $25 to $50 for established patients, with out-of-pocket variation based on deductible and coinsurance. Confirm insurance acceptance directly with the practice, as even physicians accepting a major carrier may have limitations on referrals or prior authorization requirements. New-patient visits in Baltimore often cost more than follow-ups and may include a longer appointment window.

How This Compares to Other Baltimore Internal Medicine Options

Baltimore offers internal medicine through hospital-affiliated systems (University of Maryland Medical Center and Johns Hopkins Medicine dominate), through smaller private practices, and through safety-net clinics serving uninsured and Medicaid patients. A solo or small-group practice like Dr. Stephenson Thomas's typically offers more continuity of care and longer appointment times than large hospital systems, where patients may see rotating physicians and face longer wait times for appointments. Hospital-affiliated practices often have better access to imaging, laboratory, and specialist services on-site, reducing referral friction but sometimes increasing overall cost through facility fees. Safety-net clinics charge on a sliding-fee basis and accept all patients regardless of insurance, but wait times can extend to months. Dr. Stephenson Thomas's practice sits between these poles: more personalized than hospital systems, but likely with narrower in-house resources and less negotiating power on specialist referral timing.

Who This Practice Suits and Who It Does Not

This practice is well-suited to patients seeking a single primary care physician they see consistently, those interested in osteopathic approaches to musculoskeletal pain, and adults managing multiple chronic conditions who benefit from comprehensive rather than disease-specific oversight. Patients needing immediate or complex specialist care, those without insurance, or those requiring extensive in-office laboratory and diagnostic work may find a larger system more efficient. Patients expecting a practice that accommodates walk-in visits without appointment should confirm availability, as most private internal medicine practices operate by scheduled appointment only.

What the First Visit Involves

A new-patient appointment with Dr. Stephenson Thomas will include a detailed history of present and past illness, medication review, vital signs, and physical examination. Expect to complete intake paperwork covering family history, social history, and insurance information; the appointment itself typically lasts 45 minutes to an hour. Dr. Stephenson Thomas will likely order baseline laboratory work (complete blood count, metabolic panel, lipid panel) if not done recently and may discuss preventive screening aligned with your age and risk factors. If osteopathic manipulation is relevant to your care, the first visit may include assessment for structural dysfunction, though treatment often occurs at subsequent appointments.

Hours, Parking, and Logistics

Without specific confirmation of Dr. Stephenson Thomas's office location and hours, patients should verify these details directly by phone or the practice website. Most Baltimore internal medicine offices operate Monday through Friday from 8:00 AM to 5:00 PM, with limited or no weekend hours. Parking availability varies widely by neighborhood; many private practices in central Baltimore have on-site parking or validated parking arrangements, but some rely on street parking or nearby lots.

Dr. Stephenson Thomas's combination of osteopathic training and health administration credentials distinguishes her within Baltimore's internal medicine landscape and appeals to patients seeking both clinical continuity and a provider with broader organizational perspective on care.