Dr. Eva Marcu Lonn – Internist / Geriatrician | Hamilton, ON

As a skilled Internist / Geriatrician, Dr. Eva Marcu Lonn offers expert diagnostic services and management for a wide range of adult health issues. Practicing in Hamilton, ON, she serves the surrounding communities with a focus on providing comprehensive care in Internal Medicine and Geriatric Care. Her practice is committed to adhering to the high standards set by the College of Physicians and Surgeons of Ontario (CPSO), ensuring that patients receive safe, ethical, and evidence-based medical care.

Dr. Lonn graduated with a Medical Degree from The Hebrew University-Hadassah Medical School in 1984, in Israel. She has completed extensive post-graduate medical training, including residency and specialized certifications in Internal Medicine and Geriatrics. Her rigorous education and ongoing professional development enable her to stay current with the latest medical advances and guidelines.

Her clinical philosophy emphasizes a clear and educational approach, aiming to empower patients through understanding their health conditions and treatment options. Dr. Lonn is dedicated to serving the Hamilton community with compassion and integrity. She speaks English, French, German, Hebrew, and Romanian, allowing her to connect effectively with diverse patient populations and provide culturally sensitive care.

Dr. Lonn provides expert care for adults with a wide range of medical conditions, including:

Select Infectious & Inflammatory Conditions

• Complex Infections Consultation: Providing diagnostic and management expertise for challenging infections, often in consultation with primary care.
• Fever of Unknown Origin (FUO) Workup: Systematic investigation to determine the cause of prolonged, unexplained fevers.
• Evaluation of Inflammatory Markers: Investigating elevated inflammatory markers (like ESR or CRP) to identify potential underlying systemic conditions.

Endocrine & Metabolic Disorders

• Adrenal Gland Disorders: Diagnosis and management of conditions affecting the adrenal glands, such as adrenal insufficiency.
• Osteoporosis & Metabolic Bone Disease: Diagnosis, risk assessment, and treatment strategies for conditions affecting bone strength and metabolism.
• Calcium and Parathyroid Disorders: Evaluation and management of conditions related to abnormal calcium levels and parathyroid gland function.

Complex Diagnostic & Multi-System Issues

• Syncope (Fainting) Evaluation: Comprehensive work-up to determine the cause of fainting spells or loss of consciousness.
• Perioperative Medical Optimization: Pre-surgical assessment and management of medical conditions to minimize operative risks and ensure smoother recovery.
• Evaluation of Undifferentiated Symptoms: Investigating complex presentations like fatigue, weight loss, or pain without a clear diagnosis.

Dr. Lonn manages a wide range of complex adult and geriatric health conditions. This list highlights common areas of focus. If your condition is not listed, please note that internal medicine specialists address diverse and often multi-systemic diseases. Consultation is typically initiated via referral from your primary care physician.

• Perioperative Medical Consultation: Assessing and managing medical risks (e.g., cardiac, respiratory) for patients undergoing surgery to ensure safety and optimize post-operative recovery.
• Driving Safety Assessment Consultation (Medical): Evaluating medical fitness to drive in older adults, considering cognitive, sensory, and physical factors.
• Assessment of Functional Decline: Investigating and managing sudden or gradual changes in an older adult's ability to perform daily activities.
• Management of Chronic Respiratory Conditions: Ongoing care for conditions such as COPD, asthma, and interstitial lung diseases, focusing on symptom control and exacerbation prevention.
• Internal Medicine Consultation for Primary Care: Providing specialist opinion and management recommendations to family physicians for complex adult patient cases.

Note: This list represents some of the key services offered by Dr. Lonn. As a specialist in Internal Medicine and Geriatric Care, she provides comprehensive diagnostic and management services. For specific inquiries about whether your condition falls within Dr. Lonn's scope of practice, please discuss with your referring physician or contact the clinic.

All medical services are provided in accordance with the standards of practice set by the College of Physicians and Surgeons of Ontario (CPSO).

Dr. Lonn's practice is situated in the Hamilton North End within the Beasley neighborhood. The clinic is located within the Baycrest Centre for Geriatric Care, a dedicated facility specializing in senior health services. The location is conveniently close to the Hamilton Public Library Central Branch and is easily accessible via the Hamilton Street Railway (HSR) transit system. The facility is wheelchair accessible. Parking is available at the facility, providing ease of access for patients.

How is payment handled for appointments with Dr. Lonn? Is it covered by Ontario Health Insurance Plan (OHIP)?

In ON, medical consultations with specialists like Dr. Lonn are typically covered by your provincial health insurance (Ontario Health Insurance Plan (OHIP)) when you present a valid health card and have the required referral. You generally do not pay directly for the consultation service itself. Some specific procedures, forms, or administrative tasks might not be covered by Ontario Health Insurance Plan (OHIP) and may incur a separate fee according to provincial guidelines. Please inquire if you have questions about uninsured services.

Can I book an appointment directly or do I absolutely need a referral?

A referral from your family physician or another medical specialist is required to see Dr. Lonn. As experts in Internal Medicine and Geriatric Care, Internists and Geriatricians see patients based on specific medical questions posed by the referring doctor. This ensures continuity of care and that the consultation is appropriate for your needs. Please have your doctor forward the referral information.

Why is reviewing multiple medications (polypharmacy) important?

As people age or develop multiple health conditions, they often take many medications. Polypharmacy increases the risk of side effects, drug interactions, falls, confusion, and non-adherence. A careful review helps ensure each medication is truly necessary, effective, and safe, potentially leading to deprescribing (stopping unnecessary drugs) and simplifying the regimen.

What exactly does an Internist (Internal Medicine Specialist) do?

An Internist is a medical doctor who specializes in diagnosing, treating, and preventing complex diseases primarily in adults. They are experts in managing conditions affecting multiple organ systems (Osteoporosis & Metabolic Bone Disease, Thyroid Disorders), handling challenging diagnostic puzzles, and coordinating care for patients with multiple chronic illnesses. They often serve as consultants to other physicians.

Is Dr. Lonn affiliated with a specific hospital?

Hospital privileges can vary. Dr. Lonn may have admitting privileges or provide consultation services at Hamilton's local hospitals such as Hamilton Health Sciences. This affiliation allows for coordinated care if hospitalization is required. If you are admitted, the hospital team may consult Dr. Lonn as needed, or she might be involved in your care depending on the specific hospital and service arrangements. Please confirm details with the office if needed.

Is the focus mainly on diseases or also on daily function?

While diagnosing and managing diseases like Calcium and Parathyroid Disorders or Hypertension (High Blood Pressure) is crucial, Dr. Lonn also places significant emphasis on maintaining or improving daily function and quality of life, especially for older adults. The goal is often to help patients remain as independent and active as possible, addressing issues like mobility, self-care (Investigation of Anemia), and participation in meaningful activities.

Baycrest Centre for Geriatric Care
237 Barton Street East
Hamilton, ON L8L 2X2

Phone: (905) 526-0970 | Fax: (905) 577-8261

The facility is wheelchair accessible.

Dr. Lonn is a licensed physician regulated by the College of Physicians and Surgeons of Ontario (CPSO) under the Medicine Act, 1991 in ON. Patients are typically seen by referral from their primary care physician.

Verify registration with the College of Physicians and Surgeons of Ontario (CPSO): https://doctors.cpso.on.ca/DoctorDetails/Lonn-Eva-Marcu/0041252-55228