
Overview
John Lin, MD, an internal medicine physician at Endeavor Health, provides primary care to adults with a focus on long-term health and preventive strategies. Inspired by early experiences with his father, a physician, Dr. Lin values the relationships he builds across generations of families. He approaches care as a collaborative journey, helping patients define their goals and connecting them with the right support along the way.
Dr. Lin is rated as an Experienced provider by MediFind in the treatment of Empty Sella Syndrome. His top areas of expertise are Graves Disease, Dementia, Thyroid Storm, and Tracheitis.
His clinical research consists of co-authoring 1 peer reviewed article. MediFind looks at clinical research from the past 15 years.
Insurance
Accepted insurance can change. Please verify directly with the provider.
Accepted insurance plans:
- EPO
- HMO
- POS
- PPO
- EPO
- HMO
- POS
- PPO
- EPO
- HMO
- POS
- PPO
- HMO
- INSURANCE PLAN
- MANAGED MEDICAID PLAN
- MEDICARE MAPD
- MEDICARE PDP
- MEDICARE-MEDICAID PLAN
- OTHER COMMERCIAL
- OTHER MEDICARE
- OTHER MEDICARE PART D
- PPO
- EPO
- INSURANCE PLAN
- MEDICARE MAPD
- MEDICARE PDP
- OTHER COMMERCIAL
- OTHER MEDICARE
- PPO
- HMO
- POS
- PPO
- OTHER MEDICARE
- OTHER MEDICARE PART D
- EPO
- HMO
- PPO
- OTHER COMMERCIAL
- EPO
- HMO
- POS
- PPO
- MEDICARE MAPD
- OTHER MEDICARE
- EPO
- HMO
- POS
- PPO
- HMO
- INSURANCE PLAN
- MANAGED MEDICAID PLAN
- MEDICARE MAPD
- MEDICARE PDP
- MEDICARE SNP
- OTHER COMMERCIAL
- OTHER MEDICARE
- OTHER MEDICARE PART D
- PPO
- POS
- PPO
- EPO
- HMO
- PPO
- HMO
- INDEMNITY
- POS
- PPO
- EPO
- POS
- PPO
- OTHER MANAGED MEDICAID
- OTHER MEDICAID
- STATE MEDICAID
- EPO
- HMO
- HMO
- INSURANCE PLAN
- MANAGED MEDICAID PLAN
- MEDICARE MAPD
- MEDICARE SNP
- MEDICARE-MEDICAID PLAN
- OTHER COMMERCIAL
- OTHER MEDICARE
- OTHER MEDICARE PART D
- INSURANCE PLAN
- MANAGED MEDICAID PLAN
- MEDICARE PDP
- EPO
- HMO
- PPO
- OTHER COMMERCIAL
- EPO
- HMO
- POS
- PPO
- MEDICARE DISCOUNT CARD
- MEDICARE PDP
- OTHER MEDICARE
- EPO
- HMO
- INSURANCE PLAN
- MANAGED MEDICAID PLAN
- MEDICARE MAPD
- MEDICARE PDP
- MEDICARE SNP
- MEDICARE-MEDICAID PLAN
- OTHER MEDICARE
- OTHER MEDICARE PART D
Locations
71 Waukegan Rd., Suite 800, Lake Bluff, IL 60044
Clinical Research
Clinical research consists of overseeing clinical studies of patients undergoing new treatments and therapies, and publishing articles in peer reviewed medical journals. Providers who actively participate in clinical research are generally at the forefront of the fields and aware of the most up-to-date advances in treatments for their patients.
Zhongyuan Zhang is a primary care provider, practicing in Internal Medicine in Chicago, Illinois. Dr. Zhang is rated as an Experienced provider by MediFind in the treatment of Empty Sella Syndrome. His top areas of expertise are Empty Sella Syndrome, Pseudotumor Cerebri Syndrome, Increased Intracranial Pressure, and Tinnitus.
Endeavor Health Medical Group
Kristina Todorova-Koteva, MD, an endocrinologist at Endeavor Health, provides personalized care for a broad range of hormonal and metabolic conditions. She focuses on patient education and informed decision-making, helping individuals understand their diagnosis and choose the best path forward. Dr. Todorova-Koteva believes that empowered patients are better equipped to improve their health and sustain long-term outcomes. Dr. Todorova is rated as a Distinguished provider by MediFind in the treatment of Empty Sella Syndrome. Her top areas of expertise are Type 2 Diabetes (T2D), Diabetic Nephropathy, Triple A Syndrome, and Thyroid Cancer.
Endeavor Health Medical Group
Karolina Woloszyn Machnica, DO, an endocrinologist at Endeavor Health, provides care for patients with hormonal and metabolic disorders, including diabetes, thyroid disease and adrenal conditions. She works closely with patients to develop individualized treatment plans that support long-term endocrine health. Dr. Machnica is rated as a Distinguished provider by MediFind in the treatment of Empty Sella Syndrome. Her top areas of expertise are Hyperparathyroidism, Type 2 Diabetes (T2D), Familial Isolated Hyperparathyroidism, and Osteitis Fibrosa.
Areas of Expertise
MediFind evaluates expertise by pulling from factors such as number of articles a doctor has published in medical journals, participation in clinical trials, speaking at industry conferences, prescribing and referral patterns, and strength of connections with other experts in their field.
Learn more about MediFind’s expert tiers
- Distinguished
- DementiaDr. Lin isDistinguished. Learn about Dementia.
- Graves DiseaseDr. Lin isDistinguished. Learn about Graves Disease.
- Advanced
- Acute Kidney FailureDr. Lin isAdvanced. Learn about Acute Kidney Failure.
- AnemiaDr. Lin isAdvanced. Learn about Anemia.
- Breast CancerDr. Lin isAdvanced. Learn about Breast Cancer.
- Chronic CoughDr. Lin isAdvanced. Learn about Chronic Cough.
- Congenital Hemolytic AnemiaDr. Lin isAdvanced. Learn about Congenital Hemolytic Anemia.
- Coronary Heart DiseaseDr. Lin isAdvanced. Learn about Coronary Heart Disease.
- Experienced
- AbetalipoproteinemiaDr. Lin isExperienced. Learn about Abetalipoproteinemia.
- Addison's DiseaseDr. Lin isExperienced. Learn about Addison's Disease.
- Adrenal Insufficiency PediatricDr. Lin isExperienced. Learn about Adrenal Insufficiency Pediatric.
- Alopecia AreataDr. Lin isExperienced. Learn about Alopecia Areata.
- Ampullary CancerDr. Lin isExperienced. Learn about Ampullary Cancer.
- Anaplastic Thyroid CancerDr. Lin isExperienced. Learn about Anaplastic Thyroid Cancer.

