Appointments 425.454.5046

We have Internal Medicine physicians at OIMA who have attended some of the most prestigious Ivy League schools, won awards, such as SeattleMet’s “Top Doctors”, been members of honors societies, such as Alpha Omega Alpha, and have led their peers in roles, such as Chief Resident. Our internists provide primary care for adults and seniors with the help of a friendly support staff.

Most of our internists are accepting new patients and we strive to make urgent and, on some days, even same-day appointments available for you if you need it. Just message us on our secure portal or click on the blue “BOOK ONLINE” button at the top right to complete our secure form, or give our staff a call at 425-990-5222.

Renu Chawla, M.D.


Dr. Renu Chawla recently relocated from Portland, Oregon, where she practicedRenu_Chawla_headshot

Internal Medicine/ Primary Care since 1999.

Over the last 16 years, Dr. Chawla has found great personal and professional satisfaction from building relationships with her patients based on mutual trust and respect. Her care philosophy includes an emphasis on preventive care and partnering with her patients to help them reach their health goals. Dr. Chawla’s specific areas of interest include a focus on general internal medicine, women’s health, and geriatrics.

“I am passionate about excellence and thoroughness in direct patient care and consider it my job to be an advocate for my patient’s health care needs.”

Dr. Chawla received her board certification in Internal Medicine in 1999 with

re-certification in 2009. After finishing her medical schooling at Subash Chandra Bose Medical College in Jabalpur, India, Dr. Chawla then completed her Internal Medicine residency at Rush-Westlake, an affiliate of Rush Presbyterian Hospital and Westlake Hospital in Chicago, Illinois.

In her free time, Dr. Chawla enjoys spending time with her family and finding time for hobbies such as hiking, reading, and cooking. Dr. Chawla is excited to join Overlake Internal Medicine Associates and looks forward to welcoming new patients to her practice.

Jill Enright, M.D.

Enright (153).05.14ACCEPTING NEW PATIENTS: Yes. ACCEPTING MEDICARE PATIENTS: Not at this time – please check back. Dr. Enright joined OIMA in May 2012. She has been practicing Internal Medicine in Bellevue since 1995. Dr. Enright enjoys all aspects of primary care, including preventive care, minor procedures, acute care, diagnosing and managing chronic health issues for men and women age 18 and older. She encourages patients to be active participants in their health and enjoys serving as a guide and resource for healthcare decisions.

Dr. Enright was raised in North Carolina. She received a Bachelor of Science (Chemistry) followed by a Medical Degree from Duke University in 1990. Internship and Residency were completed at University of California San Diego in 1993. She is a member of American Board of Internal Medicine, American College of Physicians, Washington State Medical Association and affiliated with Overlake Hospital Medical Center.

Dr. Enright enjoys spending time with her husband and two children, swimming, cycling, yoga, gardening and arts and crafts.

Darshana Shanbhag, M.D.

Shanbhag (19).05.14ACCEPTING NEW PATIENTS: Yes. Dr. Shanbhag joined Overlake Internal Medicine Associates in 2000. She is Board Certified in Internal Medicine in both the U.S. and India. After earning a Bachelor of Medicine and Surgery from the University of Bombay, she earned an advanced medical degree from the University of Bombay. While a student, she earned distinctions in anatomy, pharmacology and forensic medicine. Her community work included providing primary care to the poor in Bombay as well in rural areas of India.

Following board certification in India, Dr. Shanbhag came to the U.S. to complete an additional residency program at the University of Missouri at Columbia, whereupon she became board certified by the American Board of Internal Medicine. She holds memberships with both the American Medical Association and the American College of Physicians.

“I consider Internal Medicine my calling because in taking care of my patients, I come into contact with numerous medical disciplines: cardiology, neurology and infectious diseases, for example. As your health advocate, it is my role to sort through all of this information and help you make the best choices.”

Dr. Shanbhag was born and raised in Bombay, India, and has lived in the United States for many years. Away from the office, she spends as much time as possible with her husband and young daughter, engages in tennis and outdoor sports, and enjoys the quieter pursuits of reading and watching movies.

Allen J Geltzer, M.D.

Geltzer (78).05.14ACCEPTING NEW PATIENTS: Yes. ACCEPTING MEDICARE PATIENTS: Yes. Dr. Allen Geltzer was raised in Providence, Rhode Island and received a Bachelor of Arts with Honors in Biology at Brown University, an Ivy League school located in Providence. He received his Doctor of Medicine degree at Tufts University in Boston, Massachusetts. Afterwards, he moved directly to Seattle and completed his internship and residency specializing in primary care medicine at the Virginia Mason Medical Center. During residency, he published an article entitled “Effects of Weather on Carbon Monoxide Suicides in Western Washington,” which, interestingly, found that the incidence of suicides by carbon monoxide (CO) poisoning increased after one to seven days of rain.

Upon completion of residency in 1998, Dr. Geltzer began working for Overlake Internal Medicine Associates. He has been a board certified internist specializing in primary care medicine since that time. He has been the ongoing Vice President of the clinic and the primary care clinic executive representative since 2008. In 2009 he was featured in the Mercer Island Reporter for his role in saving a fellow tennis player in cardiac arrest (

Dr. Geltzer has enjoyed living in the Bellevue area since 1995. His interests include skiing, windsurfing, and hiking with his two bilingual children and French wife.

Please do not hesitate to call our office if you have any questions or concerns. He looks forward to working with you in the future.

Joseph Lee, M.D.

Lee (48).05.14ACCEPTING NEW PATIENTS: Yes. ACCEPTING MEDICARE PATIENTS: Not at this time – please check back. Dr. Joseph Lee is Board Certified in Internal Medicine. He received his Bachelor of Science in Biology from Portland State University in Oregon and his medical degree from Loma Linda University of Medicine in Loma Linda, California in 2000. His prior experience includes several years as a full time staff member at both the Beaver Medical Group and Kaiser Permanente in California. He joined Overlake Internal Medicine Associates in 2006.

Professional affiliations include The American Board of Internal Medicine, the American Medical Association, and the Washington State Medical Association.

In addition to caring for patients, Dr. Lee enjoys ice hockey, golf, photography and the cello.


Marc R. Mitchell, M.D.

Mitchell (139).05.14ACCEPTING NEW PATIENTS: Yes. ACCEPTING MEDICARE PATIENTS: Not at this time – please check back. Dr. Mitchell joined Overlake Internal Medicine Associates in 1997. He is Board Certified in Internal Medicine. He received his medical degree from Boston University School of Medicine, Massachusetts. He completed his residency in Internal Medicine at University of Washington.

He is a member of both The American Board of Internal Medicine and the American Medical Association as well as the American College of Physicians.

In addition to caring for patients, Dr. Mitchell enjoys various outdoor activities and spending time with his wife and two daughters.