About
William J. Grimm, DO has practiced internal medicine in the Palm Springs area since the early 1990s. He earned his Bachelor of Science in Biomedical Science from Juniata College in 1984. He then completed his Doctorate of Osteopathic Medicine at the Philadelphia College of Osteopathic Medicine in 1988. His internship and internal medicine residency both took place at Mercy Catholic Medical Center in Philadelphia.
Early in his career, Dr. Grimm held appointments in emergency medicine at Norristown State Hospital and Jefferson Park Hospital. He also served as Director of Workcare Occupation Medicine at Mercy Catholic Medical Center. He holds membership in the American Osteopathic Association, the American Medical Association, and the Osteopathic Physicians and Surgeons of California. He served as Past President of the Riverside County Medical Association Board of Councilors. His clinical interests center on integrative medicine, including osteopathic and homeopathic practice. Dr. Grimm focuses on managing chronic conditions and anticipating each patient's health needs before problems arise. Patients consistently describe him as thorough, attentive, and easy to talk with.
Education & Training
Undergraduate
Juniata College, Bachelor of Science in Biomedical Science, 1984
Medical School
Philadelphia College of Osteopathic Medicine, Doctorate of Osteopathic Medicine, 1988
Residency
Internal Medicine Residency, Mercy Catholic Medical Center, 1989-1991
Additional Training
Internship, Mercy Catholic Medical Center, 1988-1989
Conditions Treated
Who is Dr. Grimm right for?
Dr. Grimm is a strong fit for adults seeking a long-term primary care relationship. Patients managing chronic conditions benefit from his proactive, anticipatory approach. Those interested in integrative medicine will find his osteopathic and homeopathic background valuable. Patients who want direct physician access after hours and on weekends will appreciate his availability. His thorough communication style suits patients who want a doctor who listens carefully.
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Frequently Asked Questions
Dr. Grimm practices concierge internal medicine with an integrative focus. He incorporates osteopathic and homeopathic principles into his care approach. His goal is to address the whole person, not just individual symptoms.
Dr. Grimm has practiced internal medicine in the Palm Springs area since the early 1990s. He brings more than three decades of experience to his patients. His deep roots in the region give him strong familiarity with the local healthcare landscape.
Dr. Grimm earned his Doctorate of Osteopathic Medicine from the Philadelphia College of Osteopathic Medicine in 1988. He completed both his internship and internal medicine residency at Mercy Catholic Medical Center in Philadelphia. Earlier, he earned his Bachelor of Science in Biomedical Science from Juniata College in 1984.
Dr. Grimm is a Doctor of Osteopathic Medicine specializing in internal medicine. He holds membership in the American Osteopathic Association and the American Medical Association. He also belongs to the Osteopathic Physicians and Surgeons of California.
Dr. Grimm served as Past President of the Riverside County Medical Association Board of Councilors. Earlier in his career, he served as Director of Workcare Occupation Medicine at Mercy Catholic Medical Center. These leadership roles reflect his long-standing commitment to organized medicine.
Yes. Members can reach Dr. Grimm directly by phone after hours and on weekends. This direct access is a core feature of the concierge model at his practice.
Dr. Grimm manages a wide range of chronic conditions as part of his internal medicine practice. He focuses on anticipating health needs before problems develop. His integrative approach draws on both conventional internal medicine and osteopathic principles.
Yes. For patients who need specialized care, Dr. Grimm connects them to Medical Centers of Excellence across the country. He coordinates those referrals directly to help members access top-tier specialty care.
Doctor profile last updated March 21, 2026