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ConciergeInternal Medicine

Grossman and Grossman M.D.s

Quick Facts

Practice TypeConcierge
LocationThousand Oaks, Greater Los Angeles, Ventura County
DoctorsLeah Grossman M.D., M.S., Internal Medicine

About

At Grossman and Grossman M.D.s, Dr. Leah Grossman delivers concierge primary care to adults across Thousand Oaks, Greater Los Angeles, and Ventura County. She holds board certification in Internal Medicine and brings an unusually layered academic background to her clinical work. Her training spans chemistry, neuroscience, and internal medicine across three universities.

Dr. Grossman keeps her patient panel intentionally small. That choice allows same-day or next-day appointments and unhurried visits. Patients reach her directly by phone or text. Her clinical focus spans preventive care, chronic condition management, longevity, and wellness optimization. She also coordinates with subspecialists and hospitals on behalf of her patients. The practice offers free consultations for anyone considering joining.

Details

Address

558 North Ventu Park Road, Suite A, Thousand Oaks, CA 91360

Same-Day Appointments

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Frequently Asked Questions

s offers free consultations for anyone considering joining the practice. You can call the office at (805) 498-0240 to schedule one. The consultation gives you a chance to meet Dr. Grossman and ask questions before committing.

Yes. The practice offers same-day or next-day appointments. Dr. Grossman keeps her patient panel intentionally small, which allows her to stay accessible and responsive when patients need to be seen quickly.

Dr. Grossman provides direct phone and text access to all her patients. You can reach her with questions or concerns without going through an answering service. She addresses messages promptly as part of the concierge care model.

s is located in Thousand Oaks and serves patients throughout Greater Los Angeles and Ventura County. The office sits at 558 North Ventu Park Road, Suite A, with free parking available in the adjacent lot.

The practice covers preventive care and wellness planning, chronic and acute condition management, medication review, lifestyle and travel health guidance, and longevity and wellness optimization. Dr. Grossman also coordinates with specialists and hospitals when patients need additional support.

s schedules extended, unhurried visits. Dr. Grossman takes the time to address all questions and review your full health history. Patients consistently describe never feeling rushed during their appointments.

Yes. s offers free consultations for prospective patients. Call (805) 498-0240 to set one up. It is a no-obligation opportunity to learn more about the practice and ask Dr. Grossman questions directly.

Yes. Preventive care and wellness planning are central to the practice. Dr. Grossman takes a proactive approach, helping patients get ahead of potential health issues rather than waiting to react to them. She also specializes in longevity and wellness optimization for patients focused on long-term health.

Practice last updated October 31, 2026