At Banner Peak Health, we believe extraordinary healthcare emerges when exceptional physicians collaborate. We take the time to know you on the deepest personal level, providing medical care as unique as you are. Our team is passionate about prevention and optimization, using the latest diagnostic innovations to identify risk factors early and create meaningful change in your life. We're problem solvers who see beyond symptoms to root causes. We're partners who believe you should be the primary decision-maker in your health journey. And we're pioneers who've evolved from a solo practice to a collaborative team, multiplying our ability to serve you while maintaining the intimate, personal relationships that define exceptional medicine. This is the power of Concierge Medicine 2.0 — where shared knowledge enhances individual care.
Banner Peak Health Team
Our Leadership
Barry Rotman, MD
Physician and Founder
For over 35 years, Dr. Rotman has dedicated himself to practicing medicine without compromise. As Walnut Creek’s longest-serving concierge physician, he founded Banner Peak Health to preserve the physician-patient relationship and has since led its evolution into Concierge Medicine 2.0, including the groundbreaking Outperform program.
Nichole Goldberg
Executive Director
With over 23 years in healthcare, Nichole has been instrumental in Banner Peak Health’s growth from solo practice to multi-physician group. She oversees patient experience, operational excellence, and practice expansion, ensuring every member receives unparalleled service from their first conversation through their ongoing care journey.
Banner Peak Health Team
Our Physicians
Waheeda Hiller, MD
Internal Medicine
“A wise mentor taught me that the secret in caring for patients is to care about them. Banner Peak Health has given me the freedom to practice medicine in a manner consistent with my values — comprehensive, caring, and cutting-edge.”
Dr. Hiller brings compassionate, thorough care to every patient interaction, with special interests in preventive medicine and women’s health optimization.
Ari Katz, MD
Internal Medicine
“Medicine is about more than treating illness — it’s about partnering with patients to prevent disease and optimize wellbeing through nutrition, exercise, sleep, and stress management.”
Dr. Katz brings a comprehensive approach to longevity medicine, with expertise in metabolic optimization, athletic performance, and preventive strategies.
Lindsay Klein, MD
Internal Medicine
“There’s power in being present with a patient — in truly hearing their story and meeting them where they are. I’m excited to practice medicine the way it was meant to be practiced.”
Dr. Klein combines evidence-based medicine with genuine human connection, focusing on hormone optimization, metabolic health, and helping patients achieve their wellness goals.
Banner Peak Health Team
Patient Support
Isabella Valdez
Medical Assistant
Cheryl Widemon
Medical Assistant
Kristi Leon Guererro
Phlebotomy
Lynn Jaime
Reception
Gerardo Lopez
Patient Care Coordinator
Banner Peak Health Team
Our Collective Impact
4
exceptional physicians collaborating on your care
18+
years pioneering concierge medicine in Walnut Creek
1
shared mission: your optimal health and peace of mind
When you join Banner Peak Health, you don’t just get a doctor. You gain an entire team dedicated to your wellbeing. Our collaborative model means:
- Continuous Coverage – A physician who knows you is always available
- Shared Expertise – Complex cases benefit from multiple perspectives
- Innovation Access – Faster adoption of new technologies and protocols
- Enhanced Support – More resources dedicated to your care
This is the strength in numbers that defines modern concierge medicine.
Join Our Team
We’re always seeking exceptional healthcare professionals who share our values of uncompromising care, continuous innovation, and genuine human connection. If you’re passionate about practicing medicine at its highest level, we’d love to hear from you.
We’re Committed to Changing Primary Care.
Begin Your Personal Evolution Towards Peak Health Today.
While traditional medicine reacts to problems and standard concierge care prevents them, we help you transcend them. Join Banner Peak Health and discover what peak performance feels like at any age.