An online, fitness membership
designed for your lifestyle.

Crossover12 is a robust health and fitness membership tailored to kickstart your journey to complete wellbeing. Your performance team will guide you towards your custom goals utilizing elite functional exercise programming and scheduled health checkpoints. We measure 12 key health biomarkers and send you a report every 12 weeks on your progress. Our personalized onboarding, monthly personal training sessions, and unlimited group sessions make it easy for you to stay on track.

The best part about it? You can come to your sessions in person or participate remotely on our mobile app. Crossover12 was designed to be a virtual experience so that you can engage with our team from anywhere.

Experience awesome workouts anywhere!

Awesome Workouts Anywhere

(in person or virtual)

We designed Crossover12 as a virtual experience that includes monthly personal training sessions, monthly health coaching visits, unlimited group fitness classes, and a home exercise equipment kit. Track your progress, view on-demand workout sessions, connect with your coaches/peers and monitor real-time performance gains with our Crossover12 mobile app.

Fitness Assessment and Tracking

(in person or virtual)

Our Certified Functional Strength Coaches (CSFC) take members through a fitness assessment, 12 key health biomarkers are measured and your baseline Crossover12 score is calculated. After every 12 weeks, members reconnect one-on-one with the health and strength coaches to measure progress and create a custom plan for continued success on their health journey.

Tailored Exercise Programming

Crossover12 is customized based on our specialized high-intensity training system, each member’s physical function, and your individual fitness goals. Specific areas for improvement are identified and custom programming is created to challenge members of all levels.

Custom Onboarding

(in person or virtual)

Crossover12 is customized based on our specialized high-intensity training system, each member’s physical function, and your individual fitness goals. Specific areas for improvement are identified and custom programming is created to challenge members of all levels.

The first step of a member’s Crossover12 journey is with a Health Coach. This meeting includes coordination of medical home visits, setting smart goals, nutrition planning, and discussing lifestyle modifications. Your health coach will connect with you throughout the 12 weeks to track your progress and help you achieve success.

Crossover12 – $100 Onboarding & $165 Monthly Membership


Get Started
Establish your Baseline Biomarkers with a Certified Strength Coach
(12 measurements)

Tailor your fitness plan with two Personal Training sessions; in-Person or Virtually

Activate your virtual technology with our Intro Webinar

Receive your Crossover12 Membership Kit which includes
resistance bands, yoga block, foam roll, sliders, tennis balls

Month 1 - 3

Stay on Course
Complete Health Coaching sessions at prescribed checkpoints; Biomarker tracking

Schedule one Personal Training session
each month; adjust fitness plan to match your progress and goals

Enjoy unlimited access to Crossover Health Fitness training classes; select your weekly workouts from:
• 4 virtual group classes
• In-person classes offered at four Bay Area locations

Receive your Crossover12 “graduation” tee shirt for completing weeks 1-12

After 12 Weeks

Keep your Momentum
Sustain and continue your fitness progress with full program benefits; including Health Coaching and a health status report every 12 weeks on your biomarkers

Keep your trainer; keep your momentum

No need for gym membership; get awesome workouts, anywhere!

Receive invitations for special Crossove12 events.

Crossover12 Introductory Package | $595

You may use HSA / FSA dollars to pay for the program if your physician provides a signed Letter of Medical Necessity.

This 12-Week Program Includes


  • 3 Personal training sessions-in-person or virtually
  • TrainHeroic mobile app with 12-week programming
  • Direct communication with your coach and Crossover12 cohorts
  • 4 Virtual and/or in-person classes offered per week: 48 in total
  • Health coaching sessions at prescribed checkpoints; track your biomarkers
  • Equipment pack (resistance bands, yoga block, foam roll, sliders, tennis balls)
  • Post-program “graduation” tee shirt

Measuring your success

The 12-week program metrics

Muscular Strength

Learn More

  • Upper body strength
  • Lower body strength


Core Endurance

Learn More

    • Cardiovascular capacity
    • Core endurance

Flexibility and Balance

Learn More

    • Flexibility
    • Balance
    • Mobility

Body Comp

Learn More

    • BMI
    • Lean muscle mass
    • Body fat
    • Waist to hip ratio

Patient Engagement

Learn More

    • PAM score


Meet your Crossover12 Performance Team

Health Coaches

We’ll consult with you on nutrition, stress management and sleep.


Danielle Derr, RD NBC-HWC

Registered Dietitian

Read Bio

Danielle is both a registered dietitian and certified health and wellness coach. In addition to a wealth of knowledge, she brings passion, compassion, practicality and a touch of fun to the coaching partnership.


Members leave coaching sessions feeling encouraged and empowered to take charge of their health. Through more than a decade working as a clinical dietitian and as a health coach, Danielle has extensive experience meeting a variety of needs including weight management, diabetes, high cholesterol, high blood pressure, stress management, pre-natal nutrition, tobacco cessation, sports nutrition, and optimizing energy and performance. Danielle prides herself on the relationships she forms with her members by really getting to know them so that she can provide tailored, holistic and realistic guidance toward goals.


Danielle practices what she preaches by trying to live the healthiest lifestyle without sacrificing the fun and enjoyment of food and physical activity.


Brittany Murray, MPH

Health Coach

Read Bio

Brittany has a holistic approach to health and wellness, which means that she looks at how all areas of your life are connected. Brittany will help you navigate the world of contradictory nutrition and health advice in order to determine what choices are beneficial for you. She acknowledges that people tend to hang onto what they know and what has given them a sense of safety. While working together, you will create a safe, peaceful environment that will empower you to bring forth a newfound sense of confidence bringing you back to balance –physically and mentally. Together you will uncover how all parts of your life affect your wellness, develop a deeper understanding of the food and lifestyle choices that work best for you, learn to listen to your body, and implement these lasting changes.


Brittany was born and raised in New Jersey. She attended The George Washington University in Washington, D.C where she earned a Masters in Public Health. Brittany is the middle child of a very close knot family which she considers her best friends and misses them all being in New York. In her spare time, she loves to workout, attend yoga classes, cook and anything that involves the beautiful California weather.

Strength & Movement Coaches

We’ll design and monitor your personalized 12-week fitness plan.

strength coach

Brendon Rearick, CFSC

Crossover12 Program Director

Read Bio

Brendon’s personal mission is to spread the positive by-products of coaching and movement by using strength and conditioning as his platform. As a member of the Crossover care team, he is on a mission to make physical activity the new “most commonly prescribed drug.”


With a degree in Kinesiology from the University of Massachusetts Amherst, Brendon got his start at Mike Boyle Strength and Conditioning (MBSC) in Woburn, MA. The growth-focused environment at MBSC motivated Brendon in a way he had never experienced. Over a few short years he progressed to become the Program Director and earned his massage therapy license. Soon thereafter, he started an education company with four co-workers – Certified Functional Strength Coach. In just three years, CFSC has certified over 3,000 trainers in over 20 countries.


Now a California resident, Brendon travels and coaches often for Certified Functional Strength Coach, and has recently become an active speaker at the Perform Better summit conferences. With an inexhaustible drive to learn more, practice his craft, and be the best version of himself, Brendon dedicates his free time to continuing education, dancing with his 3-year old daughter, reading, writing, and enjoying in the outdoors.



Allison Tanner, CSFU

Strength Coach

Read Bio

Allison developed a passion for strength and conditioning when she started training to play Division 1 field hockey at Quinnipiac University located in Hamden, CT. While she attended school she was diagnosed with a brain infection that changed her career path and life plan. She began to realize that health should be a priority and that taking care of your body can sometimes be the best form of medicine.


She earned her degree in Health Sciences from Quinnipiac University in May of 2017 and completed several internships before earning her CSCS in 2018. She also has an FMS certification.


Allison believes that exercise is much more than just getting strong or getting fit. She believes that exercise can help improve health status, movement patterns, prolong life expectancy, as well as build confidence.


Outside of the gym, Allison loves to continue to educate herself as much as possible by reading and spending time with other fitness professionals. She also enjoys going to the beach and traveling.


Olivia Egan-Rudolph, CSFU

Strength Coach

Read Bio

With degrees in Environmental Science and Political Theory, Olivia’s career path towards fitness was far from conventional. After graduating from UCSC she took a job in the nonprofit sector but quickly encountered burnout. Long-hours, emotionally taxing and poorly rewarded work were commonplace while self-care was seen as a guilty pleasure, a once-in-a-while feel-good luxury instead of an individual and organizational necessity.Olivia realized that the status quo needed to change. She started a practice of radical self-care where movement became an act of self-preservation, not an indulgence. This decision ultimately led her to pursue a career in fitness.


As a high school and college athlete, Olivia developed a passion for sport at an early age. But it wasn’t until her early twenties that she realized that this passion would be the catalyst for a career in health education and physical fitness. Now she’s on a mission to spread the positive byproducts of movement using strength and conditioning as her platform. As an ACSM Certified Personal Trainer and Certified Functional Strength Coach, Olivia believes that physical activity should be fun, inclusive and effective. She’s a devoted practitioner who believes that exercise is medicine for the body and the mind.

Primary Care Physicians

We’ll consult with the Crossover12 team to address health concerns.


Saba Haq, MD

Primary Care

Read Bio

Healthcare has been in Saba’s blood since her youth. Her parents’ involvement in the oil industry took her around the world for the first 13 years of her life. She spent her wonder years in Southeast Asia and had a chance to see first hand the global need for quality healthcare. She returned with her family to Southern California during her high school years and began her career journey to become the first physician in her family.


Saba attended medical school at UCLA and completed her residency in Emergency Medicine at UC Davis.
She has spent the last 18 years juggling a busy career and raising her children. Saba enjoys staying active with her family. Reading science fiction and playing the guitar are two of her favorite “me time” activities. She lives with her husband and kids in the heart of the Silicon Valley.

Calvin Ly

Calvin Ly, DO

Primary Care

Read Bio

Calvin is a diligent and ambitious individual who strives for quality and excellence; his goal is to deliver quality care to patients. He was valedictorian at Grace Davis high school, graduated with honors at UCSD in Biochemistry and earned the highest distinction of Summa Cum Laude at the Kansas City University of Medicine and Biosciences. Calvin earned his MBA in Health Care Leadership while attending medical school; his class was the second graduating class to take advantage of this dual degree program. His first career after Emergency Medicine training at Case Western Reserve University was with Kaiser in the Emergency Department in the Los Angeles and Orange County regions. He then transferred up to Northern California to take on a new leadership role managing the Cowell Health Center located at Santa Clara University. He honed his communication educational and management skills working with physician assistants, nurse practitioners, registered nurses and medical assistants, while developing memorable memories and rapport with the students at SCU. While working at Santa Clara University, Calvin kept up his emergency skillset by commuting up to San Francisco, working in the Emergency Department at the California Pacific Medical Center (both Davies and St. Luke’s Campuses) and at Chinese Hospital. He applied the Spanish he learned in high school and college and the Cantonese he learned as a child. He believes excellent communication skills are critical and crucial in delivering quality medical care to patients.


Calvin was born and raised in the Central Valley region of California. He is the second child of four children. His parents owned a computer business assembling custom designed desktops to clients, which included the Stanislaus Unified School District. He is the first generation in his family to obtain a four-year college degree. He is the first physician in the family. During his spare time, Calvin loves to be active: run, bike, hike, swim and play tennis and golf. During his down time, Calvin likes to read and watch comedies. Recently, he has been anticipating the new seasons of West World and the Game of Thrones.

Frequently Asked Questions

A 7×7 workout space, workout attire, Zoom capability, and a charged Laptop (or mobile device) with the installed TrainHeroic app (installation is part of onboarding process).

Three online or in-person sessions with a Crossover Coach or via the TrainHeroic app are required with this program. Our friendly coaches will offer support and motivation, and participants are never made to feel guilty for missing a session. We will do our best to provide dates/times that best fit your schedule. We want you to achieve your goals as much as you do.

Nope. You do what is most comfortable for you on any given day. Keep in mind, it is helpful for the Coach to see your movements so that they can make corrections or modifications; and know that you are doing the exercises safely. Other participants may also be showing (or not showing) their screens; and you will be able to hear the Coach speaking with all session participants as a whole or separately, just as you would if you were attending a group class in-person. We also know that the social factor is a fun part of these sessions that drive greater success. We’d love to see your smiling face and for you to get to know your fellow health enthusiasts. “Those who sweat together, stay together.”

For medical reasons, participants may freeze the program and start again once you have medical clearance from a Crossover Health or personal physician. Program registration and appointments are non-transferrable. We are unable to process a refund after 24 hours of the completion date of the first session.

In the instances where a physician determines this program is a medical necessity for you, then you are allowed to use your HSA / FSA dollars to pay for the program. A “Letter of Medical Necessity” signed by your physician will be required at time of payment.

Yes, we offer FitSchool group classes as well as personal training.  Individual and package pricing available. Be sure to check out our BackSchool workshops too.

Yes, you can start a new Crossover12 to reach your next level of fitness goals. You can also add personal training sessions or other visits to our health centers in the Bay Area.