Mesa West Medical

We Are Here To Take Care of Your Health

COVID-19 Vaccination Update

COVID-19 Vaccination Update
Kern County Residents 65 and Older Now Eligible for COVID-19 Vaccination - (January, 13)

Kern County Residents in All 3 Tiers of Phase 1a Now Eligible for COVID-19 Vaccination - (January, 8)

Mesa West Medical recommends all eligible people receive the COVID-19 Vaccination. Mesa West Medical hopefully by March will be giving the vaccination to our patients but, we recommend not to wait . There are multiple sites that are currently giving the vaccine and you may find the sites using the following link.

People with diabetes are at higher risk of becoming seriously ill or dying from COVID-19. Those with diabetes or other chronic diseases should take extra care to protect themselves. Wear a face covering. Social distance. Wash your hands.

William Gilli, M.D.

About The Clinic

About The ClinicAbout The ClinicAbout The Clinic
Mesa West Medical is conveniently located  in the Crowne Point Business Center at:

8327 Brimhall Road
Suite 704
Bakersfield, CA. 93312

Phone # (661) 829-7677
Fax# (661) 679-6920

Mesa West Medical was established in 1993 to serve the primary care needs of the growing population in Bakersfield and the surrounding area. The practice includes Dr. William Gilli, M.D., F.A.C.P. ( Board Certified Internist) and two Nurse Practitioners. Mesa West Medical is accepting new patients (age 16 years and older) and accepting most insurances including Medicare.

Mesa West Medical goal is to provide top-quality medical care with you as our top priority. We strive to make you very satisfied with our care.

As a Primary Care office, Mesa West Medical can provide:
Cardiac Stress Testing
Holter Monitoring
Pulmonary Function Testing
Anti-coagulation Clinic
Diabetic Management
Long Term Medical Management
Annual and Wellness Visits.
Medication Refills
Telephone Calls
Emergency 24 Hour Answering Service

Coronavirus Virus Update

Coronavirus Virus Update

Mesa West now also has Telemedicine

Since the COVID-19 has changed our lives for now as we know it. Mesa West Medical has initiated Telemedicine to supplement our in person clinic visits. We will be converting many of the scheduled in person appointments (if appropriate) to virtual clinic visits. During office hours, we can be reached via the phone (661)829-7677 and through our telemedicine site at  or clicking on  Enter waiting room below.Our goal to keep all patients safer during this pandemic.

Apple releases new COVID-19 app and website based on CDC guidance

Tools Offer Up-to-Date Guidance and Information for People Across the US

The new COVID-19 app and website provide the latest information and guidance from the CDC for users across the US.Apple today released a new screening tool and set of resources to help people stay informed and take the proper steps to protect their health during the spread of COVID-19, based on the latest CDC guidance. The new COVID-19 website, and COVID-19 app available on the App Store, were created in partnership with the CDC,1 the White House Coronavirus Task Force and FEMA to make it easy for people across the country to get trusted information and guidance at a time when the US is feeling the heavy burden of COVID-19.
The COVID-19 app and website allow users to answer a series of questions around risk factors, recent exposure and symptoms for themselves or a loved one. In turn, they will receive CDC recommendations on next steps, including guidance on social distancing and self-isolating, how to closely monitor symptoms, whether or not a test is recommended at this time, and when to contact a medical provider. This new screening tool is designed to be a resource for individuals and does not replace instructions from healthcare providers or guidance from state and local health authorities.

The app and website also offer access to resources to help people stay informed and get the support they need. Users will receive answers to frequently asked questions about COVID-19, including who is most at risk and how to recognize symptoms. In addition, they will learn the most up-to-date information from the CDC like best practices for washing hands, disinfecting surfaces and monitoring symptoms.

Users can answer a series of questions around risk factors, recent exposure and symptoms in order to receive CDC recommendations on next steps. They can also access a set of resources from the CDC to help them stay informed and get the support they need.Along with the new COVID-19 app and website, customers across the US may also ask Siri, “How do I know if I have coronavirus?” to access guidance and resources from the CDC and a curated collection of telehealth apps available on the App Store. This week, travelers landing at select international airports throughout the US started receiving notifications on their iPhone to remind them of current CDC guidance to stay home and monitor their health.

Consistent with Apple’s strong dedication to user privacy, the COVID-19 app and website were built to keep all user data private and secure. The tools do not require a sign-in or association with a user’s Apple ID, and users’ individual responses will not be sent to Apple or any government organization.
Anyone in the US who is 18 years or older can access the screening tool and resources today by downloading the COVID-19 app on the App Store or visiting

7 Wellness Tips During Social Distancing
Karon Warren

The 2020 coronavirus pandemic is forcing people into a new, but temporary, way of life known as “social distancing.” Social distancing means increasing the physical space between people to help prevent spreading illness. Currently, the recommended distance is at least 6 feet.
But social distancing does not mean total isolation. For instance, you can hang out with your family at home. You can talk to neighbors from the comfort of your front porch or back deck. These are good first steps to help maintain your physical and mental well-being during social distancing. Hang on to these tips:

  • 1.Don’t fill up on junk food.

    During social distancing, it can be easy to give into stress, which can include binging on junk food. Instead, it’s important to maintain a diet full of healthy fruits and vegetables, whole grains, lean proteins, and dairy products.
    Fire up the grill and cook up some grilled seafood and roasted veggies. Or throw together a healthy salad filled with your favorite toppings and proteins. Just don’t overdo it with cheese, croutons or salad dressing.

    African American father and young son cooking together in kitchen
  • 2.Keep up your exercise routine.

    Although your regular gym may be closed during social distancing, you still can maintain fitness at home. You’ll find many fitness videos on YouTube that range from Zumba and yoga to Pilates and cardio routines. In addition, many fitness centers are live-streaming fitness classes. Of course, you can always go ‘old school’ and make up your own routine of jumping jacks, push-ups, lunges, planks and other exercises that don’t require a gym membership.
    Bonus: If you are a stay-at-home parent or working from a home office, you can pepper your day with 5 to 6 10-minute bursts of activity instead of one longer workout.

    Home exercise
  • 3.Maintain your schedule as much as possible.

    If your daily routine has changed drastically—for instance, you’re now working from home with the kids underfoot—it may feel impossible to set and maintain a daily routine. However, creating and following a daily schedule and routine can help keep stress at bay and provide a sense of normalcy during social distancing. Craft a personal schedule that includes regular work hours, school work for the kids, time to exercise, daily chores, and time to relax.

  • 4.Stay in touch with family and friends.

    Despite social distancing, staying connected with loved ones is easier than ever. Call and chat with your best friend, FaceTime with your parents, and set up watch parties with friends. Although you may not be sharing the same space, you still will be spending valuable time together, which goes a long way in maintaining togetherness. Using today’s technology is a great way to span distance without risking the spread of illness.

  • 5.Limit time on social media and watching the news.

    Just as today’s technology can keep us connected to friends, loved ones, and coworkers, it also can have an adverse effect if we spend too much time on social media or watching the news. A constant stream of news reports—or worse, speculation—can create increased feelings of anxiousness or distress, which will take a toll on both your physical and mental well-being.
    Don’t be afraid to check in on social media or catch the latest news broadcast, but limit your time with those outlets to one hour a day to avoid increased stress.

    Close-up of remote control pointed at blurred TV screen in background
  • 6.Go outside for some fresh air and sunshine.

    Social distancing does not mean staying sequestered in your home. Take time each day to go outside and enjoy some fresh air and sunshine. Relax in a porch chair and read a good book. Play with the kids in the backyard. You even can set out on a hike at a local park, or go kayaking in a nearby lake or river. As long as you’re not in a crowd and maintain your distance, these activities will greatly benefit your physical and mental well-being, including a good dose of vitamin D. Just don’t forget your sunscreen.

    smiling senior woman with backpack hiking outdoors
  • 7.Don’t forego self-care.

    If you have a full household at home during social distancing, it can be easy to get caught up in taking care of the family at the expense of your own health. Make time for yourself each day to help reduce stress. Take a bubble bath after the kids are in bed, indulge in your favorite sweet treat after dinner, or binge on a couple of episodes of your favorite show. Essentially, take a mental break from daily life, and relax, if even for just an hour.

2020 - 2021 Flu season

2020 - 2021 Flu season2020 - 2021 Flu season2020 - 2021 Flu season
Because of the COVID-19 pandemic, reducing the spread of respiratory illnesses, like flu, this fall and winter is more important than ever. CDC has worked with vaccine manufacturers to have extra flu vaccine available this flu season. Manufacturers have already begun distributing flu vaccine and Mesa West Medical has FLUBLOK QUADRIVALENT Flu Vaccine in stock. CDC recommends getting a flu vaccination in September or October but getting vaccinated anytime during the flu season can help protect you. We are now giving vaccinations without appointments. If worried about coming into our office, we will give the flu vaccine curbside.

Why we chose Flublock this year:

According to a head-to-head randomized controlled trial, FLUBLOK QUADRIVALENT was proven to provide 43 % better protection versus a standard-dose quadrivalent inactivated influenza vaccine

  • 3X more hemagglutinin antigen versus a standard-dose quadrivalent inactivated influenza vaccine
  • Similar safety profile compared to a standard-dose inactivated influenza vaccine
    • Eliminates the need to grow influenza virus during manufacturing, which ensures hemagglutinin antigen cannot adapt or mutate
    • Avoids changes in hemagglutinin antigen structure that can lead to reduced vaccine effectiveness

for more information on FLUBLOK click the link below:

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William E. Gilli, M.D., F.A.C.P.


Dr. Gilli is a Bakersfield native. He attended West High School and graduated from the USC School of Medicine in 1983. Dr. Gilli is Board Certified in Internal Medicine. He is an Assistant Professor of Medicine at UCLA teaching at Kern Medical from 1993 until 2019. At Kern Medical, he has helped teach over 300 physicians for 26 years until retiring from Kern Medical in 2019. Since Retiring from Kern Medical, Dr. Gilli is working full time at Mesa West Medical. He is also a Fellow at the American College of Physicians. In early 2009, Dr. Gilli underwent a total hip replacement and has returned to running. He is an avid walker, runner, cyclist, and skier.

Tracy Simonsen ACNP-C

Nurse Practitioner

Tracy Simonsen received her Bachelor’s Degree from Cal State University Bakersfield in Nursing. She then worked in Intensive Care Medicine for the next 7 years at Kern Medical Center. She obtained her Master's Degree from UCLA in Nursing with a specialty as an Acute Care Nurse Practitioner. Tracy Simonsen has been at Mesa West Medical since 1996. Tracy enjoys tennis and golf.

Kevin Nelson, FNP

Nurse Practitioner (Retired)

Kevin Nelson obtained his Family Nurse Practitioner and Physician Assistant Certificates from Stanford University. Kevin Nelson worked at Mesa West Medical from 2002 until the end of 2019 when he retired. Kevin is currently enjoying his retirement in Grover Beach but will occasionally will be filling in for Dr. Gilli (when Dr. Gilli is off on vacation).


Brenda L.

Office Manager and Billier

Brenda is the office manager and primary biller. She has been at Mesa West Medical since 2002. You can reach her at

Jeanette R.

Front Office and Appointments

Jeanette works in the front office, checking in patients, and working on appointments. She also assists Brenda on billing and CeCe on authorizations. She has been at Mesa West Medical since 2004. Her favorite team is the Oakland Raiders (football). Jeanette can be reached at

CeCe C.

Front Desk and Medical Assistant Supervisor

CeCe has been working at Mesa West Medical since 1999. She id the primary check out receptionist and medical assistant supervisor. She also overseas authorizations and medical record requests. Her favorite teams are the Los Angeles Rams (football) and the St. Louis Cardinals (baseball). CeCe can be reached at

Cassidy S.

Medical Assistant

Cassidy has been working at Mesa West Medical since 2018. She primarily works with Tracy Simonsen. Her long-term goal is becoming a nurse. Her favorite team is the Los Angeles Rams (football). Cassidy can be reached at

Colleen D.

Medical Assistant

Colleen has been working at Mesa West Medical since July 2019. She primarily works with Dr. Gilli. She loves football and University of Oregon is her favorite team. Colleen can be reached at


New Patient Paperwork

New Patient Paperwork

Please double click the New Patient Paperwork form to open Mesa West’s Health Questionnaire so you may print it and complete prior to visiting our office.

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POLST –   Physician Orders for Life-Sustaining Treatment

POLST – Physician Orders for Life-Sustaining Treatment

Please double click the form to open Mesa West’s POLST form so you may also print it and complete prior to visiting our office.

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Advance Care Planning -- More than just a document

Advance Care Planning -- More than just a document

Please double click the form to open the Advance Health Care Directive Form so you may also print it and review prior to visiting our office.

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Release of Records from Kaiser Permanente

Release of Records from Kaiser Permanente

You may print out the release of records form for records from Kaiser Permanente.

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Tips to Avoid the Flu

Tips to Avoid the Flu

Get a Flu Shot! The CDC recommends that people over the age of 6 months get an annual flu shot. and More....

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The heart-healthy Mediterranean diet

The heart-healthy Mediterranean diet

Nutrition and healthy eating The heart-healthy Mediterranean diet is a healthy eating plan based on typical foods and recipes of Mediterranean-style cooking. Here's how to adopt the Mediterranean diet. By Mayo Clinic Staff

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What’s New for the 2019 - 2020 Flu Season?

What’s New for the 2019 - 2020 Flu Season?

Getting an annual flu vaccine is the first and best available way to protect yourself and your family from flu and its potentially serious complications.

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What You Should Know About Influenza (Flu) Antiviral Drugs

What You Should Know About Influenza (Flu) Antiviral Drugs

Can flu illness be treated? Yes. There are prescription medications called “antiviral drugs” that can be used to treat flu illness.

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Shingrix Vaccine for the prevention of herpes zoster (shingles) in adults.

Shingrix Vaccine for the prevention of herpes zoster (shingles) in adults.

Shingles is a condition caused by the varicella zoster virus (VZV), the same virus that causes chickenpox. On October 20, 2017, GlaxoSmithKline announced the FDA approval of Shingrix for the prevention of herpes zoster (shingles) in adults aged 50 years and older.

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Only 23% of Americans Get Enough Exercise, a New Report Says

Only 23% of Americans Get Enough Exercise, a New Report Says

Less than a quarter of Americans are meeting all national physical activity guidelines, according to a new report from the Centers for Disease Control and Prevention’s National Center for Health Statistics (NCHS).

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Contact Us

  • 8237 Brimhall Road Suite 704, Bakersfield, California, United States