Mesa West Medical

We Are Here To Take Care of Your Health

In an attempt to provide timely and optimal care for our patients, Mesa West Medical had to temporarily closed our panels for new patients. We hope to open up to new patients in early 2023. Thank you for your understanding.  - Dr. William Gilli
Observation of Christmas and New year's day image
In observance of Christmas , Mesa West Medical will be closed on Friday  December 23rd at 1 PM. The office will be open on Tuesday December 27th.
In observance of New Year's Day, Mesa West Medical will be closed on Friday December 30th. The office will be open on Tuesday January 3rd..
Please call 911 if there are any emergencies. 
Mesa West Medical's Portal  image
Mesa West Medical now has a Patient Portal.


You may access the portal at  https://portal.mesawest.com/


 VOTED as one of Kern County's Best Doctor for 2022 image
Dr. William Gilli and Mesa West Medical was nominated as one of 2022 Kern County's Best Doctor / General Practitioner and Best Medical Group.

Dr. William Gilli was voted as one of the favorite General Practitioners

Thank you for your support of Dr. William Gilli and the commitment we have to everyone in Kern County to be your Medical Group of choice.

Dr. William Gilli
Mesa West Medical
COVID-19 Vaccination Update image
Kern County Residents 12 years old and older Eligible for COVID-19 Vaccination -

Mesa West Medical recommends all people receive the COVID-19 Vaccination. There are multiple sites that are currently giving the vaccine and you may find the sites using the following link.

https://kernpublichealth.com/


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. Wash your hands.

Patients that are fully vaccinated for COVID ( without COVID Symptoms) may be seen in person at Mesa West Medical without wearing a mask.

Patients that have not been vaccinated are required to wear masks while at Mesa West Medical.

William Gilli, M.D.

About The Clinic imageAbout The Clinic imageAbout The Clinic image
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:
Electrocardiograms
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 image

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 https://mesawest.doxy.me/website  or clicking on  Enter waiting room below.Our goal to keep all patients safer during this pandemic.








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

Physician

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 biller@mesawest.com

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 appointments@mesawest.com

Amy D..

Front Desk

Amy had been working at Mesa West Medical since September 2021. Her favorite teams are the Los Angeles Dodgers (baseball) and Las Vegas Raiders (football)

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 authorizations@mesawest.com

Alicia V.

Medical Assistant

Alicia has been working at Mesa West Medical since July 2020. She primarily works with Tracy Simonsen and Kevin Nelson. She considers herself as a soccer mom. Her favorite teams are the Las Vegas Raiders (football) and Futbol Club Barcelona (Soccer). Alicia can be reached at nursing2@mesawest.com

Rachel D.

Medical Assistant

Rachel has been working at Mesa West Medical since May 2022. She primarily works with Dr. Gilli. Rachel can be reached at nursing@mesawest.com

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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Release of Medical Information to Family or Friends

Release of Medical Information to Family or Friends

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