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We Care for Your Family

Personalized Family Health Care With Extended Hours, Onsite Labs, and a Multilingual Team

Book an Appointment

We Care for Your Family

Personalized Family Health Care With Extended Hours, Onsite Labs, and a Multilingual Team

Book an Appointment

Our Providers

Dr. Phat Hoang

Family Medicine | Medical Director
Dr. Phat D. Hoang is a board-certified family physician and Medical Director at Westview Family Medicine, P.C. in Avondale, Arizona. With more than 30 years of experience, he provides comprehensive primary care for patients of all ages, focusing on preventive medicine, chronic disease management, and patient education.

Dr. Hoang earned his Doctor of Medicine and completed his Family Medicine Residency at the University of Alberta, Canada, where he also graduated with distinction in Mathematics. He is certified by the American Board of Family Practice and the Canadian College of Family Physicians, and holds Advanced Cardiac Life Support (ACLS) certification.

Affiliated with Banner Estrella Medical Center, Dr. Hoang is committed to delivering compassionate, evidence-based care and fostering long-term relationships with his patients.

Catherine Asuncion, M.D.

Dr. Catherine C. Asuncion is a board-certified Internal Medicine physician with more than 20 years of experience in primary care. She is dedicated to providing compassionate, personalized, and evidence-based care for adult patients. Dr. Asuncion completed her residency in Internal Medicine at Mercy Hospital and Medical Center in Chicago and earned her Doctor of Medicine degree from Far Eastern University in Manila, Philippines.

She values building long-term relationships with her patients and is committed to helping them achieve optimal health through preventative care, patient education, and ongoing support.

Thuy Ngan Tieu, FNP- BC.

Thuy Ngan Tieu is a board-certified Family Nurse Practitioner (FNP-BC) with over three years of advanced practice experience and an extensive background as a Registered Nurse. She earned her Master of Science in Nursing (MSN) from Chamberlain University, following her Bachelor of Science in Nursing (BSN) and Bachelor of Science in Biochemistry from Arizona State University.

Dedicated to comprehensive, patient-centered care, Thuy Ngan specializes in primary and preventive care, acute and chronic disease management, behavioral health, and minor procedures. She is deeply committed to patient education and individualized treatment planning to support long-term health and wellness. Fluent in both English and Vietnamese, she takes pride in serving a diverse patient population and ensuring clear, compassionate communication.

Alan Marchbanks, PA-C.

Alan Marchbanks is an experienced Physician Assistant with over 25 years of clinical practice across family medicine, surgery, and urology. He provides comprehensive medical evaluation and treatment for patients of all ages, with a strong focus on preventative care, chronic disease management, and patient education.

Alan is certified by the National Commission on the Certification of Physician Assistants and is a member of both the American Academy of Physician Assistants and the Arizona State Association of Physician Assistants. He holds a Master of Medical Science and a Physician Assistant degree from Midwestern University, as well as a Bachelor of Computer Science from Grand Canyon University.

Paul Bratcher, PA-C.

Paul W. Bratcher is a certified Physician Assistant and Registered Nurse with extensive experience in family practice, internal medicine, and rehabilitation. He earned his Bachelor of Science in Physician Assistant Studies, Summa Cum Laude, from Midwestern University, along with degrees in Nursing and Biology.

Mr. Bratcher has provided comprehensive care in outpatient and inpatient settings, emphasizing preventive medicine, chronic disease management, and patient education. Licensed in Arizona and certified in Advanced Cardiac Life Support, he is committed to delivering compassionate, evidence-based care to patients across all stages of life.

Joslynn Valencia, PA-C.

Joslynn Valencia is a certified Physician Assistant with experience in family and internal medicine, women’s health, pediatrics, and preventive care. She earned her Master of Science in Physician Assistant Studies from A.T. Still University and graduated Cum Laude from California State University, Fullerton, with a degree in Health Science.

Ms. Valencia provides comprehensive primary care with a focus on patient education, wellness, and evidence-based treatment. She is certified in Advanced Cardiac Life Support and Medication-Assisted Treatment and is an active member of the American Academy of Physician Assistants.

Linh Vu, FNP-C.

Linh Vu is a Board-Certified Family Nurse Practitioner who has been serving patients at Westview Family Medicine since 2018. She earned her Master of Science in Nursing from the University of Texas at Arlington.

Prior to joining Westview Family Medicine, Linh gained extensive clinical experience as a Registered Nurse at John Peter Smith Hospital in Fort Worth, providing comprehensive care for patients with complex acute and chronic conditions. She also brings background experience in home health and surgical nursing care. Linh is dedicated to delivering compassionate, patient-centered care and empowering individuals and families to achieve optimal health.

Medicare and most Medicare Advantage plans

AHCCCS (Mercy Care, Mercy Advantage, Health Choice, Az Complete Care, APIPA UHC, Banner University Family...)

Aetna (Commercial and Advantage plan)

Blue Cross Blue Shield (Commercial and BCBS Advantage)

Blue Cross Blue Shield (Commercial and BCBS Advantage)

Cigna ( Commercial and Cigna Medicare Select)

UnitedHealthcare (Commercial UHC Personal Care, UHC Dual Completed, Life Print Medicare)

Cigna ( Commercial and Cigna Medicare Select)

Humana (Commercial and Medicare Advantage)

UnitedHealthcare (Commercial UHC Personal Care, UHC Dual Completed, Life Print Medicare)

Cigna ( Commercial and Cigna Medicare Select)

We Care for Your Family

We Care for Your Family

Family-Focused Care With a Personal Touch

Multilingual Care Team

Multilingual Care Team

Multilingual Care Team

Onsite Diagnostics

Multilingual Care Team

Multilingual Care Team

Extended Access Hours

Multilingual Care Team

Extended Access Hours

Our Providers

Dr. Phat Hoang

Catherine Asuncion, M.D.

Thuy Ngan Tieu, FNP- BC.

Alan Marchbanks, PA-C.

Paul Bratcher, PA-C.

Joslynn Valencia, PA-C.

Linh Vu, FNP-C.

Specialties & Services

Insurance Accepted

Medicare and most Medicare Advantage plans

AHCCCS (Mercy Care, Mercy Advantage, Health Choice, Az Complete Care, APIPA UHC, Banner University Family...)

Aetna (Commercial and Advantage plan)

Blue Cross Blue Shield (Commercial and BCBS Advantage)

Blue Cross Blue Shield (Commercial and BCBS Advantage)

Blue Cross Blue Shield (Commercial and BCBS Advantage)

Cigna ( Commercial and Cigna Medicare Select)

UnitedHealthcare (Commercial UHC Personal Care, UHC Dual Completed, Life Print Medicare)

Cigna ( Commercial and Cigna Medicare Select)

Humana (Commercial and Medicare Advantage)

UnitedHealthcare (Commercial UHC Personal Care, UHC Dual Completed, Life Print Medicare)

Cigna ( Commercial and Cigna Medicare Select)

UnitedHealthcare (Commercial UHC Personal Care, UHC Dual Completed, Life Print Medicare)

UnitedHealthcare (Commercial UHC Personal Care, UHC Dual Completed, Life Print Medicare)

UnitedHealthcare (Commercial UHC Personal Care, UHC Dual Completed, Life Print Medicare)

Ambetter…and many others market place plans

UnitedHealthcare (Commercial UHC Personal Care, UHC Dual Completed, Life Print Medicare)

UnitedHealthcare (Commercial UHC Personal Care, UHC Dual Completed, Life Print Medicare)

Patient Testimonials

Locations & Hours

Avondale Office

Business Hours

Glendale Office

Business Hours

Central Ave/Camelback Office

Business Hours

Make an Appointment

Westview Family Medicine

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