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Home / Doctors / Otolaryngology (ENT) / Karen Fong MD

Karen Fong

MD

Cardiology & Internal Medicine
Otolaryngology (ENT)
Antioch office
Sinus Center office
925-906-9780
Walnut Creek office
Internal Medicine office
Texting appointment line: 925-395-4023
Currently Not Accepting New Patients
Currently Not Accepting New Patients
Currently Not Accepting New Patients
Currently Not Accepting New Patients

Main Office

2637 Shadelands Drive Suite A Walnut Creek, CA 94598
2400 Balfour Road Suite 300
Brentwood, CA 94513

Affiliations

American Academy of Otolaryngology (AAO-HNS)
American Rhinologic Society (ARS)
American College of Surgeons

BASS Surgery Center
John Muir Health Walnut Creek Medical Center
San Ramon Regional Medical Center

Sub-specialties

About

Dr. Karen Fong specializes in advanced care for complex disorders of the nose, paranasal sinuses and skull base. Dr. Fong completed her undergraduate degree at Stanford University, where she received a dual B.S. and M.S. in Biological Sciences. She received her M.D. degree from Baylor College of Medicine in Houston, TX. She went on to complete her residency training in Otolaryngology-Head and Neck Surgery at Northwestern University Medical School in Chicago, IL. Following the completion of residency, Dr. Fong spent two years as a NIH post-doctoral research fellow, studying the effects of steroids on olfaction. After completing her residency and post-doctoral research fellowship, Dr. Fong joined the full-time faculty at Oregon Health and Science University in Portland Oregon as a member of the Oregon Sinus Center. In 2007, Dr. Fong moved from Portland to join Dr. Winston Vaughan in Northern California at the California Sinus Centers, where she became the co-director of the Fellowship in Rhinology and Advanced Sinus Surgery at the California Sinus Centers. Dr. Fong has been active as a leader and educator in the field of rhinology. She is an Adjunct Clinical Assistant Professor in the Department of Otolaryngology-Head and Neck Surgery at Stanford University. She has served on the Board of Directors of the American Rhinologic Society (ARS), has chaired the ARS Membership Committee, and has served on the Rhinology and Allergy Education Committee for the American Academy of Otolaryngology. Dr. Fong has authored multiple peer-reviewed papers and speaks nationally on topics related to rhinology and sinusitis. She also participates in multiple clinical research trials related to the field of rhinology. Dr. Fong is a Diplomate of the American Academy of Otolaryngology (AAO-HNS) and a Fellow of the American Rhinologic Society (ARS) and the American College of Surgeons. She has been elected by her peers for inclusion in “Best Doctors in America.” Her practice is centered in the East Bay, and she is on staff at John Muir Medical Center, San Ramon Regional Medical Center, and the BASS Surgery Center. Outside of work, she enjoys golfing, gardening, and spending time with friends and family.

Dr. Audrey "Lisa" Arzamendi is double board-certified in internal medicine and endocrinology. Since 2012, she has specialized in diabetes, obesity and metabolism, thyroid disease (including Hashimoto's and Graves'), polycystic ovary syndrome (PCOS) and sex hormone disorders, adrenal and pituitary dysfunction, osteoporosis, parathyroid/calcium disorders, and thyroid and parathyroid nodules and cancers. She is highly trained in ultrasound-guided fine-needle aspiration (FNA) biopsy of the thyroid (99% diagnostic rate).

Dr. Arzamendi is committed to safe and established medical treatments, and prides herself on staying informed about emerging therapies and research-supported non-prescription options. She is experienced working with all forms of brand-name and generic thyroid medications, and as a type 1 diabetic herself, has first-hand knowledge of nearly all available prescription and technological diabetic treatments, to best support patients in selecting their optimal diabetes treatment regimens.

Dr. Arzamendi graduated with honors from Stanford University, with a BA in Human Biology and a concentration in Health & Human Performance.  She attended UC San Diego School of Medicine (receiving a federal NIH National Cancer Institute fellowship), and completed her internal medicine residency at Kaiser Pemanente’s Santa Clara Medical Center.  Her endocrinology training was completed at UC Davis Medical Center. She previously practiced in California's South Bay before relocating to open her practice in Walnut Creek in 2020. Dr. Arzamendi was a Stanford varsity athlete and still enjoys running, hiking, tennis, rowing, and other outdoor activities. She loves spending time with her husband and many pets, and looks forward to being your doctor!

Conditions Treated

  • Alternative and second opinions in surgical and non surgical conditions
  • Anal Abscess/Fistula
  • Anal Cancer
  • Anal Fissure
  • Anal Incontinence
  • Anal Warts
  • Anorectal Bleeding
  • Colonoscopy
  • Colon Cancer
  • Colorectal Cancer
  • Colorectal Cancer Screening
  • Colorectal Cancer Surgery
  • Constipation
  • Crohn's Disease
  • Diverticular Disease
  • Hemorrhoids
  • Inflammatory Bowel Disease
  • Ostomy
  • Pilonidal Disease
  • Polyps of the Colon & Rectum 
  • Pruritis - ani / anal itching 
  • Rectal Prolapse
  • Rectocele
  • Rectal Cancer
  • Ulcerative Colitis

Conditions Treated

  • Alternative and second opinions in surgical and non surgical conditions
  • Anal Abscess/Fistula
  • Anal Cancer
  • Anal Fissure
  • Anal Incontinence
  • Anal Warts
  • Anorectal Bleeding
  • Colonoscopy
  • Colon Cancer
  • Colorectal Cancer
  • Colorectal Cancer Screening
  • Colorectal Cancer Surgery
  • Constipation
  • Crohn's Disease
  • Diverticular Disease
  • Hemorrhoids
  • Inflammatory Bowel Disease
  • Ostomy
  • Pilonidal Disease
  • Polyps of the Colon & Rectum 
  • Pruritis - ani / anal itching 
  • Rectal Prolapse
  • Rectocele
  • Rectal Cancer
  • Ulcerative Colitis

Conditions Treated

  • Alternative and second opinions in surgical and non surgical conditions
  • Anal Abscess/Fistula
  • Anal Cancer
  • Anal Fissure
  • Anal Incontinence
  • Anal Warts
  • Anorectal Bleeding
  • Colonoscopy
  • Colon Cancer
  • Colorectal Cancer
  • Colorectal Cancer Screening
  • Colorectal Cancer Surgery
  • Constipation
  • Crohn's Disease
  • Diverticular Disease
  • Hemorrhoids
  • Inflammatory Bowel Disease
  • Ostomy
  • Pilonidal Disease
  • Polyps of the Colon & Rectum 
  • Pruritis - ani / anal itching 
  • Rectal Prolapse
  • Rectocele
  • Rectal Cancer
  • Ulcerative Colitis

Education

Medical School:Baylor College of Medicine in Houston, Texas
Residency: Northwestern University Medical School in Chicago, Illinois

Media

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Main Office

2637 Shadelands Drive Suite A Walnut Creek, CA 94598

Affiliations

American Academy of Otolaryngology (AAO-HNS)
American Rhinologic Society (ARS)
American College of Surgeons

BASS Surgery Center
John Muir Health Walnut Creek Medical Center
San Ramon Regional Medical Center

Sub-specialties

Patient Forms

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