Wei Feng, M.D.

877-998-7546
Wei Feng, M.D.
Endocrinologist
Clinical Expertise
  • Diabetes
  • Thyroid Disorders/Thyroid Cancer
  • Pituitary Disorders
  • PCOS
  • Osteoporosis
  • Adrenal Disease
  • Lipid Disorder
  • Obesity and Weight Management
Research Area
  • Diabetes
Other Languages Spoken
German
Mandarin
Academic Appointments
  • Associate Clinical Professor, Department of Diabetes, Endocrinology & Metabolism
Clinical Teams
Diabetes, Endocrinology & Metabolism
Thyroid Cancer

Wei Feng, M.D., is a board certified endocrinologist with expertise in many areas such as diabetes, thyroid, pituitary, osteoporosis, PCOS, obesity, lipid disorder, and adrenal disease. She has been a staff physician at the Department of Diabetes, Endocrinology, and Metabolism at City of Hope since 1998. She joined the faculty of the Department of Endocrinology and Diabetes at City of Hope in 1998.

Born in China, Dr. Feng obtained her medical degree at University of Heidelberg in West Germany in 1987. After completing residency training in internal medicine at University of Memphis in Tennessee, she sought endocrine fellowship training at Cedars Sinai Medical Center. She has diverse clinical experience being hospitalist for a year in 1992 after completing residency training at Memphis Regional Medical Center and a faculty member in the Division of General Internal Medicine at USC between 1995 and 1998.

Dr. Feng has been a principal investigator for several clinical trials involving long term studies of intervention for high-risk diabetic patients to prevent cardiovascular events, treatment for diabetic peripheral neuropathy, islet cell transplant program, and new treatment options for type 1 and type 2 diabetes.

Location

Education & Experience

Degrees

  • 1987, University of Heidelberg School of Medicine, West Germany, M.D.

Fellowship

  • 1993-1995, Cedars-Sinai Medical Center, Los Angeles, CA, Endocrinology and Metabolism, Fellowship

Residency

  • 1990-1992, University of Tennessee, Memphis, TN, Internal Medicine, Residency

Professional Experience

  • 2010 - present, Physician, City of Hope, South Pasadena, CA
  • 1998 - present, Assistant Clinical Professor, Department of Diabetes, Endocrinology and Metabolism, City of Hope, Duarte, CA
  • 2005 - 2010, Physician, Private Practice, Pasadena, CA
  • 1995 - 1998, Clinical Assistant Professor in Medicine, Division of General Internal Medicine, University of Southern California, Los Angeles, CA
  • 1992 - 1993, Instructor in Medicine, Division of General Internal Medicine, University of Tennessee, Memphis, TN

Awards & Memberships

Memberships

  • American Association of Clinical Endocrinologists

  • Endocrine Society

Publications

PARTIAL LIST OF PUBLICATIONS

  • M. Chang Villcreses, R. Karnchanasorn, H. Y. Ou, W. Feng, R. Samoa, L.M. Chuang, K.C., Chiu, The Correction Factor for A1C in Anemic Patients, in: Endocrine Society, 2019.
  • M.M. Chang Villacreses, W. Feng, R. Karnchanasorn, R. Samoa, L.M. Chuang, K.C., Chiu, Underestimation of the Prevalence of Diabetes and Overestimation of the Prevalence of Glucose Tolerance by Using Hemoglobin A1c Criteria, in: Endocrine Society 2019, 2019.
  • R. Samoa M.D., Y. Hsueh, E. Tan, R. Karnchanasorn, H. Ou, W. Feng, L., Chuang, K.C. Chiu, Abnormal Glucose Tolerance Has the Similar Negative Impact on Tooth Loss as Overt Diabetes, in: 2018 Rachmiel Levine-Arthur Riggs Diabetes Research Symposium, 2018.
  • E. Tan, R. Karnchanasorn, H. Ou, W. Feng, R. Samoa, L. Chuang, K.C. Chiu, The Impact on Glucose Tolerance States on Apolipoprotein B Level, ENDO 2018. (2018) ENDO 2018.
  • R. Samoa, E. Tan, R. Karnchanasorn, H. Ou, W. Feng, K.C. Chiu, The Impact on Glucose Tolerance States on Dental Health, ENDO 2018. (2018) ENDO 2018.
  • Y. Hsueh, E. Tan, R. Karnchanasorn, H. Ou, W. Feng, R. Samoa, K.C. Chiu, The impact of glucose tolerance states on RBC indices, ENDO 2018. (2018). ENDO 2018.
  • R. Samoa, Y. Hsueh, E. Tan, R. Karnchanasorn, H. Ou, W. Feng, L. Chuang, K.C. Chiu M.D., Abnormal glucose tolerance has the similar negative impact on dental health as overt diabetes., Invited as a Poster Presentation at 2018 Rachmiel Levine-Arthur Riggs Diabetes Research Symposium, January 31 to February 3, 2018, The Langham Huntington, Pasadena, California. (2018) City of Hope.
  • M. Hyon, R. Karnchanasorn, H. Ou, W. Feng, R. Samoa, K.C. Chiu M.D., L. Chuang, The Rates of Age Related Change of HbA1c, Fasting and 2-Hour Post Challenged Plasma Glucose Concentrations Differ Significantly Between Normal and Abnormal Glucose Tolerant Subjects., in: Selected for a poster presentation (SUN 588) and also selected to receive "Clinical Fellows Abstract Award in Diabetes" at ENDO 2017, April 14 in Orlando, Florida, 2017.
  • J. Lin, R. Karnchanasorn, H. Ou, W. Feng, R. Samoa, L. Chuang, K.C. Chiu M.D., Different Impacts of Glucose Tolerance on The Outcome of Hepatitis A and B Vaccination, in: Selected for a Poster Presenta Has Been Selected for a Poster Presentation (1687 -P) in Category "16-F Epidemiology- Other" at the American Diabetes Association's 77th Scientific Sessions, June 9-13, 2017 in San Diego, California., 2017.
  • R. Karnchanasorn, H. Ou, W. Feng, R. Samoa, L. Chuang, K.C. Chiu M.D., Impact of Glucose Tolerance States on Serum 25 Hydroxyvitamin D Level and Bone Mineral Density, in: Selected for a Poster Presentation (SUN 589) at ENDO 2017, April 14 in Orlando, Florida., 2017.
  • J. Lin, H. Ou, R. Karnchanasorn, W. Feng, R. Samoa, L. Chuang, K.C. Chiu M.D., Viral Hepatitis A Infection Increases the Risk of Diabetes, in: 2016 American Diabetes Association 76th Scientific Sessions June 10-14, 2016 in New Orleans, Louisiana. 179-LB in Category 16-C Epidemiology- Clinical-Diagnosis and Screening. Sunday Jun 12, 2016 12:00 PM - 2:00 PM., 2016.
  • V. Pattan, R. Karnchanasorn, W. Feng, R. Samoa, K.C. Chiu M.D., Cross-sectional associations of serum trace elements and type 2 diabetes in U.S. adults: Variation according to gender and menstrual status (NH ANES 2011-2012), in: Accepted as Poster Presentation at the 2016 Annual Meeting of the Endocrine Society (April 1-4, 2016)., 2017. 
  • T. Sams, R. Karnchanasorn, W. Feng, R. Samoa, K.C. Chiu M.D., Alcohol Consumption and the Risk of Type 2 Diabetes Mellitus, in: 2016 Endocrine Society's 98th Annual Meeting and Expo, Boston, MA {Poster: SAT 662), 2016.
  • Jean Huang, Horng-Yih Ou, Rudruidee Karnchanasorn, Raynold Samoa, Lee-Ming Chuang, Ken C. Chiu, Wei Feng: Fasting Plasma Glucose >126 mg/dl Misses Almost 50 % of Diabetes Mellitus as compared to 2- Hour Postchallenged Plasma Glucose >200 mg/dL. Poster Presentation, (2013) The Endocrine Society's 95th Annual Meeting & Expo.
  • James Lin, Rudruidee Karnchanasorn, Horng-Yih Ou, Jean Huang, Wei Feng, Raynold Samoa, Lee-Ming Chuang, Ken C. Chiu: hepatitis A and B are associated with an Increased Risk for Diabetes Mellitus. Poster Presentation, (2013) The Endocrine Society's 95th Annual Meeting & Expo.
  • Horng-Yih Ou, Rudruidee Karnchanasorn Jean Huang, Wei Feng, Raynold Samoa, Lee-Ming Chuang, Ken C. Chiu: Aging is associated with Progressive Increase in TSH and Progressive Increase in Free T3 and Total T3, but not Free T4 and and Total T4 while Diabetes Mellitus has No Significant Impact on Thyroid Function. Poster Presentation, (2013) The Endocrine Society's 95th Annual Meeting & Expo.
  • Claire Park, Horng-Yih Ou, Jean Huang, Wei Feng, Raynold Samoa, Lee-Ming Chuang, Ken C. Chiu, Rudruidee Karnchanasorn: Comparison of Hb A1 C>6.5 % and 2-Hour Plasma Glucose >200 mg/dl Criteria in Diagnosis of Diabetes Mellitus. Poster Presentation, (2013) The Endocrine Society's 95th Annual Meeting & Expo.
  • Rudruidee Karnchanasorn, Jean Huang, Horng-Yih Ou, Wei Feng, Raynold Samoa , Lee-Ming Chuang, ken C. Chiu: 2-Hour Plasma Glucose Increases Much Faster with Age in Abnormal Glucose Tolerant Subjects Than Glucose Tolerant Subjects, While No Difference in Fasting Plasma Glucose. Poster presentation. (2013) 73rd ADA Scientific Sessions.
  • Horn-Yih OU, Jean Huang, Rudruidee Karnchaasorn, Wei Feng, Raynald Samona, Ken C Chiu, Lee-Ming Chuang: A1 c >6.5 % Missed the Majority of Diabetic Patients Defined by Plasma Glucose. Poster Presentation. (2013) 73rd ADA Scientific Sessions.
  • Feng Miao, D.Smith, L. Zhang, A. Min, Wei Feng, Rama Natarajan: Lymphocytes from patients with type 1 diabetes display a distinct profile of chromatin histone H3 lysine 9 dimethylation: an epigenetic study in diabetes Diabetes (2008) Dec;57(12):3189-98.
  • Fariba Rahnema, Sam Pourbabak, Mohamad Al-Sayed, Everett Chang, Connie Kwan, Wei Feng, Ken C. Chiu: Circulating high Molecular Weight Adiponectin Level are Related to Obesity but not to Insulin Sensitivity in Health and Glucose Tolerant Caucasians. (2007) ADA Annual Scientific Sessions.
  • Prasanth N. Surampudi, Mohamad Al-Sayed, Everett Chang, Connie Kwan, Wei Feng, Ken Chiu: Failure of Beta Cell Compensation in Glucose Tolerance Subjects with Increasing Insulin Resistance. (2007) ADA 67th Annual Scientific Sessions.
  • Ken C. Chiu, Horng-Yih Ou, Ta-Jen Wu, Everett Chang, Connie Kwan, Wei Feng: The Impact of Obesity on the Relationship of serum 25-Hydrosyvitamin D with Insulin Sensitivity and Beta Cell Function. (2007) ADA 67th Annual Scientific Sessions.
  • Yen, Chu, and Feng: Paraneoplastic syndrome in cancer: case 3. Parathyroid Hormone-Related Hypercalcemia in Cholangiocarcinoma. JCO Jun 1 (2004); 2244-2245.
  • Diabetes Prevention Trial-Type 1 Diabetes Study Group [Feng W-Study Group Member]. Effects of Insulin in Relatives of Patients with Type 1 Diabetes Mellitus. New England Journal of Medicine (2002) 346: 1685-1691.
  • Yu L, Cuthbertson DDM Maclaren N, Jackson R, Palmer JP, Orban T, Eisenbarth Gs, Krischer JP, DPT-1 Participating Investigators [Feng W-Study group member]. Expression of GAD65 and Islet Cell Antibody (ICA512) Auto Antibodies Among Cytoplasmic ICA+ Relatives Is Associated With Eligibility for the Diabetes Prevention Trial-Type 1. Diabetes (2001) 50:1735-1740.
  • Chase HP, Cuthbertson DD, Dolan LM, Kaufman F, Krischer JP, Schatz DA, White NH, Wilson DM, Wolfsdorf J, The Diabetes Prevention Trial-Type 1 Study Group [Feng W-Study group member]. First-phase Insulin Release during The Intravenous Glucose Tolerance Test As A Risk Factor For Type 1 Diabetes. Journal of Pediatrics (2001); 244-249
  • Greenbaum CJm Cuthbertson D, Krischer JP, and the Diabetes Prevention Trial of Type 1 Diabetes Study Group [Feng W, study Group Member]. Type 1 Diabetes Manifested Solely by 2-h Oral Glucose Tolerance Test Criteria. Diabetes (2001); 50:470-476.

Ratings & Reviews

Ratings and reviews below are gathered from the Press Ganey Clinician and Group Consumer Assessment of Healthcare Providers and Systems (CG CAHPS) survey. CG CAHPS is a standardized survey that is used to measure a patient's experience in the physician office setting. Ratings are an average of all responses to questions about a provider's care, with five stars being the highest.
4.9
Show respect for what you say
4.8
Provider explain in way you understand
4.8
Provider listen carefully to you
4.8
Know important info medical history
4.8
Spend enough time with you
4.7
Recommend this provider office
4.7
Rate provider 0-10
04/17/26
Everyone in the office, along with Dr. Feng, are always terrific! - Verified patient
04/15/26
Appeared Impatient when asked for explanations of tests and treatments, did not seem to understand patient's concerns. - Verified patient
04/10/26
Dr. Feng is very thorough in everything. She reads my medical record and discuss with that would be a concern to her/me. She responds to my email expeditiously with clear explanations/instructions/advice. - Verified patient
04/03/26
Excellent - Verified patient
04/03/26
Excellent - Verified patient