Amy Webster, AGACNP
Internist
Home
San Tan Valley, AZ 85140
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Availability last updated 10/06/2025
Amy Webster, AGACNP
Internist
Home
San Tan Valley, AZ 85140
Teodor Pitea, MD
Teodor Pitea, MD, is a board-certified gastroenterologist and founder of Interventional Endoscopy Associates PLLC in Peoria, Scottsdale, and Phoenix, Arizona.
Dr. Pitea received his medical degree from Iuliu Hațieganu University of Medicine and Pharmacy in Cluj-Napoca, Romania, before moving to the United States in 2001 to pursue a career in gastroenterology. Following a residency in internal medicine, he completed a fellowship in gastroenterology at Mount Sinai Morningside (formerly St. Luke’s-Roosevelt Hospital Center), an affiliate of Columbia University Vagelos College of Physicians and Surgeons. During that time, he also completed a postdoctoral research fellowship on the role of insulin resistance in patients with metabolic syndrome and trained for six months as a hepatology fellow in the Liver Transplant Program at Mount Sinai Hospital. As a gastroenterology fellow, Dr. Pitea discovered his passion for endoscopy, which led him to pursue further training in advanced therapeutic endoscopy under the mentorship of Dr. Stavros Stavropoulos, one of the pioneers of endoscopic surgery, at Winthrop University Hospital in Long Island, New York.
In September 2012, Dr. Pitea launched the Interventional Endoscopy Service at Banner Del E. Webb Medical Center in Sun City West, Arizona. Over the next four years, he spearheaded the building of a new endoscopy unit and developed a highly trained medical team dedicated to interventional endoscopy. Dr. Pitea joined the Digestive Institute at Banner-University Medical Center Phoenix in 2016, and together with Rawad Mounzer, MD, he established the Interventional Endoscopy Service there in collaboration with University of Arizona faculty.
During his role as the Director of Endoscopy and Chief of the Advanced Endoscopy Program, he developed a comprehensive program for the management of acute and chronic pancreatitis, and he has continued to advance the field of endoscopic surgery in Arizona by providing complex, cutting-edge endoscopic interventions.
Dr. Pitea has published multiple abstracts and has been an invited speaker at national conferences. He is a diplomat of the American Board of Internal Medicine as well as the American Board of Gastroenterology.
Dr. Teodor Pitea, MD
Gastroenterologist
9003 East Shea Boulevard
Endoscopy Suite
Scottsdale, AZ 85260
Dr. Ertz-Archambault is triple board-certified in Hematology, Medical Oncology, and Internal Medicine, dedicated to providing expert and compassionate care to patients facing blood disorders and cancers, with a special emphasis in breast cancer.
Dr. Ertz-Archambault has dedicated her career to serving the Phoenix cancer community. She spent over four years caring for the underserved cancer population at Valleywise Health, where she partnered with the breast cancer team honored with The Spirit of Healing Award from the Cancer Support Community of Arizona in 2022. Her commitment extends beyond the clinic through volunteer work, charity educational programs, and quality improvement initiatives for underserved cancer patients.
Dr Ertz-Archambault is an active member of the American Society of Clinical Oncology and the American Society of Hematology. She also serves as an Assistant Clinical Professor at Creighton University, Phoenix School of Medicine, mentoring the next generation of physicians.
Outside of medicine, she enjoys painting, gardening, and spending time with her family
Dr. Natalie Ertz-Archambault, MD
Internist
10460 N. 92nd St.
101
Scottsdale, AZ 85258
Dr. Stephanie Lindauer specializes in Medical Oncology, Hematology and Internal Medicine. Her clinical interests include breast cancer and benign breast disease, gastrointestinal cancer and cancer survivorship.
Dr. Lindauer joined Arizona Center for Cancer Care in 2018. She has held a variety of leadership roles. She was Chief Resident of the Department of Internal Medicine, serving an additional year after completing her residency in San Antonio. She also served as Chief Fellow during her last year of fellowship in San Antonio. Dr. Lindauer has several abstracts and poster presentations at local and national meetings, including ASCO Survivorship Symposium, ASCO Quality Care Symposium and ASH Hematologic Malignancies. She is passionate about engagement within her community and has presented at Updates for the San Antonio Community from the San Antonio Breast Cancer Symposium in 2017.
Dr. Lindauer was drawn to the field of oncology from a young age, having seen the effects of cancer in loved ones. She feels honored to be able to fulfill such an important role now and strives for compassion and empathy with all her patients.
Dr. Lindauer is a member of the American Society of Clinical Oncology and American Society of Hematology. She enjoys spending time with her husband and her chocolate lab.
Patient Reviews:
"I have been seeing Dr. Lindauer for over 2 years. She came highly recommended to me by my Lymphedema Therapist. Dr. Lindauer has been very professional, compassionate and patient with me in informing me of my treatment plan for a rare form of cancer." -Vanessa
"I have been seeing Dr. Lindauer for a year now. I'm so glad my breast surgeon Dr. Naomi Sigalove recommended her. She is very compassionate about her patients. She works with all of my other Doctors to insure that I received the best possible care. She never rushed me through a visit and answered all of my questions. Her staff is awesome to. From the front desk to the treatment area. I can't tell you enough how wonderful everyone really is. I will miss everyone in the office when my treatment is over." -Mary
Dr. Stephanie Lindauer, MD
Internist
10460 N. 92nd St.
200-400
Scottsdale, AZ 85258
Dr. Laeth George grew up in the Phoenix Metro area before completing his undergraduate studies at the University of Arizona in Tucson, Arizona, earning a Bachelor’s degree with Honors in Physiology. He obtained his M.D. from the University of Arizona College of Medicine – Phoenix, where he met his wife. Following this, he completed Internal Medicine residency at Case Western Reserve University Hospitals in Cleveland, Ohio. Thereafter, he completed his fellowship in Hematology and Oncology at the Cleveland Clinic Foundation – Taussig Cancer Center in Cleveland, Ohio.
During these years of training, he published multiple peer-reviewed articles in various medical journals regarding diseases like multiple myeloma as well as kidney cancer. He has presented research at national meetings, including at the 2023 Genitourinary Oncology meeting of the American Society of Clinical Oncology (ASCO).
He is excited to return to Phoenix and help serve the community he and his family consider to be home. He has a strong dedication to the care of patients with Hematologic and Oncologic conditions, and has experience treating a broad spectrum of both common and rare disorders in Hematology and Oncology. He believes in partnering with patients and their loved ones to provide compassionate, holistic, and evidence-based care to achieve the best outcomes possible.
Outside of work, he enjoys spending time with his wife and family, reading, trying new restaurants, and is an avid sports fan.
LinkedIn: www.linkedin.com/in/laethgeorge
Dr. Laeth George, MD
Internist
10460 N. 92nd St.
200-400
Scottsdale, AZ 85258
BIOGRAPHY
Dr. Nagaiah received his medical degree from MGR Medical University in India and has been in practice for more than 20 years. His residency and internship were completed at Mercy Catholic Medical Center in Pennsylvania, and he completed a fellowship at West Virginia University. He earned a Masters in Clinical Research from the MGH Institute of Health Professions in Boston. Dr. Nagaiah has expertise in treating lymphoma, lung cancer, and breast cancer, among other conditions.
PHILOSOPHY
I believe that being an oncologist is a privilege that is not to be taken lightly. I strive to provide evidence-based care that is appropriate to my patients’ particular problem, recognizing and respecting individual patient’s wishes. I take a multidisciplinary approach to care, including alternative therapies that have been shown to be effective.
RESEARCH PUBLICATIONS
LinkedIn:
Dr. Govardhanan Nagaiah, MD
Internist
10460 N. 92nd St.
200-400
Scottsdale, AZ 85258
Robert Tully, MD
Internist
2929 N. 44th Street
Suite 130
Phoenix, AZ 85018
Dr. Laeth George grew up in the Phoenix Metro area before completing his undergraduate studies at the University of Arizona in Tucson, Arizona, earning a Bachelor’s degree with Honors in Physiology. He obtained his M.D. from the University of Arizona College of Medicine – Phoenix, where he met his wife. Following this, he completed Internal Medicine residency at Case Western Reserve University Hospitals in Cleveland, Ohio. Thereafter, he completed his fellowship in Hematology and Oncology at the Cleveland Clinic Foundation – Taussig Cancer Center in Cleveland, Ohio.
During these years of training, he published multiple peer-reviewed articles in various medical journals regarding diseases like multiple myeloma as well as kidney cancer. He has presented research at national meetings, including at the 2023 Genitourinary Oncology meeting of the American Society of Clinical Oncology (ASCO).
He is excited to return to Phoenix and help serve the community he and his family consider to be home. He has a strong dedication to the care of patients with Hematologic and Oncologic conditions, and has experience treating a broad spectrum of both common and rare disorders in Hematology and Oncology. He believes in partnering with patients and their loved ones to provide compassionate, holistic, and evidence-based care to achieve the best outcomes possible.
Outside of work, he enjoys spending time with his wife and family, reading, trying new restaurants, and is an avid sports fan.
LinkedIn: www.linkedin.com/in/laethgeorge
Dr. Laeth George, MD
Internist
2222 E. Highland Ave.
#130
Phoenix, AZ 85016
Dr. Ertz-Archambault is triple board-certified in Hematology, Medical Oncology, and Internal Medicine, dedicated to providing expert and compassionate care to patients facing blood disorders and cancers, with a special emphasis in breast cancer.
Dr. Ertz-Archambault has dedicated her career to serving the Phoenix cancer community. She spent over four years caring for the underserved cancer population at Valleywise Health, where she partnered with the breast cancer team honored with The Spirit of Healing Award from the Cancer Support Community of Arizona in 2022. Her commitment extends beyond the clinic through volunteer work, charity educational programs, and quality improvement initiatives for underserved cancer patients.
Dr Ertz-Archambault is an active member of the American Society of Clinical Oncology and the American Society of Hematology. She also serves as an Assistant Clinical Professor at Creighton University, Phoenix School of Medicine, mentoring the next generation of physicians.
Outside of medicine, she enjoys painting, gardening, and spending time with her family
Dr. Natalie Ertz-Archambault, MD
Internist
2222 E. Highland Ave.
#400
Phoenix, AZ 85016
Dr. Devinder Singh obtained his MD from the Government Medical College in Patiala (Punjab), India. He completed his internship and residency in Internal Medicine from Wayne State University in Detroit, Michigan. Shortly after, he completed his fellowship in Medical Oncology and Hematology from the City of Hope National Medical Center in Duarte, California in 1992. He is board certified in Internal Medicine, Oncology, and Hematology.
In August of 1992, he founded the Arizona Center for Hematology/Oncology and has been servicing the greater Phoenix area since then with his other medical oncology associates. In 2008, in collaboration with Drs. Biggs, Lee, and Reed, the radiation oncology division was established, and the practice name was changed to Arizona Center for Cancer Care. Among his many accomplishments, in 2019 Dr. Singh received the “Oncology Service Award” from Phoenix Cancer Support Network and was nominated as “Best Doctor in Oncology” by Phoenix Magazine. He is a clinical assistant professor at Midwestern Medical University (Glendale campus) and is actively involved in teaching medical students.
Dr. Singh has been married to his wonderful wife, Randeep, since 1982. They have three beautiful children, two daughters, Raman and Rimpi, and one son, Aman, all attending different universities. They also have two Yorkshire terriers, Rusty and Musty, and a playful cat, Millie. In his free time, Dr. Singh enjoys playing golf.
Patient Reviews:
"Dr Singh is by far the BEST oncologist out there!!! He is very knowledgeable and really cares for his patients!!! My hubby had stage 4 lymphoma cancer in 2005 and Dr Singh saved his life!! My hubby is still cancer free today!!!" -Kirsten
"Dr. Devinder Singh was amazing. Not only having great knowledge in treating cancer but very patient and caring when my husband and I walked this journey. Dr. Singh fought alongside us to the very end, he would call and check on my husband after treatments and procedures, his team helped with any insurance issues and approvals and we always felt very special and like we were family. Thank you so much for making this journey a little easier." -Debra
Dr. Devinder Singh, MD
Internist
2222 E. Highland Ave
#130
Phoenix, AZ 85016
Dr. Parmjeet Kumar Banghar specializes in hematology, medical oncology, and internal medicine. He joined Arizona Center for Cancer Care in 2008 when his team at Arizona Center for Hematology and Oncology partnered with the practice.
Currently, Dr. Banghar is a member of the American Society of Clinical Oncology and American Society of Hematology. He has participated in a research study involving cerebrovascular diseases and been published in several journals, including Leukemia Research and the Indian Journal of Medical Sciences. He has also presented on a number of topics, including sonographic evaluation of the spleen in sickle cell syndromes, lennox gastaut syndrome and sweet syndrome in a patient with acute myeloid leukemia.
Patient Reviews:
"This doctor is smart and knows cancer. The staff is the best. My nurses who give me shots are the best! Highly reccomend this office." -Lina
"I have been Dr. Banghar's patient since 2019 and just found out I could give him a review. Wish I had been told this before. He is an excellent provider. He has made me feel confident about my treatment which I think has/had a tremendous amount of impact on my care and the outcome. I would recommend him and the facility in a heart beat." -Felicia
Dr. Parmjeet Banghar, MD
Internist
2222 E. Highland Ave
#130
Phoenix, AZ 85016
BIOGRAPHY
Dr. Nagaiah received his medical degree from MGR Medical University in India and has been in practice for more than 20 years. His residency and internship were completed at Mercy Catholic Medical Center in Pennsylvania, and he completed a fellowship at West Virginia University. He earned a Masters in Clinical Research from the MGH Institute of Health Professions in Boston. Dr. Nagaiah has expertise in treating lymphoma, lung cancer, and breast cancer, among other conditions.
PHILOSOPHY
I believe that being an oncologist is a privilege that is not to be taken lightly. I strive to provide evidence-based care that is appropriate to my patients’ particular problem, recognizing and respecting individual patient’s wishes. I take a multidisciplinary approach to care, including alternative therapies that have been shown to be effective.
RESEARCH PUBLICATIONS
LinkedIn:
Dr. Govardhanan Nagaiah, MD
Internist
2222 E. Highland Ave
#130
Phoenix, AZ 85016
Dr. Jason Samuelian is a Board-certified Radiation Oncologist, with expertise in novel radiation techniques including Intensity Modulated Radiation Therapy (IMRT), Image Guided Radiation Therapy (IGRT), Stereotactic Radiosurgery (SRS), and Stereotactic Ablative Radiotherapy (SABR). He has a particular interest in using new and advanced treatment techniques to minimize side effects. He derives great satisfaction from spending time with his patients and developing relationships with them that last long beyond their cancer care.
Dr. Samuelian joined Arizona Center for Cancer Care in 2015. He earned his Bachelor of Science degree in Exercise Physiology from Brigham Young University, where he graduated cum laude. He earned his medical doctorate at Midwestern University in Glendale, where he was awarded the MICA Scholastic Award in 2008, and graduated with Honors in 2010. He completed an internal medicine internship at Banner Good Samaritan Medical Center, followed by residency training at the Baylor College of Medicine, where he also served as chief resident. In addition, Dr. Samuelian has completed two brachytherapy fellowships — at the MD Anderson Cancer Center and the Seattle Prostate Institute.
Dr. Samuelian is a member of the American Society of Therapeutic Radiation Oncology, American Brachytherapy Society, American College of Radiology, American College of Radiation Oncology, and the American Society of Clinical Oncology. He has been invited to serve on the ASCO Professional Development Committee. He currently serves as Chairman of the Cancer Committee at Banner Boswell Medical Center in Sun City, a program accredited by the Commission on Cancer (CoC).
Dr. Samuelian actively participates in cooperative group clinical trials. His research has been published in peer-reviewed medical journals, and he has presented at national meetings on SABR for COPD patients with early-stage lung cancer, IMRT for the treatment of rectal cancer, and prostate cancer brachytherapy, among others.
Patient Reviews:
"Dr. Samuelian has always been very honest and truthful in presenting us with our options I trust his opinion 100 present and would highly recommend him to anyone seeking his treatment." -Rick
"I have been very impressed with Dr. Jason Samuelian. He seems extremely knowledgeable. I have had several doctors that had horrible bedside manner. Dr. Samuelian has an incredible bedside manner. It was so obvious that he was really concerned with my welfare. I would also like to do a shout out to his support team. They were incredible, and kind. I can't say enough about the entire experience. I'd give him six stars if I could." -Peter
Dr. Jason Samuelian, DO
Radiologist
2222 E. Highland Ave
#130
Phoenix, AZ 85016
Dr. Abhimanyu Ghose clinical interests include treating patients with all types of cancer, including lung, gastrointestinal, breast, genitourinary (bladder, prostate, renal), skin, myeloma, lymphomas, and other blood disorders. Dr. Ghose has more than 25 published peer reviewed articles in field of oncology and has presented at national and international conferences.
Dr. Ghose believes in treating his patients with the same level of respect and compassion he would offer to his family members. He is a strong advocate for his patients. His approach is individualized to each patient because each patient’s condition and situation in life is unique.
In his free time, Dr. Ghose enjoys spending time with his family, dining out, hiking, and traveling. He is also an avid tennis player.
Patient Reviews:
"I have been treating with Dr. Abhimanyu Ghose since my diagnosis in December of 2018. I was diagnosed with Stage IV, Non Small Cell Lung cancer. I began treatment March of 2019 with chemotherapy and Keytruda. After completing chemotherapy I have remained on Keytruda since the beginning. I have been in remission for over a year and my CT scans continue to confirm no evidence of disease. I trust Dr. Ghose and his team to continue to make the best treatment plans possible for me. I also believe Keytruda has been a life saver for me! I continue to have infusions every 3 weeks with little to no adverse reactions. I am grateful to have Dr. Ghose and the infusion nurses taking care of me." -Nancy
"Have had wonderful care by Dr. Ghose thru my cancer treatment and follow ups for last 4 years. He is attentive and caring and positive. Easy to understand his explanations and thorough. Office experiences always efficient." -Jeff
Dr. Abhimanyu Ghose, MD
Internist
2222 E. Highland Ave
#130
Phoenix, AZ 85016
Dr. Justin Goldfarb specializes in medical oncology, internal medicine, and hematology.
Growing up in suburban Detroit, Dr. Goldfarb followed his true passion to become a hematologist and medical oncologist. A published author on topics including lymphoma and breast cancer, he is double board-certified in medical oncology and internal medicine, and fellowship-trained in hematologic disorders and solid tumors.
Dr. Goldfarb earned a bachelor’s degree from the University of Colorado at Boulder and holds a medical degree from Midwestern University in Chicago. He completed an internal medicine residency at Rush University Medical Center in Chicago, followed by a medical oncology fellowship at Baylor University Medical Center in Dallas. With academic appointments at Pritzker School of Medicine at the University of Chicago and Midwestern University, Dr. Goldfarb thoroughly enjoys teaching and mentoring medical students.
Patient Reviews:
"The care I receive from Dr. Goldfarb is exceptional. He listens attentively to my concerns and he provided me with a treatment plan that yields positive results. The entire team at the clinic display a high level of professionalism and make me feel comfortable while I'm there . Nicole Lee is exceptional as well." -Christian
"Dr Goldfarb has been helping me fight lung cancer for two years and is a very caring person." -JC
Dr. Justin Goldfarb, DO
Oncologist
2222 E. Highland Ave
#130
Phoenix, AZ 85016
After graduating from a premier medical school in India, Dr. Fernandes continued her training in Internal Medicine and obtained advanced training in the treatment of blood and cancer disorders in the United States. She was awarded an international prestigious scholarship from the European Society of Medical Oncology and spent time as a visiting fellow in Medical Oncology in Spain.
Her areas of expertise include breast cancers in addition to treating other cancer disorders such as colon cancer, lung cancer, melanoma/skin cancers and blood disorders such as anemias, iron deficiency disorders, abnormal blood counts. She serves as a section editor for Breast Cancer on hemonc.org, an internationally accessed online resource for cancer physicians. She has presented cancer research at national and international cancer meetings in the United States and Europe and volunteers with the American Society of Clinical Oncology for peer review activities.
Dr. Fernandes believes in providing compassionate, exceptional and cutting-edge care to her patients. She strives to provide the most personalized treatment plan for her patients while taking into consideration their unique needs. Having had family members who have also been stricken with cancer, she understands and empathizes with the needs of caring for a loved one with cancer.
Dr. Fernandes enjoys spending time with family, travel, running, and watercolor painting.
Dr. Hermina Fernandes, MBBS, FACP
Internist
2222 E. Highland Ave
#130
Phoenix, AZ 85016