Beacon Cancer Care » Providers


A New Approach to Cancer Care

Holistic, Patient-Centered Approach

Every member of our care team strives to provide unparalleled care to our patients. Our physicians and advanced practice providers collaborate closely with patients and their families to create treatment regimens that match each patient’s unique needs while also ensuring that they receive the latest cancer therapies and treatment alternatives.

At Beacon, we put YOU, the patient, first. We treat the whole person, not just the disease.
Our objective is to keep our cancer center and services as patient-centered as possible, meeting each patient where he or she is on their cancer journey. We encourage you and your loved ones to try and experience a new approach to cancer care.


“Working with an incredible team to provide the highest quality of patient care has been an absolute dream come true.”
– Dr. Bartels

Dr. David Bartels

Medical Oncologist & Founder

For Dr. Bartels, practicing medical oncology is a true passion. From the time he began pursuing medicine, he has always had a strong connection to cancer prevention and treatment, and he is dedicated to the advancement of the field and especially to providing exceptional care to all of his patients. As many of them will attest, Dr. Bartels always goes above and beyond for his patients.

Dr. Bartels treats all types of cancer and blood disorders. He opened Beacon Cancer Care for the purpose of creating a cancer center that treats patients and staff as family. “The culture at Beacon is something that I am very proud of—Beacon is often referred to as a happy place, which is not typically the first word that comes to mind when describing a cancer center.”

Dr. David Bartels moved to Coeur d’Alene from Iowa in 2014 and quickly fell in love with North Idaho. Dr. Bartels and his wife Krista are dedicated to the community and wonderful residents of North Idaho. Together they enjoy many of the wonderful outdoor activities the area has to offer, with cycling, snow skiing and fly fishing being a few of Dr. Bartels’ favorites. They also have three young children who keep them on their toes.


Medical School: Des Moines University
Internship: Iowa Methodist Medical Center
Internship – Internal Medicine: University of Iowa, Carver College of Medicine
Fellowship – Hematology/Oncology: University of Iowa, Carver College of Medicine

Dr. Danko Martincic

Medical Oncologist

Dr. Danko Martincic is a medical oncologist at Beacon Cancer Care. He received his graduate degree at the University of Zagreb in Zagreb, Croatia and transferred to the University of Southern California and Vanderbilt University to complete his postgraduate training and education. He has been working in oncology and hematology since 2002 and is also a member of the American Society of Clinical Oncology and the American Society of Hematology.

Dr. Danko has been known to say that he did not choose a career, but a lifestyle. His philosophy is that “people still get sick after 5:00 P.M.,” and he wants to do everything he can to help patients reach a better tomorrow.

Dr. Danko is originally from Croatia and currently resides in Spokane with his wife. He is the proud father of two daughters, and in his free time he enjoys hiking, tennis, traveling, and enjoying the great outdoors.


Medical School: University of Zagreb, Zagreb, Croatia
Postdoctoral Fellowship – Molecular Biology: University of Southern California
Internship – Internal Medicine: Vanderbilt University
Residency – Internal Medicine: Vanderbilt University
Fellowship – Hematology/Oncology: Vanderbilt University


“I went into oncology because I knew it was a hard field and that a lot can be done outside of chemotherapy, which is what is happening right now. It is a field where you need to know and you need to care.”
– Dr. Danko


“My goal is to make my patients’ journey through this unbelievably terrifying experience as positive as possible.”
– Stephanie

Stephanie Hart, ARNP

Oncology Nurse Practitioner

Stephanie is a Nurse Practitioner at Beacon Cancer Care who has been caring for oncology patients for over 20 years. She received both her Bachelor of Science in Nursing and her Master of Science in Nursing as a Family Nurse Practitioner from Washington State University. She is also certified by the American Academy of Nurse Practitioners.

Stephanie is an incredible practitioner with a passion for oncology care. She has 24 years of nursing experience, with 20 of those being in oncology. She has over 10 years of experience as an oncology NP and has worked in many aspects of cancer care, including medical oncology, surgical oncology and radiation oncology. Her special interests include education and symptom management.

Stephanie grew up in a small farming town south of Spokane, Washington. She enjoys outdoor activities with her family, and she is the mother of two — both of whom attend Washington State University. They are all lifelong Cougs!


Master of Science In Nursing: Washington State University
Family Nurse Practitioner: Washington State University

Grace Muliawan, PA-C

Oncology Physician Assistant

Grace is a Physician Assistant who joined the Beacon family in 2020. She found her passion for patient care in oncology during a clinical rotation with Beacon when completing her Master of Physician Assistant Studies at Idaho State University. She loves how oncology brings together her passion of caring for others with medicine, yet makes every individual’s story unique.

Grace also received her Master of Public Health from George Washington University, Bachelor of Science in Microbiology, Immunology & Molecular Genetics from UCLA, and has 14 years of previous patient care experience as a medical assistant in Urgent Care, Women’s Health, and Allergy & Asthma clinics.

In her free time, Grace enjoys anything outdoors and under the sun, country music and rooting on her Dodgers.


Master of Physician Assistant Studies: Idaho State University
Master of Public Health: George Washington University


“Our patients here at Beacon are always inspiring me to grow and learn not just as a provider, but also as a better human being. I am so honored to be a part of their care.”
– Grace


“I give every patient my complete attention and allow him or her to take as much time as they need at each visit.”
– Dr. Samuels

Dr. Brian Samuels

Physician Emeritus

Dr. Samuels is a sarcoma specialist and consultant for Beacon Cancer Care. The uniquely patient-centered philosophy of Beacon completely resonates with how Dr. Samuels has taken care of and related to his patients throughout his career.

During most of his time in North Idaho, Dr. Samuels took care of patients with many different cancers and blood disorders, with the last few years of his career focused specifically on taking care of patients with soft tissue and bone sarcomas. Though he is no longer engaging in direct patient care, he still consults on sarcoma cases and shares his expertise in the field with other Beacon providers.

Dr. Samuels and his wife, Lesley, moved from Chicago to North Idaho in 2004, and enjoyed raising their three children here and becoming members of this wonderful community. They are now transitioning into retirement with lots of travel and time spent with their grandchildren.


Medical School: University of Rhodesia, Godfrey Huggins School of Medicine
Residency – Internal Medicine: Albert Einstein Medical Center Philadelphia
Fellowship – Hematology/Oncology: University of Chicago

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