Katie Shannon, DNP is an adult health nurse practitioner.
Sandra K. Birchem, DO is a cardiovascular disease practitioner who practices cardiovascular disease medicine, family medicine, and primary care medicine.
Patrick T. Dunlay, DO is an internal medicine practitioner who practices internal medicine and primary care medicine.
Harinder Singh, MD is a rheumatologist who practices rheumatology and geriatric internal medicine.
Daniel W. Pennington, MD is an internal medicine practitioner who practices internal medicine and primary care medicine.
Gary M. Levinson, MD is a pulmonary disease practitioner who practices pulmonary disease medicine, internal medicine, and primary care medicine.
Bruce Harlan, MD is an internal medicine practitioner who practices internal medicine and primary care medicine.
Richard B. Trimble, MD is an internal medicine practitioner who practices internal medicine and primary care medicine.
Phillip D. Alscher, MD is an internal medicine practitioner who practices internal medicine and primary care medicine.
Anas Al-Khateeb, MD is a pulmonary disease practitioner who practices pulmonary disease medicine, critical care medicine, and student in an organized health care education/training program.
Giancarlo M. Diaz-Zamora, MD is a rheumatologist who practices rheumatology, internal medicine, and primary care medicine.
Amy Tesar, DO is an internal medicine practitioner who practices internal medicine, hospital medicine, and primary care medicine.
Sandra Leticia R. Crosara, MD is an infectious disease practitioner who practices infectious disease medicine, internal medicine, and primary care medicine.
Khaled M. S. Nada, MD is a general acute care hospital.
William B. Paltzer, MD is a family medicine practitioner who practices family medicine and primary care medicine.
David W. Popp, MD is an internal medicine practitioner who practices internal medicine and primary care medicine.
Mark I. C. Hong, MD is a nephrologist renal practitioner who practices nephrology / renal medicine and student in an organized health care education/training program.
Yuvaraj Thangaraj, MD is an internal medicine practitioner who practices internal medicine, nephrology / renal medicine, and primary care medicine.
Douglas T. Summerfield, MD is a critical care medicine practitioner who practices critical care medicine, internal medicine, and primary care medicine.
Alireza Yarahmadi, MD is a clinical neurophysiologist.
Ashley Reuter is an internal medicine practitioner who practices internal medicine and primary care medicine.
Tina J. Reid, ARNP is a nurse practitioner.
Lisa A. Quigley, ARNP is a family nurse practitioner who practices family nurse practice and primary care medicine.
Marie E. Cole, ARNP is a nurse practitioner.
Ashley Fjeldheim, NP is a family nurse practitioner who practices family nurse practice and primary care medicine.
Ashley Matern, ARNP is a family nurse practitioner who practices family nurse practice and primary care medicine.

Our Facilities

Mercyone North Iowa Specialty Care has been registered with the National Provider Identifier database since July 05, 2006 and its NPI numbers are 1609806371 (certified on 07/05/2006) , 1942218441 (certified on 08/03/2006) , 1457701989 (certified on 06/15/2016) , 1093810426 (certified on 09/13/2006) , 1730197492 (certified on 08/04/2006) , 1043321102 (certified on 08/31/2006) , 1912916941 (certified on 08/07/2006) , 1770503146 , 1730193020 (certified on 07/29/2006) , and 1568471597 (certified on 08/07/2006). Mercyone North Iowa Specialty Care is also known as North Iowa Mercy Clinics-Hospitalist (Hospital Medicine Doctor / Hospitalist Practice), Mercy Vascular Medicine Clinic (Cardiovascular Disease Doctor Practice), Mercyone North Iowa Radiation Oncology (Nurse Practitioner Practice), Mercyone North Iowa Behavioral Services Center (Cognitive & Behavioral Psychologist Practice), Mercyone North Iowa Wound Care (Nurse Practitioner Practice), North Iowa Mercy Clinic-Pediatric Hospitalist (Pediatrician Practice), Mercy Network Radiology (Diagnostic Radiologist Practice), Mercyone North Iowa Palliative Care (Family Medicine Doctor Practice), and Mercyone North Iowa Emergency Care (Emergency Medicine Doctor Practice).

Book an Appointment

To schedule an appointment, please call (641) 428-6999.

Internal Medicine

Mercyone North Iowa Specialty Care is an Internal Medicine practice in Mason City, IA with healthcare providers who have special training and skill in the diagnosis, treatment, and care of adults across the spectrum from health to complex illness. Internists specialize in puzzling medical problems and in the ongoing care of chronic illnesses. Internists also specialize in preventing disease by promoting health, and are trained to manage multisystem disease conditions that single-organ-disease specialists may not be trained to address. Internal Medicine Doctors at Mercyone North Iowa Specialty Care perform assessment, diagnosis, prevention, and treatment therapies for diseases and disorders in adult patients. Internal Medicine is a medical specialty focused on study, prevention, assessment, diagnosis, and treatment of short and long term multi-organ conditions. Significant diseases and conditions treated at Internal Medicine practices include cold and flu, heart disease, hypertension, diabetes, obesity, and chronic lung disease. Internists generally act as personal physicians and often develop long-term relationships with their patients. Medical tests, procedures and therapies provided by Internal Medicine practices include medical history reviews, physical exams, blood tests, scans, and other diagnostic tests, as well as specialist referrals. Internists may choose to practice only in the hospital, only in an outpatient clinic, or in both.

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

Internal Medicine Doctors in Mason City, IA