Alaska Native Epidemiology Center

ANTHC Alaska Native Epidemiology Center photos of EpiCenter staff

About Us

The Alaska Native Epidemiology Center (EpiCenter) is located within the Alaska Native Tribal Health Consortium's (ANTHC) Community Health Services, in Anchorage, Alaska.

The EpiCenter provides public health and epidemiologic services to tribal health organizations and the tribal communities they serve.

ANTHC provides the highest quality health services for Alaska Native and American Indian people at the Alaska Native Medical Center and across Alaska through training, health education, disease and injury prevention, and rural water and sewer construction.

EpiCenter Staff

Dr. Ellen Provost photo

Ellen Provost, DO, MPH

EpiCenter Director

Dr. Provost has served the Alaska Tribal Health System for over 25 years, and has been Director since 2005. She initially arrived in Bethel, Alaska in 1990 to work with YKHC as a Commissioned Officer in the US Public Health Service. She is a physician specializing in Preventive Medicine and Public Health.

Dr. Carla Britton photo

Carla Britton, PhD

Lead Epidemiologist

Dr. Britton came to the EpiCenter after completing a two year CDC Epidemic Intelligence Service fellowship with the Idaho Department of Health and Welfare. Carla holds an MS in Environmental Health and a PhD in epidemiology from the University of Iowa.

Nanette Star photo

Nanette Star, MPH

Senior Epidemiologist

Ms. Star joined the EpiCenter in 2018. She serves as Program Manager of the TEC Public Health and Infrastructure grant. A descendant from the Choctaw Nation of Oklahoma, she holds an MPH in Global Health and a Graduate Certificate in Epidemiology.

Sarah Nash photo

Sarah Nash, PhD, MPH

Cancer Surveillance Director

Dr. Nash joined the EpiCenter in 2015. She serves as the Director of the Alaska Native Tumor Registry and the Principal Investigator for the Alaska Surveillance, Epidemiology and End Results (SEER) Program of the National Cancer Institute. She holds a PhD in Biological Sciences, and an MPH.

Dr. Diana Redwood photo

Diana Redwood, PhD

Senior Epidemiologist

Joining ANTHC in 2004, Dr. Redwood conducts research studies on colorectal cancer screening methods and prevention. Diana holds a PhD in public health, an MPH, and an MS in Nutrition.

Erin Peterson photo

Erin Peterson, MPH

Senior Epidemiologist

Ms. Peterson joined the EpiCenter in 2015. She specializes in chronic disease prevention, and manages the CDC Wellness Strategies for Health (WSH) Program. Erin holds an MPH from Emory University.

Romy Mohelsky photo

Romy Mohelsky, MPH

Senior Program Manager

Ms. Mohelsky joined the EpiCenter in 2011 and manages the Network Coordinating Center for the Tribal Epidemiology Centers Public Health Infrastructure Program. Romy holds an MPH from the University of Waterloo.

Bourke Betz photo

Bourke Betz, MS


Mr. Betz joined the EpiCenter in 2016 and offers expertise in epidemiology and evaluation. He grew up in Wainwright and Kwigillingok. He holds an MS in Epidemiology from the University of Washington.

Taija Revels photo

Taija Revels, MPH


Ms. Revels joined the EpiCenter in 2017. She specializes in social and economic determinants of health and policies, systems, and environmental change for the WSH program. She belongs to the Kaagwaataan Lingít clan in southeast Alaska. She holds an MPH from Columbia University, and a CPH.

Tim Collins photo

Timothy Collins, MS


Mr. Collins joined the EpiCenter in 2018 as an epidemiologist supporting substance use-related initiatives. He holds an MS in psychology and is pursuing a Master of Public Health from the Keck School of Medicine, University of Southern California. He is a member of the Sault Ste. Marie Tribe of Chippewa Indians.

Ian Blake photo

Ian Blake, MS

Health Statistician

Mr. Blake joined the EpiCenter in 2014, providing statistical and database support to a variety of EpiCenter projects. His background includes healthcare, fisheries, education, and environmental research. Ian holds an MS in Statistics.

Christine Tait photo

Christine Tait, BS

Senior Marketing Media Specialist

Ms. Tait joined the EpiCenter in 2015, bringing more than 20 years of graphic design experience. She provides website, graphic design, photography, illustration, and social media support. Christine holds a BS in Visual Communication/Graphic Design.

Matthew Bailey photo

Matthew Bailey, BFA

Marketing Media Web Specialist

Mr. Bailey joined the EpiCenter in 2015. He provides website and graphic design support for EpiCenter projects including the National Coordinating Center. Matthew holds a BFA in Visual Communication with a Graphic Design emphasis.

Dr. Kristen Mitchell photo

Kristen Mitchell, DrPH

Program Evaluator

Dr. Mitchell joined the EpiCenter in 2015 and is currently the Program Evaluator for the National Coordinating Center for a Building Tribal Public Health Infrastructure grant. Kristen holds a DrPH in Public Health and an MPH.

Weather Potdevin photo

Weather Potdevin, BS

Program Evaluator

Ms. Potdevin joined the EpiCenter in 2018, and is the Program Evaluator for the CDC Wellness Strategies for Health (WSH) Program. She grew up in Juneau, and is Koyukon Athabascan. Weather is pursuing her MA in Program Evaluation from Michigan State University.

Teresa Schade photo

Teresa Schade, CTR

Tumor Registrar II

Ms. Schade joined the Alaska Native Tumor Registry in 2009. In her role as SEER Program Manager she collects cancer information for Alaska Native people statewide, and oversees the registry's data management system. She received her Certified Tumor Registrar certificate in 2013.

Garrett Zimpelman photo

Garrett Zimpelman, BA


Mr. Zimpelman joined the EpiCenter in 2016 as a Computer Programmer/Analyst for the Alaska Native Tumor Registry (ANTR). Garrett’s duties include data management, database design and implementation, computer programming, and data analysis.

Rochelle Greenley photo

Rochelle Greenley, BAS

Program Assistant

Ms. Greenley joined the EpiCenter as a Patient Navigator in 2013, and has been with ANTHC since 2004. Rochelle grew up in the Yup'ik village of Togiak. She holds a BAS in Environmental Studies.

Amie Haakenson photo

Amie Haakenson

Special Projects Coordinator

Ms. Haakenson joined the EpiCenter in 2010. Amie provides support for the CDC Wellness Strategies for Health (WSH) Program and other EpiCenter projects.

Patricia Ruuti photo

Patricia Ruuti

Program Administrator

Ms. Ruuti joined the EpiCenter in 2009. As a member of the Oneida Nation of Wisconsin, she served her tribe for 23 years. She provides administrative support to the EpiCenter.

Annie Okpealuk photo

Annie Okpealuk

Senior Office Specialist

Ms. Okpealuk joined the EpiCenter in 2014. She is pursuing a degree in Business Administration Management, with a minor in Alaska Native Business Management. She is from the Maniilaq region.

Annie Hansellk photo

Annie Hansell

Senior Office Specialist

Ms. Hansell joined the EpiCenter in 2017. She provides support for the CDC Tribal Epidemiology Centers Public Health Infrastructure Program. Annie is from the Inupiaq village of Shaktoolik in the Bering Strait region.

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