Sheridan Memorial Hospital

Wildeman, Marcella, DNP, FNP-BC

Northeast Wyoming Pediatric Associates916 Jackson AvenueSheridan, WY, 82801 307.675.5555 About Marcella Wildeman, DNP, FNP-BC Dr. Wildeman is a doctorate prepared nurse practitioner board certified in family practice. She completed her DNP program at the University of Wyoming and received her Bachelor of Science in Nursing from the University of Nebraska Medical Center. Her education [...]

Ferris, Andrew, MD

Big Horn Anesthesia Associates, LLC 1401 West 5th Street Sheridan, WY, 82801 Billing— 307.674.5123 Anesthesiologist Dr. Andrew Ferris, a Sheridan native, returned to his hometown in 2025 to work at Sheridan Memorial Hospital. “Sheridan Memorial Hospital is demonstrative of our community’s goals to always build something bigger and better,” he said. “It’s nothing like corporatized [...]

Leary, Luke, MD

Sheridan Memorial Hospital – Hospitalist1401 West 5th StreetSheridan, WY, 82801 307.672.1000 AboutOriginally from Oxford, Mississippi, Dr. Luke Leary comes to Sheridan after spending the last three years completing his medical residency in Billings, Montana.Dr. Leary will serve as a hospitalist, caring for individuals on the in-patient unit of Sheridan Memorial Hospital.Ample opportunities for outdoor recreation, [...]

Ferris, Kelsey, MD

Sheridan Memorial Hospital – Emergency MedicineSheridan, WY, 82801 307.672.1000 AboutOriginally from Utah, Dr. Kelsey Ferris discovered her love for medicine through her passion for movement and martial arts, while her draw to emergency medicine centered on the challenge of problem-solving in critical moments.“My favorite part of emergency medicine is ‘cracking the code,’” she said. “Somebody [...]

Mullen, Lisa, MD

Primary Care61 South Gould StreetSheridan, WY 82801 307.675.2690 About Dr. Mullen Medical SchoolMD - University of Washington Seattle Internship/Residency/FellowshipFamily Medicine Residency of Boise, Idaho Board Certification/AffiliationsAmerican Board of Family Medicine

Ulibarri, James A, MD

Spine Center of the Bighorns 1333 West 5th Street, Suite 113 Sheridan, WY, 82801 307.675.2633 About Dr. James Ulibarri Spine Center of the Bighorns is the premier spine and orthopedic practice of the Northern Rockies. Dr. Ulibarri leads a team of board-certified physicians and physician assistants in delivering top-rated surgical care and solutions. Dr. Ulibarri [...]

Mischke, Katie, MPAS, PA-C

Spine Center of the Bighorns 1333 West 5th Street, Suite 113 Sheridan, WY, 82801 307.675.2633 About Katie Mischke As Dr. Ulibarri’s physician assistant, Mischke delivers total joint care and operative procedure assistance, while ensuring clear communication between each patient and care provider. She brings more than eight years of experience focused on neurosurgery and spine [...]

Schoonover, Sean, MPAS, PA-C

Spine Center of the Bighorns 1333 West 5th Street, Suite 113 Sheridan, WY, 82801 307.675.2633 About Sean Schoonover Sean Schoonover has served as Dr. Ulibarri’s physician assistant for more than nine years. He specializes in general orthopedics, neurosurgery and spine with a focus on cervical, thoracic, lumbar and spinal interventions. Schoonover delivers direct patient care [...]

Fischer, Laura, AGACNP-BC

Sheridan Green House 2311 Shirley Cove Sheridan, WY, 82801 307.672.0600 About Laura Laura is a board-certified adult gerontology primary care nurse practitioner. Laura grew up on her family farm about 30 minutes outside of Grand Rapids, Michigan. Her passion for healthcare and geriatric medicine began when she worked as a Certified Nursing Assistant at [...]

Dunn, Emma, PA-C

Sheridan Memorial Hospital – Hospitalist 1401 West 5th Street Sheridan, WY, 82801 307.672.1000 About Emma Dunn, PA-C Emma Dunn, PA-C, joined Sheridan Memorial Hospital’s Hospitalist team in January 2025. A South Dakota native, Emma first discovered Sheridan, WY, during her 2019 PA school rotation at the Welch Cancer Center. She and her husband, Jake, [...]

Villegas, Ryan, DO

Sheridan Memorial Hospital – Hospitalist 1401 West 5th Street Sheridan, WY, 82801 307.672.1000 About Dr. Villegas is a board-certified hospitalist physician specializing in internal and hospital medicine. Medical School DO — Touro University California College of Osteopathic Medicine Residency/Fellowships Arrowhead Regional Medical Center, Internal Medicine Residency Board Certification/Affiliations American Osteopathic Board of Internal Medicine

Beverly, Steven, MD, MS, FACOG

Women’s Clinic– OB/GYN 1333 West 5th Street, Suite 210 Sheridan, WY, 82801 307.672.2522 About Dr. Steven Beverly Dr. Beverly’s journey to medicine began with a passion for math, science, and teamwork, which he discovered while initially considering a career in engineering. During medical school, he found his calling in OB-GYN, a specialty he describes as [...]

Kinney, Michael, MD

Behavioral Health Located inside: Addiction and Internal Medicine Clinic 1333 West 5th Street, Suite 200 Sheridan, WY, 82801 307.675.2674 About Dr. Michael Kinney Dr. Michael Kinney brings a wealth of experience in adult psychiatry and addiction medicine to Sheridan Memorial Hospital. Raised in a rural town near Olympia, Washington, Dr. Kinney earned his medical degree [...]

Kim, Christian, MD

Welch Cancer Center – Hematology/Oncology 1585 W. 5th Street Sheridan, WY, 82801 307.674.6022 About Dr. Kim Dr. Kim is originally from Philadelphia, PA and recently comes from the outskirts of Sacramento, CA where he has been practicing Medical Oncology since 2007. Dr. Kim is Board Certified in Medical Oncology with a Fellowship in Hematology/Oncology from [...]

Turnbough, Abigail, DO, FACR

Rheumatology / Internal Medicine 1333 West 5th Street, Suite 203 (Outpatient Center – 2nd Floor) Sheridan, WY, 82801 307.675.4474 NOW Accepting New Patients - Dr. Abigail Turnbough - REFERRAL form About Dr. Turnbough Dr. Abigail Turnbough joins Sheridan Memorial Hospital as a Rheumatologist alongside Dr. Benjamin Widener, starting July 30, 2024. A Wyoming native, Dr. [...]

Slyngstad, Tyler J, MD

Heart Center – Cardiologist 1333 W. 5th Street, Suite 103 Sheridan, WY, 82801 307.675.4610 About Tyler Slyngstad, MD Please welcome Dr. Tyler Slyngstad as an interventional cardiologist who has begun seeing patients at our Sheridan Memorial Hospital Heart Center as of May 20, 2024. Dr. Slyngstad's primary office is at Intermountain Health Heart & Vascular [...]

Schmidt, Joseph, DNP, FNP-C

SameDay Health & Imaging 1470 Sugarland Drive, Suite 1 Sheridan, WY 82801 307.673.2411 Education Montana State University - Doctorate of Nursing Practice, Family Nurse Practitioner Board Certification/Affiliations American Association of Nurse Practitioners

Wickersham-Frey, Tracy, PA-C

SMH Emergency Medicine 1401 W 5th Street Sheridan, Wyoming 82801 307.672.1100 Education University of Washington MEDEX Northwest - Masters of Clinical Health Sciences, Physician Assistant Board Certification Certified By The National Commission On Certification Of Physician Assistants (NCCPA)

Peterson, Daniel L, DPM, FACFAS

Sheridan Orthopedic Associates PC 1050 Mydland Road Sheridan, WY, 82801 307.674.7469 About Dr. Daniel L. Peterson specializes in total ankle replacement, foot and ankle arthritis, Charcot reconstruction with external fixation, ankle arthroscopy, bunion and hammertoe correction, foot and ankle fractures, sports injuries and flatfoot deformity. He earned his undergraduate degree in psychology from Brigham Young [...]

Sloan, Tanja, PA-C

Heart Center 1333 W. 5th Street, Suite 103 Sheridan, WY, 82801 307.675.4610 About Tanja Sloan Tanja Sloan specializes in Cardiology. Hailing from Cowley, Wyoming, she has a deep appreciation for the small-town charm that Sheridan offers, from its close-knit community to the breathtaking mountains and the ease of access to outdoor activities. In her free [...]

Mayer, Thomas O, MD

Sheridan Neurology, PC 1050 Mydland Road Sheridan, WY, 82801 307.673.6300 Medical School University Of Indiana Residency/Fellowships Indiana University School Of Medicine; Board Certification/Affiliations American Board Of Psychiatry And Neurology, American Academy Of Neurology

Henderson, Erin, MD, FACP

Primary Care Practice 61 South Gould Street Sheridan, WY 82801 307.675.2690 Scheduling Now for December 2023 Appointments About Dr. Henderson Dr. Henderson is a board-certified Internal Medicine physician. Born and raised in Minnesota, she moved to Colorado after college to attend medical school and residency. She practiced Internal Medicine in Cortez, Colorado for [...]

Peters, Michael, MD

Big Horn Anesthesia Associates, LLC 1401 West 5th Street Sheridan, WY, 82801 Billing— 307.674.5123 Medical School MD, Sidney Kimmel medical College at Thomas Jefferson University Residency/Fellowships Residency, University of Utah Health, Anesthesiology Board Certifications/Affiliations American Board of Anesthesiology

Frank, Krista, DNP, CNM, FNP-C

Women’s Clinic– OB/GYN 1333 West 5th Street Suite 210 Sheridan, WY, 82801 307.672.2522 About Krista Frank Krista Frank specializes in women’s health. Raised in Sioux City, Iowa, she values the similarities in culture and the family-friendly way of life that Sheridan provides. In her free time, Krista enjoys getting outside with her family to camp, [...]

Zemore, Zachary M, MD

Sheridan Memorial Hospital – Hospitalist1401 West 5th StreetSheridan, WY, 82801 307.672.1000 AboutDr. Zemore is a board-certified hospitalist physician specializing in internal and emergency medicine. Medical SchoolMD - Virginia Commonwealth University School of Medicine - Richmond, VA Residency/FellowshipsVirginia Commonwealth University School of Medicine - Richmond, VA Board Certification/AffiliationsAmerican Board of Internal MedicineAmerican Board of Emergency Medicine [...]

Dawson, Allison, MD

Palliative Care 1585 West 5th Street Sheridan, WY, 82801 307.674.6022 Dr. Allison Dawson is now accepting new palliative care patients. About Dr. Dawson Dr. Dawson specializes in Internal Medicine and is trained in Palliative care and Hospice medicine. Originally from Cheyenne, she values the Wyoming way of life and everything that Sheridan has [...]

Dickey, Tyler, MD

SMH Emergency Medicine1401 W. 5th StreetSheridan, WY, 82801 307.672.1100 About Dr. Dickey Dr. Dickey is a board-certified Emergency Medicine physician. Having grown up in Henry, Nebraska, he values the small-town feel of Sheridan, from its close-knit community to its many opportunities for outdoor recreation. In his leisure time, Dr. Dickey enjoys hiking and fishing in [...]

Barrett, Autumn, MPAS, PA-C

Sheridan Neurology, PC 1050 Mydland Road Sheridan, WY, 82801 307.673.6300 Special Areas Of Practice Hospital Medicine Education Rocky Mountain College Physician Assistant Program – Masters In Physician Assistant Studies Certified By The National Commission On Certification Of Physician Assistants (NCCPA)

Mangus, Barry E, MD

Big Horn Surgical – General Surgeon1333 W. 5th Street, Suite 111Sheridan, Wyoming 82801 307.673.3181 Special InterestsLaparoscopy, Hepatobiliary, Thoracic, Endoscopy Medical SchoolMD – University Of Utah School Of Medicine Residency/FellowshipsUniversity Of Kansas School Of Medicine – Surgical ResidencyUniversity Of Kansas School Of Medicine – Surgical Internship Board Certification/AffiliationsNational Board Of Medical ExaminersAdvanced Cardiac Life SupportAdvanced Trauma Life SupportInstructor [...]

Maguire, Sara C Smith, MD, FACS

Big Horn Surgical – General Surgeon1333 W. 5th Street, Suite 111Sheridan, Wyoming 82801 307.673.3181 Medical SchoolMD – University Of Louisville School Of Medicine Residency/FellowshipsUniversity Of Colorado Denver – Surgical InternshipUniversity Of Colorado Denver – Surgical Residency Board Certification/AffiliationsDiplomate, American Board Of SurgeryAmerican Society Of Breast SurgeonsAssociation Of Women SurgeonsAdvanced Trauma Life Support InstructorFellow Of The American College [...]

Jost, Corey J, MD, FACS

Big Horn Surgical – General & Vascular Surgeon1333 W. 5th Street, Suite 111Sheridan, Wyoming 82801 307.673.3181 Special InterestsCarotid Surgery, Endovascular (Stent) Surgery Medical SchoolMD – University Of Kansas School Of Medicine Residency/FellowshipsUniversity Of Kansas School Of Medicine – General Surgery ResidencyThe Mayo Graduate School Of Medicine – Clinical & Research Fellow In Vascular Surgery Board Certification/AffiliationsDiplomate American [...]

Bateman, Scott N, MD

Sheridan Ear, Nose, & Throat 330 W. Dow Sheridan, WY, 82801 307.672.0290 Medical School MD – University Of Texas At San Antonio Residency/Fellowships University Of Texas At San Antonio – Surgical Internship University Of Texas At San Antonio – Otolaryngology – Head & Neck Surgery Residency Board Certification/Affiliations American Board Of Otolaryngology American Academy Of Otolaryngology – [...]

Robbins, Amber C, MD

Robbins Dermatology, PC 1662 S. Sheridan Avenue Sheridan, WY, 82801 307.672.8941 Medical School MD – University Of Washington School Of Medicine/With Honors Internship/Residency Virginia Mason Medical Center – Internship, Seattle, WA Medical College Of Wisconsin – Resident, Milwaukee, WI Board Certification/Affiliations American Board Of Dermatology

McIntire, Amanda M, MSN, FNP-C

Heart Center – Family Nurse Practitioner 1333 W. 5th Street, Suite 103 Sheridan, WY, 82801 307.675.4610 Education Walden University- Masters Of Science In Nursing Certified By The American Academy Of Nurse Practitioners

Graslie, Jennifer, MPAS, PA-C

Heart Center 1333 W. 5th Street, Suite 103 Sheridan, WY, 82801 307.675.4610 Education Oregon Health Sciences University Physician Assistant Program – Masters In Physician Assistant Studies Certified By The National Commission On Certification Of Physician Assistants (NCCPA)

Garcia, Joseph R, MD

Heart Center – Cardiologist 1333 W. 5th Street, Suite 103 Sheridan, WY, 82801 307.675.4610 Medical School MD – University Of Puerto Rico School Of Medicine Residency/Fellowships Baylor College Of Medicine – Internship, Internal Medicine Residency St. Luke’s Episcopal Hospital & The Texas Heart Institute – Chief Cardiology Fellow Board Certification/Affiliations American Board Of Internal Medicine [...]

Brennan, Michael, MD

Heart Center – Cardiologist 1333 W. 5th Street, Suite 103 Sheridan, WY, 82801 307.675.4610 Medical School MD – University Of Oklahoma College Of Medicine Residency/Fellowships Presbyterian/Saint Luke’s Medical Center – Internal Medicine Residency Saint Luke’s Hospital – Cardiology Fellowship Board Certification/Affiliations American Board Of Internal Medicine (Internal Medicine And Cardiovascular Disease)

Scalva, Elisabeth, MD, FACOG

Women’s Clinic– OB/GYN 1333 West 5th Street Suite 210 Sheridan, WY, 82801 307.672.2522 About Dr. Scalva Dr. Scalva specializes in Obstetrics and Gynecology. Originally from Denver, Colorado, she was drawn to Sheridan for its safe and strong community, as well as its outstanding medical facilities. When not working, Dr. Scalva enjoys spending time outdoors with [...]

Olson, Becky, RNC, WHNP-BC

Women’s Clinic– OB/GYN 1333 West 5th Street Suite 210 Sheridan, WY, 82801 307.672.2522 About Becky Olson Becky Olson specializes in Obstetrics and Gynecology. Born and raised in Sheridan, she offers over 30 years of practice in Women’s Health to our community. When she isn’t working, Becky Olson enjoys spending time with her family at their [...]

Jons, Tracy L, MS, PA-C, MSCP

Franklund, Rebecca R, MD, FACOG

Women’s Clinic– OB/GYN 1333 West 5th Street, Suite 210 Sheridan, WY, 82801 307.672.2522 About Dr. Franklund Dr. Franklund specializes in Obstetrics and Gynecology. Originally from North Dakota, she and her family have made Sheridan their home since 2013. When she isn’t working, Dr. Franklund stays quite busy with her farm animals. Especially her chickens. Medical [...]

Capron, Lindsay, MD, FACOG

Women’s Clinic– OB/GYN 1333 West 5th Street Suite 210 Sheridan, WY, 82801 307.672.2522 About Dr. Capron Dr. Capron is a board-certified OB/GYN who has been at SMH since 2018. She was raised in Cody, Wyoming and is a graduate of the WWAMI program. Dr. Capron offers full-spectrum OB/Gyn care including prenatal care, birth, and surgical [...]

Visscher, Pattie, AuD, CCC-A

Sheridan Memorial Hospital Ear, Nose & Throat | Audiology 1333 West 5th Street Suite 206 Sheridan, WY 82801 Audiology: 307.673.4294 EN&T: 307.675.4646 Medical Education Central Michigan University – Clinical Doctorate in Audiology

Smith, Jr, Alan E, MD, PC

Special Interests Pain Management Medical School MD – Kansas University Medical Center Residency/Fellowships Kansas University Medical Center – Anesthesiology – Residency University Of Virginia – Roanoke Memorial Hospital – Internal Medicine Internship Board Certification/Affiliations American Board Of Anesthesiology American Society Of Anesthesiologists American Medical Association

Schaefer, Kristen L, MD

Big Horn Anesthesia Associates, LLC 1401 West 5th Street Sheridan, WY, 82801 Billing— 307.674.5123 Medical School MD – University Of Washington College Of Medicine Residency/Fellowships University Of Washington, Seattle – Anesthesiology & Pain Medicine Residency Board Certification/Affiliations American Board of Anesthesiology

Ramsay, Jamie A, MD FASA

Big Horn Anesthesia Associates, LLC 1401 West 5th Street Sheridan, WY, 82801 Billing— 307.674.5123 Medical School MD – University of Michigan Residency/Fellowships Residency – University of Michigan Health Systems Board Certification/Affiliations American Board of Anesthesiology Fellow of the American Society of Anesthesiologists

Brauer, Kirk, MD

Big Horn Anesthesia Associates, LLC 1401 West 5th Street Sheridan, WY, 82801 Billing— 307.674.5123 Medical School Spain and Germany Residency/Fellowships Residency – University of Texas, Galveston Board Certifications/Affiliations American Board of Anesthesiology

Gross, Sierra MD, FACP

307.672.1000 Chief Medical Officer Dr. Gross has taken on this leadership position which was created to enhance patient care and improve operational excellence in our Internal Medicine and Primary Care clinics and our Hospitalist program. She plays an integral role in advancing the way our hospital medicine team cares for our community, patients and their [...]

McKenzie, Kenneth KC, MPAS, PA-C

Addiction and Internal Medicine Clinic 1333 West 5th Street, Suite 200 Sheridan, WY 82801 307.675.2674 Ear, Nose & Throat 1333 West 5th Street Suite 206 Sheridan, WY 82801 307.675.4646 Education Idaho State University — Master Of Physician Assistant Studies Certified By The National Commission On Certification Of Physician Assistants (NCCPA)

Walker, David C, DO

Internal Medicine 1333 West 5th Street, Suite 112 Sheridan, WY, 82801 307.675.2650 Special Interests Esophagogastroduodenoscopy, Colonoscopy, Interpretation Of Transthoracic Echocardiograms, Stress Echocardiography, Nuclear And Non-Stress Nuclear Testing, Interpretation Carotid Duplex Studies, Interpretation Upper And Lower Extremity Venous Duplex Studies Medical School DO – Des Moines University Of Osteopathic Medicine And Health Sciences Residency/Fellowships University Of Nebraska Internal [...]

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