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Meet Our Residents

A group of residents dressed in black scrubs pose for a group photo on a set of stairs.

CLASS OF 2026


Ethan Allison, MD 

Hometown: Bixby, OK 

Medical School: OU-TU School of Community Medicine

Undergraduate: American Military University

Interests: Trauma, wilderness and tactical medicine, resuscitation

Fun Fact: I once snowboarded down a mountain and snorkeled in the ocean on the same day.

Favorite Tulsa Activity: Spending time with my wife and kids, hanging out with my co-residents, DIY projects, and anything outdoors.


Nicholas Hoggatt, DO

Hometown: Phoenix, AZ

Medical School: Rocky Vista University

Undergraduate: Grand Canyon University

Interests: Swimming, weightlifting, baking

Fun Fact: I may have a Diet Coke addiction.

Favorite Tulsa Activity: Plant shopping at Cohlima’s or Southwood.  Also trying out new places to eat!


Daniel Joslin, DO 

Hometown: Owasso, OK 

Medical School: Kansas City University

Undergraduate: Oklahoma State University

Interests: Pickleball, Mountain Biking, Hiking, Travel, Pickup Soccer & Basketball

Fun Fact: I can solve the crackle barrel triangle puzzle (experts say this is harder than a Rubix cube).

Favorite Tulsa Activity: My favorite Tulsa activity is going to Turkey Mountain .


Nicholas Morse, MD 

Hometown: Thayer, KS

Medical School: University of Kansas School of Medicine

Undergraduate: Washburn University 

Interest: Hunting, fishing, camping, water skiing 

Fun Fact: I have jumped out of a perfectly good airplane.

Favorite Tulsa Activity: Exploring the city with my wife and son


Caleb Niehues, DO 

Hometown: Holton, KS

Med School: A.T. Still University-Kirksville College of Osteopathic Medicine  

College: Kansas State University  

Interests: Weightlifting, Golf, and going on walks with my dog and wife

Fun Fact: When I was 12 years old my mom told me I would be bald when I grew up... she was right.

Favorite Tulsa Activity: Trying out as many restaurants, coffee shops, and breweries as possible.


Brent Spurling, DO 

Hometown: Tulsa, OK 

Medical School: Oklahoma State University College of Osteopathic Medicine

Undergraduate: University of Arkansas

Interests: I enjoy hiking and mountaineering, working out, hunting, and hanging out with my large dogs. I enjoy trying new places to eat around Tulsa and Jenks.

Fun Fact: I have been bungie jumping in New Zealand

Favorite Tulsa Activity: I enjoy hiking and mountain biking at Turkey Mountain and cycling on Riverside Trails.


Nicholas Stearns, DO 

Hometown: Pahrump, NV

Medical School: Arkansas College of Osteopathic Medicine

Undergraduate: Eastern Washington University

Interests: Hunting, Fishing, Hiking, Camping, Golf, Wood working

Fun Fact: I was NCAA Division I Pole Vaulter

Favorite Tulsa Activity: Exploring the area and seeing what Tulsa has to offer. So far the gathering place is my favorite


Nathan Wilks, DO 

Hometown: Chehalis, WA

Medical School: PNWU

Undergraduate: Western Washington University

Interests: Mountaineering, weightlifting, spending time with my wife and family

Fun Fact: I’ve climbed Mt. Rainier three times.

Favorite Tulsa Activity: Exploring the local food spots, Driller's baseball, Tulsa FC soccer


Tiga Wright, DO 

Hometown: McKinney, TX

Medical School: Oklahoma State College of Osteopathic Medicine

Undergraduate: Oklahoma State University

Interests: Anything outdoors, cheering on the Dallas Cowboys and OSU Cowboys, trying new restaurants, and hanging out with my 2 dogs, friends, and family

Fun Fact: I was born in Malaysia and know a total of 3 words in the native language

Favorite Tulsa Activity: Trying new restaurants and taking my dogs to Turkey Mountain

CLASS OF 2027

Joshua Bertoldie, DO

Joshua Bertoldie, DO

Hometown: Marshfield, MO

Medical School: Arkansas College of Osteopathic Medicine

Undergraduate: Southwest Baptist University (B.S in Biology)

Interests: Lifting, Fishing, Sports, and spending time with my wife and dogs

Fun Fact: I have two basset hounds named Dolly and Waylon.

Favorite Tulsa Activity: Fishing at Zink Dam

Zachary Canaday, DO

Zachary Canaday, DO

Hometown: Tulsa, OK

Medical School: Oklahoma State University

Undergraduate: Biomedical Sciences at University of Central Oklahoma

Interests: Hiking, traveling, grilling, golfing, working out, trying new foods, hanging out with friends and family

Fun Fact: I am a history nerd

Favorite Tulsa Activity: Playing local golf courses, trying new restaurants, going to Tulsa festivities like Oktoberfest and Tulsa Tough

Kendal Fagan, DO

Kendall Fagan, DO

Hometown: Redding, CA

Medical School: Idaho College of Osteopathic Medicine

Undergraduate: Boise State University, BS Biology

Interests: Being outside with my husband and two dogs, finding good food, and spending all of my money on concert tickets. 

Fun Fact: My husband and I successfully renovated 2 homes during medical school! And we absolutely do not recommend it. 

Favorite Tulsa Activity: Taking my dogs to the lake, seeing live music, and trying out new restaurants and breweries.

Jonathan Isenberg, DO.

Jonathan Isenberg, DO

Hometown: Garland, TX

Medical School: Arkansas College of Osteopathic Medicine

Undergraduate: xBachelor of Science in Nursing: Texas Tech University Health Sciences Center.

Interests: I enjoy playing music (drums, guitar and piano), doing anything outdoors, playing anything competitive, and spending time with my wife and kids. 

Fun Fact: When I was a child, I received a puncture wound from being bitten by a fish from a lobby pond at the Embassy Suites. 

Favorite Tulsa Activity: Visiting different parks with my wife and kids.

William Ogilvie, MD

William Ogilvie, MD

Hometown: Tulsa, OK

Medical School: OU-TU School of Community Medicine

Undergraduate: Biomedical Engineering

Interests: Big time college football fan (Boomer Sooner!), local food and drinks, cooking, and playing guitar

Fun Fact: I kissed Taylor Swift when I was 13 at a meet and greet in Nashville.

Favorite Tulsa Activity: Trying out new restaurants that are always popping up, taking our dog for a walk at any of the awesome walking trails, or golfing at local courses with fellow residents.

Katie Penn, DO

Katie Penn, DO

Hometown: Neosho, MO

Medical School: Kansas City University 

Undergraduate: Bachelor in Psychology, Masters in Social Work 

Interests: Jesus, Music, sharks, oceanography, ferns, mosses, mycology, horses, family adventures, little dogs named Lulu

Fun Fact: My first job out of college was at Cool Guitars in Joplin, MO. I met my husband around this time, and we have played in bands together for the last 16 years.

Favorite Tulsa Activity: Trying new restaurants and exploring the Art Deco architecture of downtown.

Rajvir Sidhu, DO

Rajvir Sidhu, DO

Hometown: St. Cloud, MN

Medical School: Kansas City University 

Undergraduate: Biomedical Science and Community Psychology, St. Cloud State University 

Interests: Gardening and cooking

Fun Fact: I am the mother of four kids and have a dog.

Favorite Tulsa Activity: Taking my kids to the Gathering Place

Cole Williams, DO

Cole Williams, DO

Hometown: Tulsa, OK

Medical School: Oklahoma State University

Undergraduate: Biology, University of Tulsa

Interests: Cycling, motorcycles, hanging out with friends, trying new places to eat, espresso

Fun Fact: I have a dog named Morgan that I love taking on walks.

Favorite Tulsa Activity: Cycling or walking my dog down the Riverside Trail

Taylor Williams, DO

Taylor Williams, DO

Hometown: Wichita, KS

Medical School: Arkansas College of Osteopathic Medicine

Undergraduate: Wichita State University

Interests: Golf, pickleball, working out, and going to the lake

Fun Fact: I’ve caddied for Toby Keith.

Favorite Tulsa Activity: Golfing at the Canyons and Battle Creek Golf Club

CLASS OF 2028


Joshua Autaubo, DO

Hometown: Broken Arrow, OK

Medical School: Oklahoma State University College of Osteopathic Medicine

Undergraduate: University of Central Oklahoma

Interests: I love spending time outdoors, being with family and friends, and cooking a good meal.

Fun Fact: In college I was the long snapper for our football team.

Favorite Tulsa Activity: Eating local food and spending time with my family at the Gathering Place.


Timothy Blackstad, DO

Hometown: Broken Arrow, OK

Medical School: Oklahoma State University College of Osteopathic Medicine

Undergraduate: Baylor University

Interests: Watching and playing sports, video games, working out

Fun Fact: I am red-green color blind

Favorite Tulsa Activity: Exploring new restaurants to eat at.


Kaleb Blackwell, DO

Hometown: Oologah, OK

Medical School: Oklahoma State University College of Osteopathic Medicine

Undergraduate: Northeastern State University

Interests: Jesus, spending time with my wife and kids, woodworking and carpentry, and cooking.

Fun Fact: I built a two-story clubhouse for my nieces and nephew and almost crushed by friend while installing the roof. That friend later became by wife and mother of our two kids.

Favorite Tulsa Activity: Going to the Gathering Place and Zoo with my family and movies at the Cinemark


Ames Castelli, DO

Hometown: Wichita, KS

Medical School: Arkansas College of Osteopathic Medicine

Undergraduate: Wichita State University

Interests: Cycling, reading, and cooking

Favorite Tulsa Activity: Turkey Mountain and the Gathering Place


Emily DuBuc, DO

Hometown: Owasso, OK

Medical School: Oklahoma State University College of Osteopathic Medicine

Undergraduate: Oklahoma State University

Interests: Laser engraving, crochet, and kayaking

Fun Fact: My favorite animal is a Capuchin monkey

Favorite Tulsa Activity: Trying new restaurants, DIY projects, and anything outdoors


Levy Hacker, DO

Hometown: Wichita, KS

Medical School: Kansas City University

Undergraduate: Newman University

Interests: Fishing, hunting, cooking, and spending time with my family and my dog.

Fun Fact: I am left-handed

Favorite Tulsa Activity: Trying new restaurants, taking my dog on walks, and golfing


Breanna Sharp, DO

Hometown: Tulsa, OK

Medical School: Oklahoma State University College of Osteopathic Medicine

Undergraduate: University of Central Oklahoma

Interests: Exercising, crafting, baking, rom-coms, spending time with friends and family

Fun Fact: I wanted to be a famous pop-star or a baker when I was growing up.

Favorite Tulsa Activity: Trying new coffee shops, comedy shows, and anything involving food.


Katherine Tucker, DO

Hometown: Verdigris, OK

Medical School: Oklahoma State University College of Osteopathic Medicine at Cherokee Nation

Undergraduate: Rogers State University

Interests: Weightlifting, painting, knitting, cooking, and thrifting

Fun Fact: I once ran a graphic design company before switching gears to medicine.

Favorite Tulsa Activity: I love finding locally owned restaurants and coffee shops to try with friends and family.


Shawn Votruba, DO

Hometown: Grand Junction, CO

Medical School: VCOM - Carolinas

Undergraduate: Colorado Mesa University

Interests: Hunting big game and upland birds, running 5K-50K, and spending time with my wife and two kids.

Fun Fact: While in medical school I owned a pair of goats and used them to clear out brush on my land.

Favorite Tulsa Activity: Turkey mountain and the food options in Tulsa. As a family we like the Gathering place and the Aquarium.


Hannah Wingo, DO

Hometown: El Reno, OK

Medical School: Oklahoma State University College of Osteopathic Medicine at the Cherokee Nation

Undergraduate: Southwestern Oklahoma State University

Interests: Duck hunting, horseback riding, pilates and yoga and Tennessee Football (for better or worse)

Fun Fact: For the first 6 weeks of my life my name was Judith. That is now what I have affectionately named by last brain cell.

Favorite Tulsa Activity: Walking along Riverside