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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 2025


Ashwin Adivi, DO, MS 

Hometown: San Antonio, TX

Medical School: University of the Incarnate Word School of Osteopathic Medicine

Undergraduate: Trinity University 

Interests: Watching the San Antonio Spurs (and getting upset when they lose), SCUBA diving, breakfast tacos, running (slowly), cycling, reading 

Fun Fact: I was once a Sandwich Artist (official title!) at Subway and continue to foster those creative talents. 

Favorite Tulsa Activity: Exploring coffee shops and enjoying the arts district.


Frank Aughe-Flores, DO, MA 

Hometown: Salmon, ID

Medical School: Pacific Northwest University of Health Sciences

Undergraduate: Lewis-Clark State College

Interests: My family, hunting, fishing, Jeep restoration 

Fun Fact: I spent 10 years as an ER nurse before going to medical school. 

Favorite Tulsa Activity: The Gathering Place is a great place for families and children. Looking for new place to eat and drink with my wife. 


Breanna Carlson, DO

Hometown: Mannford, OK

Medical School: Oklahoma State University Center for Health Sciences 

Undergraduate: University of Tulsa

Interests: Cycling, reading, guitar jamming with my husband

Fun Fact: I rode my bike 950 miles along the northern route of the Trail of Tears.

Favorite Tulsa Activity: Hitting up local coffee shops and reading for hours


Austin Gaby, MD

Hometown: Logansport, IN

Medical School: Indiana University School of Medicine

Undergraduate: Indiana University - Purdue University Indianapolis 

Interests: Spending time with my wife and two daughters, riding motorcycles, playing video games, and fixing things. 

Fun Fact: I performed in an amateur circus one summer. 

Favorite Tulsa Activity: During my time so far, the Gathering Place has been an awesome spot to explore. 


Arne Gratias, DO 

Hometown: Tacoma, WA

Medical School: Oklahoma State University College of Osteopathic Medicine

Undergraduate: University of Washington

Interests: Basketball, music, board games, biking, and traveling.

Fun Fact: I grew up living in a summer camp. 

Favorite Tulsa Activity: Concerts at Cain's Ballroom and the Gathering Place.


Alicia Meador, MD

Hometown: Aztec, NM

Medical School: University of New Mexico 

Undergraduate: University of New Mexico 

Interests: Reading, anything outdoors, medical education.

Fun Fact: 

Favorite Tulsa Activity: 


Danielle Miller, MD 

Hometown: Hot Springs, SD

Medical School: University of South Dakota Sanford School of Medicine

Undergraduate: University of Colorado - Denver 

Interests: Spending time with family and friends, playing piano, getting outside, and petting dogs. 

Fun Fact: I grew up on a cattle ranch, and have assisted on more bovine than human c-sections so far. 

Favorite Tulsa Activity: The Oklahoma aquarium 


Rachel Synar, MD

Hometown: Oologah-Talala, OK

Medical School: OU-TU School of Community Medicine

Undergraduate: University of Central Oklahoma 

Interest: Concerts, cooking, reading, my dogs, spending time with my family at the ranch. 

Fun Fact: I am a huge Harry Potter fan. 

Favorite Tulsa Activity: Going to Cain's Ballroom, trying new restaurants, playing sand volleyball at Pearl Beach.


Ryan Winchell, MD

Hometown: Santa Cruz, CA 

Medical School: University of Washington

Undergraduate: University of Wyoming  

Interest: Smoking meats, cold beers, fast cars 

Fun Fact: I like chicken wings. 

Favorite Tulsa Activity: Checking out the breweries and restaurants in Tulsa. 

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