Theresa Oey, M.D.

Theresa Oey, M.D.

For Appointments:

(605) 696-2700

Overall Rating

4.72 of 5 (141 ratings, 57 comments)

Specialties

Locations Served

  • Avera Medical Group Specialty Care

Education

  • Medical School: Sanford School of Medicine at the University of South Dakota
  • Residency: University of Kansas Medical Center - Wichita

Certifications

  • American College of Surgeons
4.7245390070922 stars - 141 reviews

Ratings

5 stars  (49)4 stars  (8)3 stars (0)2 stars (0)1 stars (0)

0 had no ratings.

4.2
2026-05-28

Comment

Offer a colonoscopy prep kit at the facility! The nurses/doctors were very kind, friendly, informative, and inclusive.
Oey-Trudeau Theresa
4.8
2026-05-25

Comment

Very happy with all care. Thank you. The infusion team is very professional with care. Thank you.
Oey-Trudeau Theresa
4.7
2026-05-25

Comment

Excellent care and the post-procedure meal was also delightful. Thank you Dietary! Great selection to choose from and I appreciated this a lot,
Oey-Trudeau Theresa
4.8
2026-05-21

Comment

Everyone was kind, helpful, and explained procedure
Oey-Trudeau Theresa
4.8
2026-05-17

Comment

We are blessed to have the Brookings Health System in our community!
Oey-Trudeau Theresa
4.8
2026-05-10

Comment

Everything went well.
Oey-Trudeau Theresa
4.8
2026-04-30

Comment

There isn't enough good things to say about Brookings Hospital. Every time of had something done, it was always top-notch courtesy, professionalism, and care a person could ask for.
Oey-Trudeau Theresa
4.8
2026-04-29

Comment

Well done!
Oey-Trudeau Theresa
4.8
2026-04-26

Comment

Everyone was professional & helpful.
Oey-Trudeau Theresa
4.5
2026-04-23

Comment

Dr. Oey + nurses were great. They continue as I've experienced discomfort since procedure.
Oey-Trudeau Theresa
4.8
2026-04-23

Comment

Excellent facility and care.
Oey-Trudeau Theresa
4.8
2026-04-23

Comment

My Dr. Oey was very careful about the procedure. She talked to me a intensively before and after about possible outcomes. I was very confident in her abilities.
Oey-Trudeau Theresa
4.8
2026-04-23

Comment

Everything was great. The staff was very friendly and answered any and all questions I had,
Oey-Trudeau Theresa
4.8
2026-04-22

Comment

Great.
Oey-Trudeau Theresa
4.8
2026-04-13

Comment

Care great. Dr. Oey fabulous. Room- little too small for 2 professionals to be in at same time. And I would appreciate an itemized bill with more detail.
Oey-Trudeau Theresa
4.2
2026-03-30

Comment

Very professional!
Oey-Trudeau Theresa
4.8
2026-03-18

Comment

Everybody at the facility were kind, courteous and respectful. Overall I was very pleased with the staff and the surgery and all the procedures I received.
Oey-Trudeau Theresa
4.1
2026-03-04

Comment

Dr. Oey, Julia Adee were outstanding. They were kind and patient answering questions, explaining everything. Directions, care before and after surgery from nurses was good. I highly recommend Dr. Oey and our health care system.
Oey-Trudeau Theresa
4.8
2026-02-26

Comment

All hospital staff outstanding!
Oey-Trudeau Theresa
4.8
2026-02-26

Comment

It was a wonderful visit. Great people and great information.
Oey-Trudeau Theresa
4.1
2026-02-25

Comment

Doctor talked to my wife, but I never got a chance to talk to surgeon.
Oey-Trudeau Theresa
4.3
2026-02-25

Comment

Everything went fine!! Nice place.
Oey-Trudeau Theresa
4.8
2026-02-23

Comment

Dr. Oey, all nurses, anesthesia dr, op room people were all just so awesome!
Oey-Trudeau Theresa
4.8
2026-02-23

Comment

Everything was perfect.
Oey-Trudeau Theresa
4.2
2026-01-19

Comment

I was very pleased with the care I received. I would and have recommended this facility to others.
Oey-Trudeau Theresa
4.8
2026-01-04

Comment

Always hate the prep but better this time.
Oey-Trudeau Theresa
4.8
2025-12-21

Comment

It was very good.
Oey-Trudeau Theresa
4.8
2025-12-07

Comment

Everyone was very friendly and helpful.
Oey-Trudeau Theresa
4.8
2025-11-30

Comment

All the staff and nurses were very nice and professionally done their jobs
Oey-Trudeau Theresa
4.8
2025-11-24

Comment

I received excellent care throughout my procedure.
Oey-Trudeau Theresa
4.8
2025-11-23

Comment

Everyone is great before and while I was doing prep I called with questions and received prompt reply. I also planned for no anesthesia however the anesthesiologist made me way more comfortable with explaining the process. Dr. Oey was super amazing and the nurses are the very best!!
Oey-Trudeau Theresa
4.8
2025-11-23

Comment

It was excellent.
Oey-Trudeau Theresa
4.8
2025-11-20

Comment

Thank you for the excellent communication and care.
Oey-Trudeau Theresa
4.8
2025-11-20

Comment

The whole process was handled as efficiently as it could possibly be. I have nothing but praise.
Oey-Trudeau Theresa
4.8
2025-11-09

Comment

Everything went well.
Oey-Trudeau Theresa
4.8
2025-11-06

Comment

All were knowledgeable friendly, caring. 1st class/top -notch people and experience.
Oey-Trudeau Theresa
4.0
2025-10-30

Comment

I had the nicest nurses and all the rest of the doctor and help. They were very friendly and helpful. They brought me a list of food to mark what I would like and I would give anyone who asked me about my same day surgery and I would have to say I had excellent care.
Oey-Trudeau Theresa
4.7
2025-10-29

Comment

NA - was excellent.
Oey-Trudeau Theresa
4.8
2025-10-27

Comment

Everyone was very pleasant and helpful.
Oey-Trudeau Theresa
3.7
2025-10-27

Comment

Nurses were great.
Oey-Trudeau Theresa
4.8
2025-10-27

Comment

Excellent care.
Oey-Trudeau Theresa
4.8
2025-10-26

Comment

This was the third colonoscopy I have received at the Brookings Hospital. The preparation & procedure were the best of the three. Staff were very professional.
Oey-Trudeau Theresa
5.0
2025-10-16

Comment

All good!
Oey-Trudeau Theresa
4.8
2025-09-07

Comment

Very pleased!
Oey-Trudeau Theresa
4.8
2025-08-26

Comment

Great care! The whole process is very streamlined and everyone from the receptionist at the beginning to the nurse who discharged me was great. Dr. Oey is superior in her field!
Oey-Trudeau Theresa
4.8
2025-08-25

Comment

The Brookings Health System provided a very high quality hospital experience. I have been bragging about it to my friends. The staff was Fantastic!
Oey-Trudeau Theresa
4.8
2025-08-24

Comment

All staff from start to finish were wonderful
Oey-Trudeau Theresa
4.8
2025-08-24

Comment

Everything was great. No issues.
Oey-Trudeau Theresa
4.7
2025-08-24

Comment

The care given to me by the nursing staff was first rate.
Oey-Trudeau Theresa
4.8
2025-08-24

Comment

It was exceptional and the care was great along with everyone that helped.
Oey-Trudeau Theresa
4.8
2025-08-24

Comment

Everything was great
Oey-Trudeau Theresa
4.8
2025-08-24

Comment

Great!!
Oey-Trudeau Theresa
4.8
2025-08-21

Comment

Everyone at the hospital was very polite and took extra care to make sure I was comfortable.
Oey-Trudeau Theresa
4.8
2025-08-21

Comment

My surgeon was amazing. Would recommend highly.
Oey-Trudeau Theresa
4.8
2025-08-21

Comment

Care and procedure went very well.
Oey-Trudeau Theresa
4.8
2025-07-27

Comment

Very thorough and knowledgeable. Exceptional health care staff.
Oey-Trudeau Theresa
4.8
2025-07-24

Comment

Colonoscopy isn't a fun experience but the procedure & staff understand that & show sympathy & respect
Oey-Trudeau Theresa

Ratings Breakdown

Using any number from 0 to 10, where 0 is the worst facility possible and 10 is the best facility possible, what number would you use to rate this emergency department?
4.6 out of 5
Did the care providers explain what to do if you did not get better after leaving?
5.0 out of 5
OAS CAHPS: Drs/nurses explained procedure understandably
4.9 out of 5
OAS CAHPS: Drs/nurses made patient comfortable
5.0 out of 5
OAS CAHPS: Drs/nurses, courtesy/respect
5.0 out of 5
OAS CAHPS: Overall rating of facility
4.8 out of 5
OAS CAHPS: Prepared for what to expect during recovery
4.8 out of 5
OAS CAHPS: Received info about getting ready for procedure
4.9 out of 5
OAS CAHPS: Received info about procedure
5.0 out of 5
OAS CAHPS: Received info on what do re: bleeding
4.9 out of 5
OAS CAHPS: Received info on what do re: nausea/vomiting
4.7 out of 5
OAS CAHPS: Received info on what do re: pain
4.8 out of 5
OAS CAHPS: Received info on what do re: signs of infection
4.7 out of 5
OAS CAHPS: Would recommend facility
3.2 out of 5