Theresa Oey, M.D.

Theresa Oey, M.D.

For Appointments:

(605) 696-2700

Overall Rating

4.71 of 5 (126 ratings, 47 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
4.7096825396825 stars - 126 reviews

Ratings

5 stars  (39)4 stars  (8)3 stars (0)2 stars (0)1 stars (0)

0 had no ratings.

4.8
2026-07-09

Comment

from the MRI to my colonoscopy and hernia surgery the care I got was exceptional. The crew from the surgery was so kind, they kept saying we will take good care of you.
Oey-Trudeau Theresa
4.5
2026-07-05

Comment

Very caring staff!
Oey-Trudeau Theresa
4.8
2026-07-05

Comment

They were very good to me and kept me comfortable.
Oey-Trudeau Theresa
4.8
2026-05-31

Comment

Great doctors and nurses and facility. The scheduling procedure was a nightmare. I believed I had an appointment in the AM. 2 days before a phone call. I have made plans with employer, family and transportation. Bad communication.
Oey-Trudeau Theresa
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

It was a wonderful visit. Great people and great information.
Oey-Trudeau Theresa
4.8
2026-02-26

Comment

All hospital staff outstanding!
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

Excellent care.
Oey-Trudeau Theresa
3.7
2025-10-27

Comment

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

Comment

Everyone was very pleasant and helpful.
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

Ratings Breakdown

OAS CAHPS: Drs/nurses explained procedure understandably
5.0 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
4.9 out of 5
OAS CAHPS: Received info about getting ready for procedure
5.0 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
4.6 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
4.5 out of 5
OAS CAHPS: Would recommend facility
3.2 out of 5