Dr. Theodoros Voloyiannis, MD

Dr. Theodoros Voloyiannis, MD

Colorectal SurgeryMale

Colorectal Surgery

Dr. Theodoros Voloyiannis, MD is a Colorectal Surgery Specialist in Webster, TX. He is affiliated with Hca Houston Healthcare Clear Lake, winner of the Gastrointestinal Care Excellence Award and others. He is also affiliated with Memorial Hermann - Texas Medical Center. His office accepts new patients and telehealth appointments.

Office Hours

400 W Medical Center Blvd Ste 205 Webster, TX 77598

Tue

8:30 am
to
5 pm

Wed

8:30 am
to
5 pm

Thu

8:30 am
to
5 pm

Fri

8:30 am
to
5 pm

Sat

Office
closed

Sun

Office
closed

Mon

8:30 am
to
5 pm
Connect with a call center representative 24/7 to request an appointment.

Locations

Texas Oncology - Webster

Webster400 W Medical Center Blvd Ste 205 Webster, TX 77598
1
  • Call
  • Fax
  • Hours
    • Mon: 8:30am - 5:00pm
    • Tue: 8:30am - 5:00pm
    • Wed: 8:30am - 5:00pm
    • Thu: 8:30am - 5:00pm
    • Fri: 8:30am - 5:00pm
    • Sat: closed
    • Sun: closed
  • Directions

Texas Oncology

Deke Slayton Cancer Center150 E Medical Center Blvd Ste C Webster, TX 77598
2
  • Call
  • Fax
  • Hours
    • Mon: 8:00am - 5:00pm
    • Tue: 8:00am - 5:00pm
    • Wed: 8:00am - 5:00pm
    • Thu: 8:00am - 5:00pm
    • Fri: 8:00am - 5:00pm
    • Sat: closed
    • Sun: closed
  • Directions

At a Glance

  • Explains Conditions Well Patients said this doctor explains conditions well. See reviews
  • Offers Telehealth This provider offers telehealth appointments. Call the office to schedule an appointment.
  • Practices at Top Hospital Gastrointestinal Care Excellence Award™ See hospitals

Dr. Voloyiannis' Reviews

Likelihood to recommend Dr. Voloyiannis

4.8

Based on 36 ratings

5 Stars
94.44444444444444%
(34)
4 Stars
0%
(0)
3 Stars
2.7777777777777777%
(1)
2 Stars
0%
(0)
1 Star
2.7777777777777777%
(1)
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Dr. Voloyiannis
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RecentHighestLowestMost Helpful
Reply
Best Gastro Surgeon in our area
Dr. Voloyiannis is awesome. He is professional and courteous and cares about his patients needs and makes sure they get the best surgery for their condition.
What went well
  • Appointment scheduling
  • Office environment
  • Staff friendliness
  • Appointment wasn't rushed
  • Listened & answered questions
  • Explained conditions well
  • Trusted the provider's decisions
What could be improved
  • Long wait times
Helpful
L. Marie Nash – Apr 14, 2022
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Reply
Best decision I ever made!
I had grade 4 hemorrhoids, internal and external....I was in really bad shape! Meet Dr. V and he explained the THD procedure to remove the internal hems. Had my procedure done December 1st. I'm feeling extraordinarily well and Dr. V fully restored me to good health. I wish I would have meet him sooner. I can't thank him enough....he's truly an asset to the medical community and highly skilled in his profession.
What went well
  • Office environment
  • Staff friendliness
  • Appointment wasn't rushed
  • Explained conditions well
  • Trusted the provider's decisions
What could be improved
No results
Helpful
MadeinNYC – Mar 25, 2022
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Reply
The very best, skilled, knowledgeable, very caring, highest recommendation!
What went well
  • Appointment scheduling
  • Staff friendliness
  • Listened & answered questions
  • Explained conditions well
  • Trusted the provider's decisions
What could be improved
  • Long wait times
Helpful
Cecile Lalli Calvert – Dec 13, 2021
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Reply
Dr V. and all of the staff are very kind and friendly.
What went well
  • Appointment scheduling
  • Office environment
  • Staff friendliness
  • Wait times
  • Appointment wasn't rushed
  • Listened & answered questions
  • Explained conditions well
  • Trusted the provider's decisions
What could be improved
No results
Helpful
J. Carlos Rossi – Feb 27, 2021
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Reply
Hello, Dr, Voloyiannis saved me when I didn't even know I needed saving. Without being too specific or graphic , a colonoscopy showed a sizeable mass. I was sent to Dr. Voloyiannis and he removed the problem and now I am feeling fantastic ! He's very professional, a specialist in the true sense of the word. I thank all his gifted nurses and staff.
What went well
  • Appointment scheduling
  • Office environment
  • Staff friendliness
  • Wait times
  • Appointment wasn't rushed
  • Listened & answered questions
  • Explained conditions well
  • Trusted the provider's decisions
What could be improved
No results
1 person found this helpful
Helpful
Dreux Goan – Feb 27, 2021
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Reply
FYI, to the person up above that is upset about the out of network, my insurance helps me get ride of the bill. and the hospitals fail to show the fine print that we sign stating certain medical people are not in the network, so do a review on the hospital , not the Doctor!! The same thing has happened to me numerous times at different hospitals. It is not the Doctors fault, it is who the hospitals chose, Dr. V is an awesome Doctor
What went well
  • Appointment scheduling
  • Office environment
  • Staff friendliness
  • Wait times
  • Appointment wasn't rushed
  • Listened & answered questions
  • Explained conditions well
  • Trusted the provider's decisions
What could be improved
No results
2 people found this helpful
Helpful
Tami – Aug 25, 2019
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Reply
BEWARE: This doctor used OUT OF NETWORK anesthesia during my surgery which cost me $1500 over my in network copays. I'll never let him or Clear Lake Surgery Center touch me again!
What went well
  • Staff friendliness
  • Listened & answered questions
What could be improved
  • Difficult to schedule appointment
  • Office environment
  • Appointment was rushed
  • Didn't explain conditions well
  • Didn't trust the provider's decisions
Helpful
Jul 27, 2019
Thank you for sharing this concern with us. We...Read More
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Reply
I highly recommend Dr. V. He and his staff are very kind and compassionate. During one visit when I was having a rough time Ashley (his PA) gave me her undivided attention for a long time to answer all of my questions. Another day Monica called me back to the exam room with a bubbly introduction. Marie called me one day to see how I was doing. Dr. V took a vacation and kept asking his staff how I was doing while on vacation. And Dr. V is very conservative in his treatment approach.
What went well
  • Appointment scheduling
  • Office environment
  • Staff friendliness
  • Wait times
  • Appointment wasn't rushed
  • Listened & answered questions
  • Explained conditions well
  • Trusted the provider's decisions
What could be improved
No results
1 person found this helpful
Helpful
Jun 29, 2019
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Reply
Dr. Voloyiannis and his team provided excellent care for my husband during a recent surgery. He explained the surgical process in a way that was easy to understand...even drew pictures. Surgery was scheduled quickly. This meant the office remained open briefly to make sure everything was complete. All this with a wonderful attitude. A very caring dr and staff as well!
What went well
  • Appointment scheduling
  • Office environment
  • Staff friendliness
  • Appointment wasn't rushed
  • Listened & answered questions
  • Explained conditions well
  • Trusted the provider's decisions
What could be improved
No results
1 person found this helpful
Helpful
Feb 19, 2019
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Reply
Dr. Voloyiannis helped me with some difficult surgeries involving my colon. He has great bedside manner and is able to easily explain options. The only issue I had was he promised he would see my case to the end and then left the hospital where my insurance was covered. He was passionate about helping me at the new hospital, but my insurance did not allow it. Unfortunately, he neglected to tell me his privileges at the prior hospital were suspended as I had to find this out through other means.
What went well
  • Appointment scheduling
  • Office environment
  • Staff friendliness
  • Wait times
  • Appointment wasn't rushed
  • Listened & answered questions
  • Explained conditions well
What could be improved
No results
1 person found this helpful
Helpful
Webster, TX – Sep 26, 2018
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Reply
Dr. V removed 8” of my colon on a Monday. I was home on Wednesday. I feel like I was granted a miracle, given through Dr. V’s hands. Two weeks out of surgery and I am doing exceptionally well! He is my hero.
What went well
  • Appointment scheduling
  • Office environment
  • Staff friendliness
  • Wait times
  • Appointment wasn't rushed
  • Listened & answered questions
  • Explained conditions well
  • Trusted the provider's decisions
What could be improved
No results
3 people found this helpful
Helpful
Mary in Houston area, Texas – Jan 24, 2018
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Reply
Dr. v and Ashley saved my life I was admitted in the hospital 07/30/2016 with a small tear in my colon which resulted in a perforated manner . I had major surgery with him to fix my perforted colon and then was given a temporary colostomy bag . Dr. V and Ashley kept me informed of what to exspect and how things were to go . Needless to say everything went really well had my reversal 01/25 with no problems I'm feeling great and excited to continue my journey . I love them and will recommend them.
What went well
  • Appointment scheduling
  • Office environment
  • Staff friendliness
  • Wait times
  • Appointment wasn't rushed
  • Listened & answered questions
  • Explained conditions well
  • Trusted the provider's decisions
What could be improved
No results
3 people found this helpful
Helpful
P in Deer Park, TX – Sep 23, 2017
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Reply
Great surgeon, did a fistula removal and bowel resection. With the surgery done laparoscopy my time in the hospital was 5 days. He listens and cares about his patients. His nurse is also wonderful and very organized. If you need colon or rectal surgery this is the surgeon for the job.
What went well
  • Appointment scheduling
  • Office environment
  • Staff friendliness
  • Wait times
  • Appointment wasn't rushed
  • Listened & answered questions
  • Explained conditions well
  • Trusted the provider's decisions
What could be improved
No results
1 person found this helpful
Helpful
Ricky Lane in Nederland, TX – Jun 08, 2017
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Reply
Doctor Voloylannis and his office staff were very professional and always helpful. Doctor V. will perform my colostomy reversal in a few months and I'm confident I'm in good hands. I will definite recommend to others.
What went well
  • Appointment scheduling
  • Office environment
  • Staff friendliness
  • Appointment wasn't rushed
  • Listened & answered questions
  • Explained conditions well
  • Trusted the provider's decisions
What could be improved
No results
4 people found this helpful
Helpful
houston, tx – Jul 30, 2016
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Reply
This is my second surgery to remove my hemorrhoids. My 1st surgeon is Kelly Gilmore-Lynch and she messed me up BIG time!! It took me almost a year to finally decide to go through the same procedure again. I'm so glad I found Dr. Voloyiannis! I wish I had known him before. I have suffered enough from my previous surgery. Not only did he repaired the other surgeon's mistakes, the recovery from this procedure is a lot less painful. I definitely recommend!!
What went well
  • Appointment scheduling
  • Office environment
  • Staff friendliness
  • Wait times
  • Appointment wasn't rushed
  • Listened & answered questions
  • Explained conditions well
  • Trusted the provider's decisions
What could be improved
No results
8 people found this helpful
Helpful
Joan Needham in League City, TX – Apr 14, 2016
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Experience and Background Checks

Experience
Background

Background Check

No malpractice claims found for Texas
No disciplinary actions found for the years we collect data
No board actions found for the years we collect data
Learn more about background checks

Experience Check

Check Dr. Voloyiannis' experience treating your condition or procedure

Dr. Voloyiannis' Top Procedures and Conditions

Treatment Frequency
Colectomy
very high
very high

Treatment Frequency

Dr. Voloyiannis performs Colectomy more than 99% of his peers

Dr. Voloyiannis performs this procedure more than 99% of his peers

Rating Includes other areas of care:

  • da Vinci® Colectomy
  • Hemicolectomy
  • Laparoscopic Colectomy
Anal and Rectal Cancer
very high
very high

Treatment Frequency

Dr. Voloyiannis treats Anal and Rectal Cancer more than 99% of his peers

Dr. Voloyiannis treats this condition more than 99% of his peers

Rating Includes other areas of care:

  • Anal Cancer
  • Rectal Cancer
Colorectal Cancer
very high
very high

Treatment Frequency

Dr. Voloyiannis treats Colorectal Cancer more than 97% of his peers

Dr. Voloyiannis treats this condition more than 97% of his peers

Rating Includes other areas of care:

  • Distal Colorectal Cancer
  • Familial Colorectal Cancer
  • Hamartomatous Colorectal Cancer
  • MSI-H Colorectal Cancer
  • MSI-L Colorectal Cancer
  • MSS Colorectal Cancer
  • Nonpolyposis Colorectal Cancer, Familial
  • Rectal Cancer
  • Sporadic Colorectal Cancer
Hide other areas of care

Dr. Voloyiannis' conditions and procedures:

  • Abscess or Cyst Drainage or Aspiration
  • Abscess or Fluid Incision and Drainage
  • Advanced Laparoscopic Surgery
  • Anal and Rectal Cancer
  • Anal Cancer
  • Anal Fissure
  • Anal Fistula
  • Anal or Rectal Pain
  • Anal Prolapse
  • Anal Repair
  • Anorectal Abscess
  • Anoscopy
  • Anoscopy With Removal of Anal Tumor
  • Appendectomy
  • Appendectomy, Laparoscopic
  • Appendectomy, Open
  • Biofeedback
  • Biopsy of Affected Tissue
  • Bowel Resection
  • Carcinoma in Situ
  • Chlamydia Infections
  • Colectomy
  • Colectomy and Sigmoidectomy With Robotic Assistance
  • Colitis
  • Colon and Rectal Surgery
  • Colon Cancer Screening
  • Colon Disorders
  • Colon Polyp
  • Colonic Volvulus
  • Colonoscopy
  • Colonoscopy With Polypectomy
  • Colonoscopy, Proctosigmoidoscopy, and Sigmoidoscopy
  • Colorectal Cancer
  • Colorectal Cancer Screening
  • Constipation
  • Crohn's Disease
  • da Vinci® Colectomy
  • Destruction of Anal Tumor
  • Diseases Contagious from Anal Sex
  • Diseases Contagious from Safe Sex
  • Distal Colorectal Cancer
  • Diverticulitis
  • Endometriosis of Colon
  • Enterocutaneous Fistula
  • Enterostomy (Laparoscopic or Open)
  • Excision of Rectal Tumor
  • Excisional Biopsy
  • Familial Colorectal Cancer
  • Familial Polyposis
  • Fistula
  • Fistulectomy or Fistulotomy, Anal
  • Flexible Sigmoidoscopy
  • Flexible Sigmoidoscopy With Robotic Assistance
  • Genital Warts
  • Gonorrhea Infections
  • Hamartomatous Colorectal Cancer
  • Hemicolectomy
  • Hemorrhoidectomy or Excision of Anal Tags
  • Hemorrhoids
  • Herpes Simplex Infection
  • HIV (Human Immunodeficiency Virus)
  • Ileal Pouch-Anal Anastomosis
  • Incision and Removal of Foreign Object
  • Incontinence
  • Inflammatory Bowel Disease
  • Infrared Coagulation (IRC) Hemorrhoid Removal
  • Intestinal Abscess
  • Intestinal Biopsy
  • Intestinal Diseases
  • Intestinal Fistula
  • Intestinal Ischemia
  • Intestinal Obstruction
  • Intussusception
  • Laparoscopic Abdominoperineal Resection of the Rectum With Robotic Assistance
  • Laparoscopic Colectomy
  • Laparoscopic Colon Surgery
  • Laparoscopic Excision or Destruction of Ovary With Robotic Assistance
  • Laparoscopic Surgical Procedure
  • Laparotomy
  • Megacolon
  • Metastatic Cancer
  • Minimally Invasive Surgery
  • MSI-H Colorectal Cancer
  • MSI-L Colorectal Cancer
  • MSS Colorectal Cancer
  • Neoplasm of Gastrointestinal Tract
  • Neuroendocrine Tumors
  • Non-Surgical Treatment of Hemorrhoids
  • Open Incisional and-or Ventral Hernia Repair
  • Paralytic Ileus
  • Pelvic Abscess
  • Pelvic Fistula Repair
  • Perianal Abscess
  • Pericolic Abscess
  • Perirectal Abscess
  • Pilonidal Cyst
  • Proctectomy, Open or Laparoscopic (incl. Swenson and Duhamel Procedures)
  • Pruritus Ani
  • Rectal Cancer
  • Rectal Diseases
  • Rectal Prolapse
  • Rectal Surgery
  • Rectourethral Fistula
  • Rectovaginal Fistula
  • Removal or Destruction of Rectal or Intestinal Tumor (incl. Colonoscopy, Proctosigmoidoscopy, Sigmoidoscopy and Control of Hemorrhage)
  • Repair of Anal and Rectal Defects (Anoplasty, Repair of Imperforate Anus, Sphincteroplasty, Rectal Graft)
  • Retroperitoneal Abscess
  • Rigid Sigmoidoscopy
  • Screening Colonoscopy
  • Secondary Malignancies
  • Sexually Transmitted Diseases (STDs)
  • Sigmoidoscopy
  • Single Incision Laparoscopic Surgery
  • Sphincterotomy
  • Sporadic Colorectal Cancer
  • Therapeutic Colonoscopy
  • Ulcerative Colitis
  • Ultrasound
  • Ultrasound, Transrectal
  • Vaginal Fistula
  • Vesicocolic Fistula
  • Warts

Insurance Check

Search for your insurance provider

Dr. Voloyiannis accepts

Accepted insurance can change. Please double-check when making an appointment.

(281) 699-4880

Dr. Voloyiannis accepts the following insurance:

Aetna
Aetna HMO
Choice Plus POS II
Ambetter
Superior Health Plan
Amerigroup (Wellpoint)
Anthem
National (BlueCard) PPO
Blue Cross Blue Shield
Blue Card PPO
Blue Cross Blue Shield of Texas
Blue Advantage HMO
Blue Choice
CareFirst Blue Cross Blue Shield
HealthyBlue 2.0
HealthyBlue Advantage
Cigna
Cigna HMO
Cigna PPO
Great West Healthcare-Cigna PPO
LocalPlus
Open Access Plus
Commercial Insurance Company
Coventry Health Care
First Health (Coventry Health Care)
First Health (Coventry Health Care) PPO
Golden Rule
Government Employees Health Association (GEHA)
GEHA
HAP Insurance
Health Alliance
Humana
Choice Care PPO
MHealth Insured
MultiPlan
MultiPlan PPO
PHCS Network PPO
Principal Life
UnitedHealthCare
Choice Plus POS
Navigate HMO
Navigate POS
Options PPO

About Me

Care Philosophy

To provide excellent care to our patients with benign and malignant conditions of the colon, rectum, and anus.

Biography

Born in Thessaloniki, Greece, Dr. Voloyiannis earned his medical degree at the Aristotle University of Thessaloniki Medical School and completed his Surgical...Read more

Specialties

  • Colorectal Surgery

Board Certifications

  • Colon & Rectal Surgery
  • General Surgery

Education

University of Texas Health Science Center
Fellowship Hospital
Baylor College Of Medicine
Residency Hospital
Baylor College Of Medicine
Internship Hospital
Aristotle University of Thessaloniki Medical School
Medical School
1998
Faculty of Medicine of Aristotle University of Thessaloniki
Undergraduate School
,

Languages

  • English
  • Greek
  • Spanish

Awards

Frequently Asked Questions

How can I make an appointment with Dr. Theodoros Voloyiannis, MD?

Call (832) 241-9845 to make an appointment as a new patient. Click here for more information.

Does Dr. Theodoros Voloyiannis, MD offer telehealth services?

Dr. Voloyiannis has indicated that they offer telehealth. Contact the office to check for eligibility for your needs.

Is Dr. Theodoros Voloyiannis, MD accepting new patients?

Dr. Theodoros Voloyiannis, MD generally accepts new patients on Healthgrades. You can see Dr. Voloyiannis' profile to make an appointment.

Does Dr. Theodoros Voloyiannis, MD accept my insurance?

Use the Healthgrades insurance check to verify if Dr. Voloyiannis accepts your insurance.

What are Dr. Theodoros Voloyiannis, MD's top areas of care?

Dr. Voloyiannis frequently treats Colectomy, Anal and Rectal Cancer, and Colorectal Cancer. See all procedures and conditions Dr. Voloyiannis treats.

Where is Dr. Theodoros Voloyiannis, MD's office located?

Dr. Voloyiannis' office is located at 400 W Medical Center Blvd Ste 205, Webster, TX 77598. Find other locations and directions on Healthgrades.

What languages does Dr. Theodoros Voloyiannis, MD speak?

Dr. Voloyiannis speaks Spanish, Greek, and English. View profile to see all.

Affiliated Hospitals

Dr. Voloyiannis is affiliated with the following hospitals. Select a hospital below to learn more.

Learn more about how Healthgrades measuresHospital Quality.

The Woman's Hospital of Texas

Houston, TX

73% Patients that would definitely recommend, 3% higher than the national average

9 Awards Received

Hca Houston Healthcare Clear Lake

Webster, TX

69% Patients that would definitely recommend, 1% lower than the national average

11 Awards Received

Award Highlight: Gastrointestinal Care Excellence Award™ (2022)

Hca Houston Healthcare Pearland

Pearland, TX

72% Patients that would definitely recommend, 2% higher than the national average

1 Award Received

Award Highlight: Patient Safety Excellence Award™ (2022)

Memorial Hermann - Texas Medical Center

Houston, TX

77% Patients that would definitely recommend, 7% higher than the national average

14 Awards Received

Award Highlight: Gastrointestinal Surgery Excellence Award™ (2021)

Memorial Hermann Southeast Hospital

Houston, TX

18 Awards Received

Award Highlight: Patient Safety Excellence Award™ (2020)

Memorial Hermann Southwest Hospital

Houston, TX

75% Patients that would definitely recommend, 5% higher than the national average

18 Awards Received

Award Highlight: Patient Safety Excellence Award™ (2020)