31 Years of Experience
Accepting patients
Affiliated with a Castle Connolly Top Hospital
Who is Dr. Marquez, Surgeon in Mission, TX?
Dr. Guillermo Marquez, MD is a Surgeon, who primarily practices in Mission, TX. He has been practicing for over 31 years and is board certified. Dr. Marquez graduated from Autonomous University of San Luis Potosi / Faculty of Medicine and completed his residency at Cook County Hospital and Columbus Hospital. Dr. Marquez is fluent in English and Spanish, and is currently seeing new patients. Dr. Marquez’s practice accepts Medicaid, Medicare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Marquez’s office at (956) 682-6126.
Where did Dr. Marquez go to medical school and complete their residency?
Residency: Cook County Hospital and Columbus Hospital | Memorial Hermann Hospital System Program
Medical School: Autonomous University of Juarez Mexico | Autonomous University of San Luis Potosi / Faculty of Medicine | Autonomous University of San Luis Potosi / Faculty of Medicine | Universidad Nacional Autonoma de Honduras Facultad de Ciencias Medicas
Is Dr. Marquez board certified as a Surgeon?
Yes, Dr. Guillermo Marquez, MD is board certified by the American Board of Surgery
What languages does Dr. Marquez speak?
Dr. Marquez and their clinical team can communicate with patients in the following languages:
English
Spanish
What conditions does a Surgeon like Dr. Marquez typically treat?
As a Surgeon, Dr. Marquez diagnoses, treats, and manages a wide range of conditions. This condition information is derived from anonymized insurance claims and highlights the medical conditions most commonly treated by Dr. Marquez. It provides insight into the doctor’s areas of experience and expertise based on real-world patient encounters from the past two years, updated quarterly. Learn more about our claims-based healthcare methodology.
Also known as:
- Cystic Breast Changes in Right Breast
- Breast Disease
- Fibrocystic right breast
- Diffuse breast cysts right side
- Right breast cystic disease
ICD-10 Codes:
- N6011: Diffuse cystic mastopathy of right breast
Also known as:
- Chronic Gallbladder Inflammation
- Gallbladder Disease
- Long-term Gallbladder Inflammation
- Chronic Cholecystitis
- Ongoing Gallbladder Issues
ICD-10 Codes:
- K811: Chronic cholecystitis
Also known as:
- Other Pre-Procedure Examination
- Various pre-op checks
- Miscellaneous pre-surgery exams
- Other pre-treatment assessments
ICD-10 Codes:
- Z01818: Encounter for other preprocedural examination
Also known as:
- Mammogram for Breast Cancer Screening
- Health Screening
- Mammography
- Breast Cancer Screening (PDQ®)
- Mammograms
- Breast X-ray
- Breast Cancer Check
ICD-10 Codes:
- Z1231: Encounter for screening mammogram for malignant neoplasm of breast
What procedures does a Surgeon like Dr. Marquez typically perform?
As a Surgeon, Dr. Marquez performs a variety of medical procedures. This procedure information is derived from anonymized insurance claims and highlights the medical procedures most commonly performed by Dr. Marquez. It provides insight into the doctor’s areas of experience and expertise based on real-world patient encounters from the past two years, updated quarterly. Learn more about our claims-based healthcare methodology.
Also known as:
- Laparoscopic Gallbladder Removal with X-ray
- Keyhole Gallbladder Surgery
- Cholecystectomy with Cholangiography
- Minimally Invasive Gallbladder Removal
CPT Codes:
- 47563: Laparoscopy, surgical; cholecystectomy with cholangiography
Also known as:
- Small Abdominal Hernia Repair
- Inguinal Hernia Repair (Adults and Children 5+)
- Ventral hernia repair
- Umbilical hernia surgery
- Epigastric hernia repair with mesh
- Incisional hernia repair
- Groin Hernia Surgery
- Reducible Inguinal Hernia Repair
- First Inguinal Hernia Fix
- Adult Inguinal Hernia Surgery
CPT Codes:
- 49591: Repair of anterior abdominal hernia(s) (ie, epigastric, incisional, ventral, umbilical, spigelian), any approach (ie, open, laparoscopic, robotic), initial, including implantation of mesh or other prosthesis when performed, total length of defect(s); less than 3 cm, reducible
- 49505: Repair initial inguinal hernia, age 5 years or older; reducible
Also known as:
- Emergency Abdominal Hernia Repair with Mesh
- Incarcerated Hernia Repair
- Strangulated Hernia Surgery
- Ventral Hernia Repair with Mesh
- Umbilical Hernia Repair
CPT Codes:
- 49594: Repair of anterior abdominal hernia(s) (ie, epigastric, incisional, ventral, umbilical, spigelian), any approach (ie, open, laparoscopic, robotic), initial, including implantation of mesh or other prosthesis when performed, total length of defect(s); 3 cm to 10 cm, incarcerated or strangulated
Also known as:
- Breast Lesion Excision
- Breast Cyst Removal
- Fibroadenoma Excision
- Breast Tumor Removal
- Nipple/Areolar Lesion Removal
CPT Codes:
- 19120: Excision of cyst, fibroadenoma, or other benign or malignant tumor, aberrant breast tissue, duct lesion, nipple or areolar lesion (except 19300), open, male or female, 1 or more lesions
Also known as:
- Partial Mastectomy
- Mastectomy
- Lumpectomy
- Breast conserving surgery
- Quadrantectomy
- Segmentectomy
CPT Codes:
- 19301: Mastectomy, partial (eg, lumpectomy, tylectomy, quadrantectomy, segmentectomy);
Also known as:
- Deep Armpit Lymph Node Biopsy
- Biopsy
- Axillary Lymph Node Excision
- Open Axillary Node Biopsy
- Underarm Lymph Node Removal
CPT Codes:
- 38525: Biopsy or excision of lymph node(s); open, deep axillary node(s)
Also known as:
- Arteriovenous Fistula Creation
- AV Fistula Surgery
- Cimino Fistula
- Vascular Access for Dialysis
CPT Codes:
- 36821: Arteriovenous anastomosis, open; direct, any site (eg, Cimino type) (separate procedure)
Does Dr. Marquez accept my insurance?
Dr. Marquez accepts most major insurance plans. Important: Please call our office at (956) 682-6126 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Marquez accept in Mission, TX?
Dr. Marquez in Mission, TX accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.
Top Insurances
All Other Third Party
Ascension Health
Centene Corporation
Cigna Group
Health Care Service Corporation
Medicaid
Medicare
State of Texas
UnitedHealth Group
Unknown
View All Insurances
Where is Dr. Marquez's office located?
Dr. Guillermo Marquez's Primary Practice
910 S Bryan Rd Ste 202
Mission, TX 78572
(956) 682-6126
What is Dr. Marquez's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Marquez's National Provider Identifier (NPI) number is 1861454563.
What common questions do patients ask about Dr. Marquez?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Marquez
What is Dr. Guillermo Marquez's specialty?
Dr. Marquez is a Surgeon near Mission, TX.
What does a Surgeon do?
General surgeons are experts in diagnosing and managing surgical conditions which includes preoperative, operative, and postoperative care, as well as addressing complications. Their expertise include the areas such as the alimentary tract, breast, abdomen, skin and soft tissue, endocrine system, head and neck, pediatric surgery, surgical critical care, surgical oncology, trauma, burns, and vascular surgery. General surgeons increasingly utilize minimally invasive and endoscopic techniques to provide proper care. In addition to this, many general surgeons have expertise in transplantation, plastic, and cardiothoracic surgery.
Is this Dr. Guillermo Marquez affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Marquez is affiliated with Mission Regional Medical Center, Dhr Health, Rio Grande Regional Hospital, Northwestern Memorial Hospital which are a Castle Connolly Top Hospitals. Castle Connolly Top Hospitals are healthcare institutions recognized for their excellence in specific medical procedures and overall patient care. They are identified through a rigorous peer nomination process, evaluating factors like patient outcomes, quality of care, and expertise. The list recognizes hospitals that excel in 20 or more specific medical procedures, representing the top 25% nationwide. Castle Connolly Top Hospitals
When to see a Surgeon?: Guides for symptoms, conditions, and treatments
Understand your symptoms and know when it’s time to see a Surgeon. Explore insights from trusted medical experts on EverydayHealth.com, where you'll find the most relevant content and helpful condition guides for up-to date information about symptoms, causes, diagnosis, treatment and more. See all our health guides to find trusted information on medical conditions from our experts at Everyday Health.
Is Guillermo Marquez accepting new patients in Mission, TX?
Yes, Dr. Guillermo Marquez is accepting new patients at this time.
Does Dr. Guillermo Marquez offer online booking?
Please contact Dr. Marquez's office at (956) 682-6126 for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Guillermo Marquez?
Please contact Dr. Marquez's office at (956) 682-6126 for information regarding telehealth appointment availability or for scheduling assistance.
Which board certifications does Dr. Guillermo Marquez have?
Dr. Guillermo Marquez is certified by the American Board of Surgery.
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