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Dr. Guillermo Marquez, MD

Dr. Guillermo Marquez, MD

Mission, TX

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, UnitedHealthcare 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 Dr. Marquez 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.

    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

    Also known as:

    • End-Stage Kidney Disease
    • Kidney Failure
    • Chronic Kidney Disease (CKD)
    • Helping Your Child Adapt to Life with Chronic Kidney Disease
    • ESRD
    • End-Stage Renal Failure

    ICD-10 Codes:

    • N186: End stage renal disease

    Also known as:

    • Umbilical Hernia
    • Hernia
    • Belly Button Hernia
    • Navel Hernia
    • Umbilical Rupture

    ICD-10 Codes:

    • K429: Umbilical hernia without obstruction or gangrene

    Also known as:

    • Sebaceous Cyst
    • Skin Condition
    • Epidermoid Cyst
    • Keratin Cyst
    • Skin Lump

    ICD-10 Codes:

    • L723: Sebaceous cyst

    What procedures does Dr. Marquez 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.

    Also known as:

    • Laparoscopic Gallbladder Removal with X-ray
    • Laparoscopic Gallbladder Removal
    • Keyhole Gallbladder Surgery
    • Cholecystectomy with Cholangiography
    • Minimally Invasive Gallbladder Removal
    • Cholecystectomy Laparoscopic
    • Minimally Invasive Gallbladder Surgery

    CPT Codes:

    • 47563: Laparoscopy, surgical; cholecystectomy with cholangiography
    • 47562: Laparoscopy, surgical; cholecystectomy

    Also known as:

    • Small Abdominal Hernia Repair
    • Inguinal Hernia Repair (Adults and Children 5+)
    • Emergency Groin Hernia Repair
    • Abdominal Hernia Repair with Mesh
    • Repair of Small Abdominal Hernia (Complicated)
    • 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
    • Inguinal Hernia Surgery
    • Strangulated Hernia Repair
    • Incarcerated Hernia Surgery
    • Ventral Hernia Repair
    • Umbilical Hernia Repair
    • Incisional Hernia Repair
    • Epigastric Hernia Surgery
    • Epigastric Hernia Repair
    • Umbilical Hernia Surgery
    • Incisional Hernia Repair with Mesh
    • Strangulated 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
    • 49507: Repair initial inguinal hernia, age 5 years or older; incarcerated or strangulated
    • 49593: 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, reducible
    • 49592: 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, incarcerated or strangulated

    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:

    • Large Benign Skin Lesion Removal
    • Removal of Benign Skin Lesion
    • Benign Skin Growth Excision
    • Skin Tumor Removal (Benign)
    • Large Skin Lesion Biopsy
    • Skin Lesion Removal Surgery
    • Mole Removal
    • Skin Tumor Excision

    CPT Codes:

    • 11406: Excision, benign lesion including margins, except skin tag (unless listed elsewhere), trunk, arms or legs; excised diameter over 4.0 cm
    • 11403: Excision, benign lesion including margins, except skin tag (unless listed elsewhere), trunk, arms or legs; excised diameter 2.1 to 3.0 cm

    Also known as:

    • Partial Mastectomy
    • Simple Mastectomy
    • Mastectomy
    • Lumpectomy
    • Breast conserving surgery
    • Quadrantectomy
    • Segmentectomy
    • Complete Mastectomy
    • Breast Removal Surgery
    • Total Mastectomy
    • Unilateral Mastectomy

    CPT Codes:

    • 19301: Mastectomy, partial (eg, lumpectomy, tylectomy, quadrantectomy, segmentectomy);
    • 19303: Mastectomy, simple, complete

    Also known as:

    • Removal of Benign Skin Lesion (Trunk/Limbs)
    • Removal of Non-Cancerous Skin Growth (1.1-2.0 cm)
    • Benign Skin Growth Excision
    • Skin Lesion Removal Surgery
    • Mole Removal (Large)
    • Benign Skin Lesion Excision
    • Skin Tumor Removal (Benign)
    • Mole Removal (Non-Cancerous)

    CPT Codes:

    • 11404: Excision, benign lesion including margins, except skin tag (unless listed elsewhere), trunk, arms or legs; excised diameter 3.1 to 4.0 cm
    • 11402: Excision, benign lesion including margins, except skin tag (unless listed elsewhere), trunk, arms or legs; excised diameter 1.1 to 2.0 cm

    Also known as:

    • Draining a Lump or Collection of Fluid
    • Abscess Aspiration
    • Cyst Drainage
    • Hematoma Puncture
    • Bulla Aspiration

    CPT Codes:

    • 10160: Puncture aspiration of abscess, hematoma, bulla, or cyst

    Also known as:

    • Modified Radical Mastectomy
    • Mastectomy
    • Breast Removal with Lymph Node Dissection
    • Breast Cancer Surgery

    CPT Codes:

    • 19307: Mastectomy, modified radical, including axillary lymph nodes, with or without pectoralis minor muscle, but excluding pectoralis major muscle

    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)

    Also known as:

    • Inserting a Long-Term IV Port (Central Line)
    • Tunneled central venous catheter insertion
    • Subcutaneous port placement
    • Central line with port

    CPT Codes:

    • 36561: Insertion of tunneled centrally inserted central venous access device, with subcutaneous port; age 5 years or older

    Also known as:

    • Removal of Tunneled Central Venous Catheter
    • Central Line Removal
    • Tunneled Catheter Extraction
    • Venous Access Device Removal

    CPT Codes:

    • 36589: Removal of tunneled central venous catheter, without subcutaneous port or pump

    Also known as:

    • Basilic Vein Transposition for Dialysis Access
    • AV Fistula Creation
    • Basilic Vein Fistula
    • Dialysis Access Fistula
    • Upper Arm AV Fistula

    CPT Codes:

    • 36819: Arteriovenous anastomosis, open; by upper arm basilic vein transposition

    Also known as:

    • Tunneled Central Venous Catheter Removal
    • Central Line Explant
    • Port-a-Cath Removal
    • Implantable Venous Access Device Removal
    • Tunneled Catheter Extraction

    CPT Codes:

    • 36590: Removal of tunneled central venous access device, with subcutaneous port or pump, central or peripheral insertion

    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:

    • Sentinel Lymph Node Mapping
    • Lymph Node Identification
    • Sentinel Node Biopsy (Mapping)
    • Dye Injection for Lymph Nodes

    CPT Codes:

    • 38900: Intraoperative identification (eg, mapping) of sentinel lymph node(s) includes injection of non-radioactive dye, when performed (List separately in addition to code for primary procedure)

    Also known as:

    • Inhalation Breathing Treatment
    • Nebulizer Treatment
    • Aerosol Treatment
    • IPPB Treatment
    • Airway Obstruction Treatment

    CPT Codes:

    • 94640: Pressurized or nonpressurized inhalation treatment for acute airway obstruction for therapeutic purposes and/or for diagnostic purposes such as sputum induction with an aerosol generator, nebulizer, metered dose inhaler or intermittent positive pressure breathing (IPPB) device

    Also known as:

    • Large Soft Tissue Tumor Removal (Back/Flank)
    • Large Soft Tissue Tumor Removal (Neck/Chest)
    • Soft Tissue Tumor Excision
    • Back Tumor Removal
    • Flank Tumor Surgery
    • Intramuscular Tumor Excision
    • Neck soft tissue tumor removal
    • Chest wall tumor excision
    • Subfascial tumor removal
    • Large intramuscular tumor surgery

    CPT Codes:

    • 21933: Excision, tumor, soft tissue of back or flank, subfascial (eg, intramuscular); 5 cm or greater
    • 21554: Excision, tumor, soft tissue of neck or anterior thorax, subfascial (eg, intramuscular); 5 cm or greater

    Also known as:

    • Removal of Large Neck or Chest Tumor
    • Excision of subcutaneous tumor
    • Neck mass removal
    • Chest wall tumor surgery

    CPT Codes:

    • 21552: Excision, tumor, soft tissue of neck or anterior thorax, subcutaneous; 3 cm or greater

    Also known as:

    • Small Tumor Removal from Neck or Chest
    • Subcutaneous Tumor Excision
    • Soft Tissue Tumor Removal
    • Neck Lump Removal
    • Chest Wall Tumor Excision

    CPT Codes:

    • 21555: Excision, tumor, soft tissue of neck or anterior thorax, subcutaneous; less than 3 cm

    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

    • Crown Cork and Seal Company

    • Express Scripts

    • Health Care Service Corporation (HCSC)

    • Medicaid

    • Medicare

    • State of Tennessee

    • UnitedHealthcare

    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

    Get Directions

    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. 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. Contact Dr. Marquez to book an appointment today.

    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

    Where can I learn more about Surgeon?

    Explore Surgeon with 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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