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Dr. Douglas Aach, MD

Dr. Douglas Aach, MD

Shiloh, IL

Accepting patients

Affiliated with a Castle Connolly Top Hospital

    Who is Dr. Aach, Surgeon in Shiloh, IL?

    Dr. Douglas Aach, MD is a Surgeon, who primarily practices in Shiloh, IL with 2 additional practice locations. He is board certified. Dr. Aach graduated from University of Pennsylvania and completed his residency at Barnes-Jewish Hosp, General Surgery. Dr. Aach is fluent in English, and is currently seeing new patients. Dr. Aach’s practice accepts Medicare, UnitedHealthcare, Aetna, Cigna and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Aach’s office.

    What are Areas of Expertise for Dr. Aach?

    Dr. Douglas Aach, MD is a highly-rated, board-certified Surgeon known for expertly diagnosing, treating, and managing a wide array of related conditions or procedures. Utilizing the latest medical advancements and evidence-based practices, Dr. Aach empowers patients to confidently navigate their health journey, specializing in Breast Surgery, Gastrointestinal Surgery, General Surgery, Hernia, Surgical Oncology, Thyroid & Parathyroid Surgery, or comprehensive wellness support. Serving the Shiloh/IL community, Dr. Aach is dedicated to enhancing lives through expert, patient-centered care.

    Where did Dr. Aach go to medical school and complete their residency?

    • Residency: Barnes-Jewish Hosp, General Surgery | Barnes Jewish Hospital | Jewish Hospital of Cincinnati Program

    • Medical School: University of Mo-Kansas City Sch of Med, Kansas City Mo | University of Pennsylvania

    Is Dr. Aach board certified as a Surgeon?

    Yes, Dr. Douglas Aach, MD is board certified by the American Board of Surgery

    What languages does Dr. Aach speak?

    Dr. Aach and their clinical team can communicate with patients in the following languages:

    • English

    What conditions does Dr. Aach treat?

    As a Surgeon, Dr. Aach 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. Aach. 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:

    • Abnormal Breast Imaging Results
    • Mammography
    • Inconclusive mammogram
    • Unclear breast scan results
    • Abnormal breast scan

    ICD-10 Codes:

    • R928: Other abnormal and inconclusive findings on diagnostic imaging of breast

    Also known as:

    • Upper-Outer Quadrant Right Female Breast Cancer
    • Breast Cancer
    • Early Breast Cancer of the Left Breast
    • Right female breast cancer upper-outer
    • Upper-outer right female breast tumor
    • Malignant growth in upper-outer right female breast
    • Female Breast Cancer
    • Malignant Breast Tumor
    • Breast Carcinoma
    • Intraductal carcinoma in situ left breast
    • Precancerous cells left breast
    • Non-invasive breast cancer left breast
    • DCIS left breast

    ICD-10 Codes:

    • C50411: Malignant neoplasm of upper-outer quadrant of right female breast
    • C50412: Malignant neoplasm of upper-outer quadrant of left female breast
    • D0512: Intraductal carcinoma in situ of left breast

    Also known as:

    • Single Nontoxic Thyroid Nodule
    • Thyroid Disease
    • Benign Thyroid Nodule
    • Solitary Thyroid Nodule

    ICD-10 Codes:

    • E041: Nontoxic single thyroid nodule

    Also known as:

    • Calcium Spots on Mammogram
    • Mammography
    • Breast calcifications
    • Mammogram calcifications
    • Calcium deposits in breast

    ICD-10 Codes:

    • R921: Mammographic calcification found on diagnostic imaging of breast

    Also known as:

    • Groin Hernia (One Side)
    • Hernia
    • Inguinal Hernia
    • Unilateral Inguinal Hernia
    • Single Groin Hernia
    • Hernia in One Groin

    ICD-10 Codes:

    • K4090: Unilateral inguinal hernia, without obstruction or gangrene, not specified as recurrent

    What procedures does Dr. Aach perform?

    As a Surgeon, Dr. Aach 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. Aach. 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:

    • Ultrasound-Guided Breast Biopsy
    • Breast Lump Removal with Marker Guidance
    • Additional Breast Biopsy with Ultrasound Guidance
    • Stereotactic Breast Biopsy (Additional Lesion)
    • Breast Biopsy
    • Percutaneous Breast Biopsy
    • Breast Tissue Sample
    • Breast Lesion Biopsy with Clip
    • Image-Guided Breast Lesion Excision
    • Wire-Localized Breast Biopsy
    • Open Excision of Marked Breast Lesion
    • Breast Mass Removal with Marker
    • Percutaneous Breast Biopsy (Additional Lesion)
    • Breast Tissue Sample (Multiple Sites)
    • Image-Guided Breast Biopsy
    • Breast Lesion Sampling

    CPT Codes:

    • 19083: Biopsy, breast, with placement of breast localization device(s) (eg, clip, metallic pellet), when performed, and imaging of the biopsy specimen, when performed, percutaneous; first lesion, including ultrasound guidance
    • 19125: Excision of breast lesion identified by preoperative placement of radiological marker, open; single lesion
    • 19084: Biopsy, breast, with placement of breast localization device(s) (eg, clip, metallic pellet), when performed, and imaging of the biopsy specimen, when performed, percutaneous; each additional lesion, including ultrasound guidance (List separately in addition to code for primary procedure)
    • 19082: Biopsy, breast, with placement of breast localization device(s) (eg, clip, metallic pellet), when performed, and imaging of the biopsy specimen, when performed, percutaneous; each additional lesion, including stereotactic guidance (List separately in addition to code for primary procedure)

    Also known as:

    • Breast Biopsy with Stereotactic Guidance
    • Ultrasound-Guided Fine Needle Biopsy
    • Ultrasound-Guided Fine Needle Aspiration Biopsy
    • Breast Biopsy
    • Biopsy
    • Ultrasound
    • Stereotactic Breast Biopsy
    • Image-Guided Breast Biopsy
    • Percutaneous Breast Biopsy
    • Breast Lesion Biopsy
    • FNA Biopsy with Ultrasound
    • Image-Guided Biopsy
    • Fine Needle Aspiration
    • First Lesion Biopsy
    • Needle Biopsy with Ultrasound

    CPT Codes:

    • 19081: Biopsy, breast, with placement of breast localization device(s) (eg, clip, metallic pellet), when performed, and imaging of the biopsy specimen, when performed, percutaneous; first lesion, including stereotactic guidance
    • 10005: Fine needle aspiration biopsy, including ultrasound guidance; first lesion
    • 10006: Fine needle aspiration biopsy, including ultrasound guidance; each additional lesion (List separately in addition to code for primary procedure)

    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:

    • Breast Cyst Aspiration
    • Breast Cyst Drainage
    • Puncture of Breast Cyst

    CPT Codes:

    • 19000: Puncture aspiration of cyst of breast;

    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:

    • Breast Lesion Localization
    • Breast Marker Placement
    • Wire Localization Breast
    • Mammographic Guided Breast Localization

    CPT Codes:

    • 19281: Placement of breast localization device(s) (eg, clip, metallic pellet, wire/needle, radioactive seeds), percutaneous; first lesion, including mammographic guidance

    Also known as:

    • Removal of Non-Cancerous Skin Growth (1.1-2.0 cm)
    • Benign Skin Lesion Excision
    • Skin Tumor Removal (Benign)
    • Mole Removal (Non-Cancerous)

    CPT Codes:

    • 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:

    • Removal of Benign Skin Lesion
    • Benign Skin Growth Excision
    • Skin Lesion Removal Surgery
    • Mole Removal
    • Skin Tumor Excision

    CPT Codes:

    • 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:

    • Deep Armpit Lymph Node Biopsy
    • Superficial Lymph Node Needle Biopsy
    • Biopsy
    • Axillary Lymph Node Excision
    • Open Axillary Node Biopsy
    • Underarm Lymph Node Removal
    • Needle Lymph Node Biopsy
    • Cervical Lymph Node Biopsy
    • Inguinal Lymph Node Biopsy
    • Axillary Lymph Node Biopsy

    CPT Codes:

    • 38525: Biopsy or excision of lymph node(s); open, deep axillary node(s)
    • 38505: Biopsy or excision of lymph node(s); by needle, superficial (eg, cervical, inguinal, axillary)

    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:

    • Radioactive Tracer Injection for Sentinel Lymph Node Biopsy
    • Sentinel Node Mapping Injection
    • Lymph Node Tracer Injection
    • Radioactive Dye for Lymph Nodes
    • Sentinel Lymph Node Identification

    CPT Codes:

    • 38792: Injection procedure; radioactive tracer for identification of sentinel node

    Also known as:

    • Inguinal Hernia Repair (Adults and Children 5+)
    • Small Abdominal Hernia Repair
    • Abdominal Hernia Repair with Mesh
    • Groin Hernia Surgery
    • Reducible Inguinal Hernia Repair
    • First Inguinal Hernia Fix
    • Adult Inguinal Hernia Surgery
    • Ventral hernia repair
    • Umbilical hernia surgery
    • Epigastric hernia repair with mesh
    • Incisional hernia repair
    • Ventral Hernia Repair
    • Umbilical Hernia Repair
    • Incisional Hernia Repair
    • Epigastric Hernia Surgery

    CPT Codes:

    • 49505: Repair initial inguinal hernia, age 5 years or older; reducible
    • 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
    • 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

    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:

    • 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:

    • 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:

    • Vasectomy
    • Male Birth Control Surgery
    • Male Sterilization Procedure
    • Semen Analysis After Vasectomy

    CPT Codes:

    • 55250: Vasectomy, unilateral or bilateral (separate procedure), including postoperative semen examination(s)

    Also known as:

    • Removal of Large Soft Tissue Tumor (Back/Flank)
    • Subcutaneous Tumor Excision (Back)
    • Flank Tumor Removal
    • Large Soft Tissue Mass Excision
    • Back Tumor Surgery

    CPT Codes:

    • 21931: Excision, tumor, soft tissue of back or flank, subcutaneous; 3 cm or greater

    Does Dr. Aach accept my insurance?

    Dr. Aach accepts most major insurance plans. Important: Please call our office at before your appointment to verify that your specific plan and network are accepted.

    What insurance plans does Dr. Aach accept in Shiloh, IL?

    Dr. Aach in Shiloh, IL accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.

    Top Insurances

    • All Other Third Party

    • CVS Health (formerly Aetna)

    • Department of Defense / Tricare

    • Elevance Health Inc. (formerly Anthem)

    • Essence Healthcare

    • Express Scripts

    • Health Care Service Corporation (HCSC)

    • Humana

    • Medicare

    • State of Tennessee

    View All Insurances

    Where is Dr. Aach's office located?

    Dr. Douglas Aach's Primary Practice

    1414 Cross St Ste 330

    Shiloh, IL 62269

    Get Directions

    Dr. Douglas Aach's Practice 2

    340 W Lincoln St Ste 500

    Belleville, IL 62220

    (618) 277-7400

    Get Directions

    Dr. Douglas Aach's Practice 3

    3 Saint Elizabeth Blvd Ste 3400

    O Fallon, IL 62269

    Get Directions

    What is Dr. Aach's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.

    Dr. Aach's National Provider Identifier (NPI) number is 1508817040.

    What common questions do patients ask about Dr. Aach?

    Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Aach

    What is Dr. Douglas Aach's specialty?

    Dr. Aach is a Surgeon near Shiloh, IL. 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. Aach to book an appointment today.

    Is this Dr. Douglas Aach affiliated with a ranked Castle Connolly Top Hospital?

    Yes, Dr. Aach is affiliated with HSHS St. Elizabeth's Hospital which is a Castle Connolly Top Hospital. 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 Douglas Aach accepting new patients in Shiloh, IL?

    Yes, Dr. Douglas Aach is accepting new patients at this time.

    Does Dr. Douglas Aach offer online booking?

    Please contact Dr. Aach's office for information about online booking, telehealth, or to schedule an appointment.

    How can I make an appointment with Douglas Aach?

    Please contact Dr. Aach's office for information regarding telehealth appointment availability or for scheduling assistance.

    Which board certifications does Dr. Douglas Aach have?

    Dr. Douglas Aach is certified by the American Board of Surgery.

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