AC
Accepting patients
Affiliated with a Castle Connolly Top Hospital
Who is Dr. Callahan, Surgeon in Torrance, CA?
Dr. Ann Callahan, MD is a Surgeon, who primarily practices in Torrance, CA with 2 additional practice locations. Dr. Callahan is fluent in English and Spanish, and is currently seeing new patients. Dr. Callahan’s practice accepts Medicare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Callahan’s office at (612) 863-7770.
Where did Dr. Callahan go to medical school and complete their residency?
Medical School: University of Virginia
What languages does Dr. Callahan speak?
Dr. Callahan and their clinical team can communicate with patients in the following languages:
English
Spanish
What conditions does a Surgeon like Dr. Callahan typically treat?
As a Surgeon, Dr. Callahan 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. Callahan. 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:
- Breast Cancer
- Upper-Outer Quadrant Right Female Breast Cancer
- Mammary cancer
- Breast carcinoma
- Breast tumor
- 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
ICD-10 Codes:
- C50912: Malignant neoplasm of unspecified site of left female breast
- C50911: Malignant neoplasm of unspecified site of right female breast
- C50411: Malignant neoplasm of upper-outer quadrant of right female breast
- C50412: Malignant neoplasm of upper-outer quadrant of left female breast
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:
- Cancer Follow-up Exam
- Cancer
- Post-cancer treatment checkup
- Malignancy surveillance
- Oncology follow-up
ICD-10 Codes:
- Z08: Encounter for follow-up examination after completed treatment for malignant neoplasm
What procedures does a Surgeon like Dr. Callahan typically perform?
As a Surgeon, Dr. Callahan 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. Callahan. 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:
- 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:
- 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:
- 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:
- Breast Lesion Localization
- Breast clip placement
- Wire localization for breast surgery
- Radioactive seed placement in breast
- Ultrasound-guided breast marker
CPT Codes:
- 19285: Placement of breast localization device(s) (eg, clip, metallic pellet, wire/needle, radioactive seeds), percutaneous; first lesion, including ultrasound guidance
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 Lump Removal with Marker Guidance
- Image-Guided Breast Lesion Excision
- Wire-Localized Breast Biopsy
- Open Excision of Marked Breast Lesion
- Breast Mass Removal with Marker
CPT Codes:
- 19125: Excision of breast lesion identified by preoperative placement of radiological marker, open; single lesion
Also known as:
- Laparoscopic Gallbladder Removal
- Keyhole Gallbladder Surgery
- Cholecystectomy Laparoscopic
- Minimally Invasive Gallbladder Surgery
CPT Codes:
- 47562: Laparoscopy, surgical; cholecystectomy
Does Dr. Callahan accept my insurance?
Dr. Callahan accepts most major insurance plans. Important: Please call our office at (612) 863-7770 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Callahan accept in Torrance, CA?
Dr. Callahan in Torrance, CA accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.
Top Insurances
All Other Third Party
Blue Shield of California
Centene Corporation
Elevance Health Inc. (formerly Anthem)
Medicare
OptumRx Administered Payer
Other Health Care Provider
Other Provider Networks
UnitedHealth Group
Unknown
View All Insurances
Where is Dr. Callahan's office located?
Dr. Ann Callahan's Primary Practice
23451 Madison St Ste 340
Torrance, CA 90505
(612) 863-7770
What is Dr. Callahan's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Callahan's National Provider Identifier (NPI) number is 1093962847.
What common questions do patients ask about Dr. Callahan?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Callahan
What is Dr. Ann Callahan's specialty?
Dr. Callahan is a Surgeon near Torrance, CA.
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. Ann Callahan affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Callahan is affiliated with Torrance Memorial Medical Center, Providence Little Company Of Mary Medical Center Torrance 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 Ann Callahan accepting new patients in Torrance, CA?
Yes, Dr. Ann Callahan is accepting new patients at this time.
Does Dr. Ann Callahan offer online booking?
Please contact Dr. Callahan's office at (612) 863-7770 for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Ann Callahan?
Please contact Dr. Callahan's office at (612) 863-7770 for information regarding telehealth appointment availability or for scheduling assistance.
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