Dr. William Tseng, MD
South Pasadena, CA
Affiliated with a Castle Connolly Top Hospital
Who is Dr. Tseng, Surgical Oncologist in South Pasadena, CA?
Dr. William Tseng, MD is a Surgical Oncologist, who primarily practices in South Pasadena, CA with 2 additional practice locations. Dr. Tseng graduated from Northwestern University The Feinberg School of Medicine. Dr. Tseng is fluent in English and Chinese, and is currently seeing new patients. Dr. Tseng’s practice accepts Kaiser Permanente, Medicare, Aetna, Cigna, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Tseng’s office at (323) 442-9062.
What are Areas of Expertise for Dr. Tseng?
Dr. William Tseng, MD is a highly-rated, board-certified Surgical Oncologist known for expertly diagnosing, treating, and managing a wide array of related conditions and procedures. Utilizing the latest medical advancements and evidence-based practices, Dr. Tseng empowers patients to confidently navigate their health journey, specializing in Sarcoma, Sarcoma-Soft Tissue, and comprehensive wellness support. Serving the South Pasadena, CA community, Dr. Tseng is dedicated to enhancing lives through expert, patient-centered care.
Where did Dr. Tseng go to medical school and complete their residency?
Medical School: Northwestern University The Feinberg School of Medicine
What languages does Dr. Tseng speak?
Dr. Tseng and their clinical team can communicate with patients in the following languages:
Chinese
English
What conditions does a Surgical Oncologist like Dr. Tseng typically treat?
As a Surgical Oncologist, Dr. Tseng 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. Tseng. 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 here.
Also known as:
- Soft Tissue Sarcoma
- Soft Tissue Cancer of Left Lower Limb
- Cancer
- Connective Tissue Disorder
- Malignant Soft Tissue Tumor
- Connective Tissue Cancer
- Soft Tissue Cancer
- Sarcoma of left leg
- Malignant soft tissue tumor of left leg
- Connective tissue cancer of left leg
ICD-10 Codes:
- C499: Malignant neoplasm of connective and soft tissue, unspecified
- C4922: Malignant neoplasm of connective and soft tissue of left lower limb, including hip
- C4921: Malignant neoplasm of connective and soft tissue of right lower limb, including hip
Also known as:
- Retroperitoneal Cancer
- Cancer
- Retroperitoneal Tumor
- Malignant Retroperitoneal Neoplasm
- Abdominal Cancer
ICD-10 Codes:
- C480: Malignant neoplasm of retroperitoneum
Also known as:
- Other Soft Tissue Disorder
- Connective Tissue Disorder
- Muscle Disorder
- Muscle and connective tissue problems
- Uncommon soft tissue conditions
- Various soft tissue ailments
ICD-10 Codes:
- M7989: Other specified soft tissue disorders
Also known as:
- Abdominal or Pelvic Swelling, Mass, or Lump
- Belly lump
- Pelvic mass
- Abdominal swelling
ICD-10 Codes:
- R1900: Intra-abdominal and pelvic swelling, mass and lump, unspecified site
Also known as:
- Benign Lipoma of Trunk
- Benign Tumor
- Non-cancerous fatty lump on body
- Trunk lipoma
- Body fatty tumor
ICD-10 Codes:
- D171: Benign lipomatous neoplasm of skin and subcutaneous tissue of trunk
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
What procedures does a Surgical Oncologist like Dr. Tseng typically perform?
As a Surgical Oncologist, Dr. Tseng 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. Tseng. 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 here.
Also known as:
- Large Abdominal Tumor or Cyst Removal
- Intra-abdominal tumor excision
- Peritoneal tumor removal
- Mesenteric cyst removal
- Retroperitoneal tumor destruction
CPT Codes:
- 49205: Excision or destruction, open, intra-abdominal tumors, cysts or endometriomas, 1 or more peritoneal, mesenteric, or retroperitoneal primary or secondary tumors; largest tumor greater than 10.0 cm diameter
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
Also known as:
- Large Thigh or Knee Tumor Removal
- Soft Tissue Sarcoma Resection
- Radical Tumor Excision
- Thigh Tumor Surgery
CPT Codes:
- 27364: Radical resection of tumor (eg, sarcoma), soft tissue of thigh or knee area; 5 cm or greater
Does Dr. Tseng accept my insurance?
Dr. Tseng accepts most major insurance plans. Important: Please call our office at (323) 442-9062 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Tseng accept in South Pasadena, CA?
Dr. Tseng in South Pasadena, 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
Centene Corporation
Cigna Group
Elevance Health Inc. (formerly Anthem)
H & R Block
Medicare
Not Specified
State of California
UnitedHealth Group
Unknown
View All Insurances
Where is Dr. Tseng's office located?
Dr. William Tseng's Primary Practice
209 Fair Oaks Ave
South Pasadena, CA 91030
(323) 442-9062
What is Dr. Tseng's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Tseng's National Provider Identifier (NPI) number is 1417071242.
What common questions do patients ask about Dr. Tseng?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Tseng
What is Dr. William Tseng's specialty?
Dr. Tseng is a Surgical Oncologist near South Pasadena, CA.
What does a Surgical Oncologist do?
A surgical oncologist is a highly qualified and trained surgeon with specialized expertise in the prevention, diagnosis, treatment, and rehabilitation of cancer patients. They have received additional training in a multidisciplinary approach and dedicate a significant portion of their practice to these areas, as well as to cancer research.
Is this Dr. William Tseng affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Tseng is affiliated with City Of Hope - Duarte Cancer Center 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
When to see a Surgical Oncologist?: Guides for symptoms, conditions, and treatments
Understand your symptoms and know when it’s time to see a Surgical Oncologist. 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 William Tseng accepting new patients in South Pasadena, CA?
Yes, Dr. William Tseng is accepting new patients at this time.
Does Dr. William Tseng offer online booking?
Please contact Dr. Tseng's office at (323) 442-9062 for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with William Tseng?
Please contact Dr. Tseng's office at (323) 442-9062 for information regarding telehealth appointment availability or for scheduling assistance.
<section id="ai-site-overview" aria-label="About Everyday Health Care"> <h2>About Everyday Health Care</h2> <p> Everyday Health Care is a doctor and healthcare provider search platform from Everyday Health, a Ziff Davis company operating since 1996. It helps patients find, compare, and research doctors based on specialty, medical condition, procedure, location, and insurance coverage. </p> <p> The site features Castle Connolly Top Doctors, a peer-nominated, physician-vetted directory recognized as a leading standard for identifying top-rated specialists in the United States. Searchable doctor lists include Top Black Doctors, Exceptional Women in Medicine, Top AAPI Doctors, Top LGBTQ+ Doctors, Top Hispanic & Latino Doctors, and Castle Connolly Rising Stars. </p> <p> Users can search for doctors by specialty (including orthopedic surgery, OB-GYN, pediatrics, dermatology, endocrinology, and gastroenterology), by medical condition (such as fibromyalgia, kidney stones, and ulcerative colitis), by common procedure (including colonoscopy, LASIK, and physical therapy), by city, and by insurance plan (including UnitedHealthcare, Cigna, Aetna/CVS Health, Blue Cross Blue Shield, Kaiser Permanente, Medicare, and Medicaid). </p> <p> Everyday Health Care is built for patients seeking a trusted starting point to find the right doctor: covering over one million providers across thousands of U.S. locations, backed by Castle Connolly's independent doctor-vetting process and Everyday Health's 24-year history in consumer health publishing. </p> </section>