Accepting patients
Affiliated with a Castle Connolly Top Hospital
Who is Dr. Kwaan, Colon & Rectal Surgeon (Proctologist) in Los Angeles, CA?
Dr. Mary Kwaan, MD is a Colon & Rectal Surgeon (Proctologist), who primarily practices in Los Angeles, CA with 2 additional practice locations. She is board certified. Dr. Kwaan completed her residency at Brigham and Women's Hospital. Dr. Kwaan is fluent in English, and is currently seeing new patients. Dr. Kwaan’s practice accepts Cigna, Kaiser Permanente, Medicaid, Medicare, UnitedHealthcare, Aetna and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Kwaan’s office at (310) 794-7788.
What are Areas of Expertise for Dr. Kwaan?
Dr. Mary Kwaan, MD is a highly-rated, board-certified Colon & Rectal Surgeon (Proctologist) 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. Kwaan empowers patients to confidently navigate their health journey, specializing in Anorectal Disorders, Colon & Rectal Cancer & Surgery, Crohn's Disease, Diverticulitis, or comprehensive wellness support. Serving the Los Angeles/CA community, Dr. Kwaan is dedicated to enhancing lives through expert, patient-centered care.
Where did Dr. Kwaan go to medical school and complete their residency?
Fellowship: University of Minnesota (Colon and Rectal Surgery) | University of Minnesota, Fellow:Colon and Rectal Surgery
Residency: Brigham and Women's Hospital | Brigham and Women's Hospital
Is Dr. Kwaan board certified as a Colon & Rectal Surgeon (Proctologist)?
Yes, Dr. Mary Kwaan, MD is board certified by the American Board of Surgery
What languages does Dr. Kwaan speak?
Dr. Kwaan and their clinical team can communicate with patients in the following languages:
English
What conditions does Dr. Kwaan treat?
As a Colon & Rectal Surgeon (Proctologist), Dr. Kwaan 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. Kwaan. 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:
- Hemorrhoids
- Third Degree Hemorrhoids
- Hemorrhoidal Skin Tags
- Second Degree Hemorrhoids
- Piles
- Anal veins
- Swollen rectal veins
- Prolapsed hemorrhoids
- Grade 3 hemorrhoids
- Severe hemorrhoids
- Anal skin tags
- Perianal skin tags
- Leftover hemorrhoid skin
- Internal hemorrhoids that prolapse
- Grade 2 hemorrhoids
- Moderate hemorrhoids
ICD-10 Codes:
- K648: Other hemorrhoids
- K642: Third degree hemorrhoids
- K644: Residual hemorrhoidal skin tags
- K641: Second degree hemorrhoids
Also known as:
- Colorectal Cancer
- Rectal cancer
- Colon cancer
- Bowel cancer
- Malignant neoplasm of rectum
ICD-10 Codes:
- C20: Malignant neoplasm of rectum
Also known as:
- Other Anal and Rectal Condition
- Anal and Rectal Disorder
- Anal Disorder
- Rectal Disorder
- Proctitis
- Anal Disorders
- Rectal Disorders
- Anorectal disease
- Anal problems
- Rectal problems
ICD-10 Codes:
- K6289: Other specified diseases of anus and rectum
- K629: Disease of anus and rectum, unspecified
Also known as:
- Anal Fissure
- Anal Disorder
- Rectal Tear
- Fissure in Anus
- Perianal Fissure
ICD-10 Codes:
- K602: Anal fissure, unspecified
Also known as:
- Anal Fistula
- Perianal Fistula
- Fistula in Anus
- Rectal Fistula
ICD-10 Codes:
- K6030: Anal fistula, unspecified
Also known as:
- Anal Fistula
- Anal Disorder
- Fistulas
- Perianal Fistula
- Fistula-in-Ano
- Abnormal Anal Tract
ICD-10 Codes:
- K603: Anal fistula
Also known as:
- Rectal Prolapse
- Rectal Abscess
- Pelvic Floor Disorder
- Rectal Disorder
- Abscess
- Protruding Rectum
- Bowel Prolapse
- Rectal Eversion
- Perirectal Abscess
- Pus Pocket in Rectum
- Rectal Infection
ICD-10 Codes:
- K623: Rectal prolapse
- K611: Rectal abscess
Also known as:
- Complete Bowel Incontinence
- Bowel Incontinence
- Full fecal incontinence
- Total loss of bowel control
- Severe accidental bowel leakage
ICD-10 Codes:
- R159: Full incontinence of feces
Also known as:
- Rectal Bleeding
- Gastrointestinal Bleeding
- Gastrointestinal (GI) Bleeding
- Anal Bleeding
- Blood in Stool
- Lower GI Bleed
ICD-10 Codes:
- K625: Hemorrhage of anus and rectum
Also known as:
- Having an Ileostomy
- Ostomy
- Ostomy Surgery of the Bowel
- Ileal stoma
- Bowel diversion surgery
- Small intestine ostomy
ICD-10 Codes:
- Z932: Ileostomy status
Also known as:
- Anal Itching
- Anal Disorder
- Itching
- Pruritus Ani
- Itchy Anus
- Perianal Itch
ICD-10 Codes:
- L290: Pruritus ani
Also known as:
- Anal Cancer
- Anal Cancer Treatment (PDQ®)
- Anus Cancer
- Anal Carcinoma
ICD-10 Codes:
- C210: Malignant neoplasm of anus, unspecified
Also known as:
- Constipation
- Difficulty Passing Stool
- Infrequent Bowel Movements
- Hard Stools
ICD-10 Codes:
- K5900: Constipation, unspecified
Also known as:
- Intestinal Obstruction
- Bowel Obstruction
- Blocked Intestines
- Gut Blockage
ICD-10 Codes:
- K56609: Unspecified intestinal obstruction, unspecified as to partial versus complete obstruction
Also known as:
- History of rectal or anal cancer
- Colorectal Cancer
- Past rectal cancer
- Anal cancer survivor
- Previous rectosigmoid malignancy
ICD-10 Codes:
- Z85048: Personal history of other malignant neoplasm of rectum, rectosigmoid junction, and anus
What procedures does Dr. Kwaan perform?
As a Colon & Rectal Surgeon (Proctologist), Dr. Kwaan 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. Kwaan. 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 Colon Mobilization
- Laparoscopic Partial Colon Removal
- Laparoscopic Partial Colectomy
- Splenic Flexure Mobilization during Colon Surgery
- Splenic Flexure Mobilization
- Laparoscopic Colectomy Assist
- Colon Take-down Surgery
- Minimally Invasive Colectomy
- Laparoscopic Bowel Resection
- Keyhole Colon Surgery
- Minimally Invasive Colon Resection
- Keyhole Colectomy
- Ileocolostomy Surgery
- Splenic Flexure Take-down
- Colon Flexure Mobilization
- Colon Resection Add-on Procedure
- Minimally invasive colectomy
- Laparoscopic bowel resection
- Keyhole colon surgery
CPT Codes:
- 44213: Laparoscopy, surgical, mobilization (take-down) of splenic flexure performed in conjunction with partial colectomy (List separately in addition to primary procedure)
- 44204: Laparoscopy, surgical; colectomy, partial, with anastomosis
- 44205: Laparoscopy, surgical; colectomy, partial, with removal of terminal ileum with ileocolostomy
- 44139: Mobilization (take-down) of splenic flexure performed in conjunction with partial colectomy (List separately in addition to primary procedure)
- 44207: Laparoscopy, surgical; colectomy, partial, with anastomosis, with coloproctostomy (low pelvic anastomosis)
Also known as:
- Flexible Sigmoidoscopy
- Colorectal Cancer Screening Tests
- Sigmoidoscopy
- Lower colon exam
- Flexible colon scope
- Rectum and lower colon check
CPT Codes:
- 45330: Sigmoidoscopy, flexible; diagnostic, including collection of specimen(s) by brushing or washing, when performed (separate procedure)
Also known as:
- Seton Placement
- Fistula Seton Insertion
- Drainage Seton Placement
- Anal Fistula Treatment
CPT Codes:
- 46020: Placement of seton
Also known as:
- Intestine Ostomy Closure
- Small Intestine Resection
- Stoma Reversal Surgery
- Enterostomy Take-Down
- Bowel Ostomy Closure
- Enterectomy
- Bowel resection
- Small bowel removal
- Intestinal surgery
CPT Codes:
- 44625: Closure of enterostomy, large or small intestine; with resection and anastomosis other than colorectal
- 44120: Enterectomy, resection of small intestine; single resection and anastomosis
Also known as:
- Anal Lesion Excision
- Removal of Anal Warts
- Surgical Excision of Anal Lesions
- Anus Lesion Removal
CPT Codes:
- 46922: Destruction of lesion(s), anus (eg, condyloma, papilloma, molluscum contagiosum, herpetic vesicle), simple; surgical excision
Also known as:
- Anal Fistula Surgery
- Fistulectomy
- Fistulotomy
- Anal Fistula Repair
- Intersphincteric Fistula Repair
- Perianal Fistula Surgery
CPT Codes:
- 46280: Surgical treatment of anal fistula (fistulectomy/fistulotomy); transsphincteric, suprasphincteric, extrasphincteric or multiple, including placement of seton, when performed
- 46275: Surgical treatment of anal fistula (fistulectomy/fistulotomy); intersphincteric
Also known as:
- Diagnostic Colonoscopy with Biopsy
- Colonoscopy with Biopsy
- Colonoscopy
- Colorectal Cancer Screening Tests
- Flexible Colonoscopy
- Colon Exam with Biopsy
- Lower Endoscopy
- Colon Cancer Screening
- Colon Biopsy
- Large Intestine Scope
- Colorectal Cancer Screening
CPT Codes:
- 45378: Colonoscopy, flexible; diagnostic, including collection of specimen(s) by brushing or washing, when performed (separate procedure)
- 45380: Colonoscopy, flexible; with biopsy, single or multiple
Also known as:
- Anoscopy with Biopsy
- Biopsy
- Anoscopy
- Anal Scope with Tissue Sample
- Rectal Biopsy
- Anorectal Exam with Biopsy
CPT Codes:
- 46606: Anoscopy; with biopsy, single or multiple
Also known as:
- Flexible Sigmoidoscopy with Biopsy
- Colorectal Cancer Screening Tests
- Sigmoid Colon Scope with Biopsy
- Lower Endoscopy with Tissue Sample
- Flexible Sigmoidoscopy and Biopsy
- Rectum and Lower Colon Exam
CPT Codes:
- 45331: Sigmoidoscopy, flexible; with biopsy, single or multiple
Also known as:
- Anal Biopsy
- Rectal Wall Biopsy
- Anorectal Biopsy
- Anal Tissue Sample
CPT Codes:
- 45100: Biopsy of anorectal wall, anal approach (eg, congenital megacolon)
Also known as:
- Internal Hemorrhoid Ligation (Non-Rubber Band)
- Hemorrhoidectomy by ligation
- Internal hemorrhoid removal
- Surgical hemorrhoid treatment
CPT Codes:
- 46945: Hemorrhoidectomy, internal, by ligation other than rubber band; single hemorrhoid column/group, without imaging guidance
Also known as:
- Anoscopy (Diagnostic)
- Anoscopy
- Anal Canal Exam
- Rectal Scope Exam
- Anus Diagnostic Procedure
CPT Codes:
- 46600: Anoscopy; diagnostic, including collection of specimen(s) by brushing or washing, when performed (separate procedure)
Also known as:
- Anal Sphincter Nerve Block
- Internal Anal Sphincter Chemodenervation
- Anal Sphincter Injection
- Botox for Anal Fissure
- Chemical Denervation of Anal Muscle
CPT Codes:
- 46505: Chemodenervation of internal anal sphincter
Also known as:
- Removal of Multiple Hemorrhoids
- Hemorrhoidectomy
- Internal and External Hemorrhoid Surgery
- Piles Removal Surgery
CPT Codes:
- 46260: Hemorrhoidectomy, internal and external, 2 or more columns/groups;
Also known as:
- Partial Colon Removal with Small Intestine Connection
- Partial Colectomy with Ileocolostomy
- Ileocecal Resection
- Bowel Resection with Reconnection
CPT Codes:
- 44160: Colectomy, partial, with removal of terminal ileum with ileocolostomy
Also known as:
- Removal of Rectal Tumor
- Transanal Rectal Tumor Excision
- Partial Thickness Rectal Tumor Removal
- Rectal Lesion Excision
CPT Codes:
- 45171: Excision of rectal tumor, transanal approach; not including muscularis propria (ie, partial thickness)
Does Dr. Kwaan accept my insurance?
Dr. Kwaan accepts most major insurance plans. Important: Please call our office at (310) 794-7788 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Kwaan accept in Los Angeles, CA?
Dr. Kwaan in Los Angeles, 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
Cigna
City of Los Angeles
Crown Cork and Seal Company
Elevance Health Inc. (formerly Anthem)
Medicaid
Medicare
UnitedHealthcare
View All Insurances
Where is Dr. Kwaan's office located?
Dr. Mary Kwaan's Primary Practice
200 UCLA Medical Plz Ste 214
Los Angeles, CA 90095
(310) 794-7788
Recognitions
Awards
Harvard School of Public Health, Masters in Public
Health, .
Best Doctors for Women Minnesota Monthly Magazine
What is Dr. Kwaan's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Kwaan's National Provider Identifier (NPI) number is 1588732911.
What common questions do patients ask about Dr. Kwaan?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Kwaan
What is Dr. Mary Kwaan's specialty?
Dr. Kwaan is a Colon & Rectal Surgeon (Proctologist) near Los Angeles, CA. A colon and rectal surgeon possesses the expertise to diagnose and treat a variety of ailments affecting the intestinal tract, including the colon, rectum, anal canal, and perianal area, through both medical and surgical interventions. Furthermore, this professional also engages with other organs and tissues, including the liver, urinary system, and female reproductive system, that are relevant to primary intestinal disorders. Contact Dr. Kwaan to book an appointment today.
Is this Dr. Mary Kwaan affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Kwaan is affiliated with Ronald Reagan UCLA Medical 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
Where can I learn more about Colon & Rectal Surgeon (Proctologist)?
Explore Colon & Rectal Surgeon (Proctologist) 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 Mary Kwaan accepting new patients in Los Angeles, CA?
Yes, Dr. Mary Kwaan is accepting new patients at this time.
Does Dr. Mary Kwaan offer online booking?
Please contact Dr. Kwaan's office at (310) 794-7788 for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Mary Kwaan?
Please contact Dr. Kwaan's office at (310) 794-7788 for information regarding telehealth appointment availability or for scheduling assistance.
Which board certifications does Dr. Mary Kwaan have?
Dr. Mary Kwaan is certified by the American Board of Surgery.
Other Colon & Rectal Surgeon (Proctologist) Near Los Angeles, CA
Colon & Rectal Surgeon (Proctologist)
Accepting patientsDr. Kevork Kazanjian, MD is a Colon & Rectal Surgeon (Proctologist), who primarily practices in Los Angeles, CA with 2 additional practice locations. He is board certified.
Los Angeles, CA
TR
Surgeon
Accepting patientsDr. Tara Russell, MD is a Surgeon, who primarily practices in Los Angeles, CA with 2 additional practice locations.
Los Angeles, CA
AL
Colon & Rectal Surgeon (Proctologist)
Accepting patientsDr. Anne Lin, MD is a Colon & Rectal Surgeon (Proctologist), who primarily practices in Los Angeles, CA with 2 additional practice locations. She is board certified.
Los Angeles, CA