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Dr. Gary Hamamoto, MD

Dr. Gary Hamamoto, MD

Baltimore, MD

40 Years of Experience

Affiliated with a Castle Connolly Top Hospital

    Who is Dr. Hamamoto, Surgeon in Baltimore, MD?

    Dr. Gary Hamamoto, MD is a Surgeon, who primarily practices in Baltimore, MD with 2 additional practice locations. He has been practicing for over 40 years and is board certified. Dr. Hamamoto graduated from University of Chicago Division of the Biological Sciences The Pritzker School of Medicine and completed his residency at Sinai Hosp Of Baltimore, General Surgery. Dr. Hamamoto is fluent in English, and is not currently seeing new patients. Dr. Hamamoto’s practice accepts Cigna, Medicare, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Hamamoto’s office at (410) 581-0700.

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

    • Residency: Sinai Hosp Of Baltimore, General Surgery | Sinai Hospital of Baltimore Program

    • Medical School: University of Chicago Division of the Biological Sciences The Pritzker School of Medicine

    Is Dr. Hamamoto board certified as a Surgeon?

    Yes, Dr. Gary Hamamoto, MD is board certified by the American Board of Surgery

    What languages does Dr. Hamamoto speak?

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

    • English

    What conditions does Dr. Hamamoto treat?

    As a Surgeon, Dr. Hamamoto 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. Hamamoto. 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:

    • Groin Hernia (One Side)
    • Umbilical Hernia
    • Hernia
    • Inguinal Hernia
    • Unilateral Inguinal Hernia
    • Single Groin Hernia
    • Hernia in One Groin
    • Belly Button Hernia
    • Navel Hernia
    • Umbilical Rupture

    ICD-10 Codes:

    • K4090: Unilateral inguinal hernia, without obstruction or gangrene, not specified as recurrent
    • K429: Umbilical hernia without obstruction or gangrene

    Also known as:

    • Gallstones
    • Cholelithiasis
    • Gallbladder stones
    • Biliary calculi

    ICD-10 Codes:

    • K8020: Calculus of gallbladder without cholecystitis without obstruction

    Also known as:

    • Trunk Lump or Swelling
    • Body Mass
    • Torso Lump
    • Trunk Nodule

    ICD-10 Codes:

    • R222: Localized swelling, mass and lump, trunk

    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:

    • Colon Cancer Screening
    • Health Screening
    • Colorectal Cancer Screening (PDQ®)
    • Screening Tests to Detect Colorectal Cancer and Polyps
    • Tests to Detect Colorectal Cancer and Polyps
    • Colorectal Cancer Screening
    • Colonoscopy Screening
    • Bowel Cancer Screening

    ICD-10 Codes:

    • Z1211: Encounter for screening for malignant neoplasm of colon

    Also known as:

    • Colon Polyps
    • Colonic Polyps
    • Colorectal polyps
    • Bowel polyps
    • Intestinal polyps

    ICD-10 Codes:

    • K635: Polyp of colon

    What procedures does Dr. Hamamoto perform?

    As a Surgeon, Dr. Hamamoto 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. Hamamoto. 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:

    • Colonoscopy with Biopsy
    • Colonoscopy with Polyp Removal
    • Diagnostic Colonoscopy with Biopsy
    • Colonoscopy with Hemorrhoid Ligation
    • Colonoscopy with Polyp/Tumor Removal
    • Colonoscopy
    • Colorectal Cancer Screening Tests
    • Flexible Colonoscopy
    • Colon Biopsy
    • Large Intestine Scope
    • Colorectal Cancer Screening
    • Flexible Colonoscopy with Polypectomy
    • Colon Polyp Removal
    • Colorectal Lesion Excision
    • Colon Exam with Biopsy
    • Lower Endoscopy
    • Colon Cancer Screening
    • Hemorrhoid Banding
    • Colon Exam with Ligation
    • Flexible colonoscopy with ablation
    • Colon polyp removal
    • Colon tumor destruction
    • Therapeutic colonoscopy

    CPT Codes:

    • 45380: Colonoscopy, flexible; with biopsy, single or multiple
    • 45385: Colonoscopy, flexible; with removal of tumor(s), polyp(s), or other lesion(s) by snare technique
    • 45378: Colonoscopy, flexible; diagnostic, including collection of specimen(s) by brushing or washing, when performed (separate procedure)
    • 45398: Colonoscopy, flexible; with band ligation(s) (eg, hemorrhoids)
    • 45388: Colonoscopy, flexible; with ablation of tumor(s), polyp(s), or other lesion(s) (includes pre- and post-dilation and guide wire passage, when performed)

    Also known as:

    • Laparoscopic Inguinal Hernia Repair
    • Repair of Small Abdominal Hernia (Complicated)
    • Large Abdominal Hernia Repair (Incarcerated/Strangulated)
    • Laparoscopic Repair of Recurrent Inguinal Hernia
    • Inguinal Hernia Repair (Adults and Children 5+)
    • Keyhole Groin Hernia Surgery
    • Minimally Invasive Hernia Repair
    • Laparoscopic Hernioplasty
    • Epigastric Hernia Repair
    • Umbilical Hernia Surgery
    • Incisional Hernia Repair with Mesh
    • Strangulated Hernia Surgery
    • Emergency Abdominal Hernia Surgery
    • Incarcerated Hernia Repair
    • Strangulated Hernia Repair
    • Complex Ventral Hernia Repair
    • Recurrent Groin Hernia Surgery
    • Laparoscopic Inguinal Hernioplasty
    • Groin Hernia Surgery
    • Reducible Inguinal Hernia Repair
    • First Inguinal Hernia Fix
    • Adult Inguinal Hernia Surgery

    CPT Codes:

    • 49650: Laparoscopy, surgical; repair initial inguinal hernia
    • 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
    • 49596: 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); greater than 10 cm, incarcerated or strangulated
    • 49651: Laparoscopy, surgical; repair recurrent inguinal hernia
    • 49505: Repair initial inguinal hernia, age 5 years or older; reducible

    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:

    • Upper Endoscopy with Biopsy
    • Biopsy
    • Endoscopy
    • EGD with Biopsy
    • Gastroscopy with Biopsy
    • Esophagogastroduodenoscopy with Biopsy

    CPT Codes:

    • 43239: Esophagogastroduodenoscopy, flexible, transoral; with biopsy, single or multiple

    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:

    • Upper Endoscopy with Polyp Removal
    • EGD with Polypectomy
    • Esophagus, Stomach, Duodenum Scope with Removal
    • Flexible Endoscopy Tumor Excision

    CPT Codes:

    • 43251: Esophagogastroduodenoscopy, flexible, transoral; with removal of tumor(s), polyp(s), or other lesion(s) by snare technique

    Also known as:

    • Hemorrhoid Removal with Rubber Band Ligation
    • Rubber Band Ligation for Hemorrhoids
    • Internal Hemorrhoid Ligation
    • Banding of Hemorrhoids
    • Hemorrhoid Banding

    CPT Codes:

    • 46221: Hemorrhoidectomy, internal, by rubber band ligation(s)

    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:

    • Colonoscopy with Injections
    • Colonoscopy
    • Colorectal Cancer Screening Tests
    • Flexible Colonoscopy with Injection
    • Colon Scope with Medication
    • Therapeutic Colonoscopy

    CPT Codes:

    • 45381: Colonoscopy, flexible; with directed submucosal injection(s), any substance

    Also known as:

    • Small Soft Tissue Tumor Removal (Back/Flank)
    • Removal of Soft Tissue Tumor (Neck/Chest)
    • Face or Scalp Tumor Removal
    • Large Tumor Removal from Face or Scalp
    • Small Tumor Removal from Neck or Chest
    • Large Soft Tissue Tumor Removal (Forearm/Wrist)
    • Soft Tissue Tumor Excision
    • Back Tumor Removal
    • Flank Tumor Surgery
    • Neck Tumor Excision
    • Chest Wall Tumor Removal
    • Soft Tissue Mass Excision
    • Soft tissue tumor excision
    • Subcutaneous tumor removal
    • Facial lump removal
    • Face Tumor Excision
    • Scalp Tumor Removal (Deep)
    • Soft Tissue Tumor Surgery (Face/Scalp)
    • Subfascial Tumor Excision
    • Subcutaneous Tumor Excision
    • Soft Tissue Tumor Removal
    • Neck Lump Removal
    • Chest Wall Tumor Excision
    • Forearm Tumor Excision
    • Wrist Soft Tissue Tumor Surgery
    • Intramuscular Tumor Removal (Arm)

    CPT Codes:

    • 21932: Excision, tumor, soft tissue of back or flank, subfascial (eg, intramuscular); less than 5 cm
    • 21556: Excision, tumor, soft tissue of neck or anterior thorax, subfascial (eg, intramuscular); less than 5 cm
    • 21012: Excision, tumor, soft tissue of face or scalp, subcutaneous; 2 cm or greater
    • 21014: Excision, tumor, soft tissue of face and scalp, subfascial (eg, subgaleal, intramuscular); 2 cm or greater
    • 21555: Excision, tumor, soft tissue of neck or anterior thorax, subcutaneous; less than 3 cm
    • 25073: Excision, tumor, soft tissue of forearm and/or wrist area, subfascial (eg, intramuscular); 3 cm or greater

    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:

    • Small Soft Tissue Tumor Removal (Back/Flank)
    • Back Lump Excision
    • Flank Tumor Surgery
    • Subcutaneous Mass Removal

    CPT Codes:

    • 21930: Excision, tumor, soft tissue of back or flank, subcutaneous; less than 3 cm

    Also known as:

    • Removal of Small Soft Tissue Tumor (Hip/Pelvis)
    • Hip Soft Tissue Tumor Excision
    • Pelvic Soft Tissue Mass Removal
    • Intramuscular Tumor Excision Hip

    CPT Codes:

    • 27048: Excision, tumor, soft tissue of pelvis and hip area, subfascial (eg, intramuscular); less than 5 cm

    Also known as:

    • Muscle or Skin Flap Surgery (Trunk)
    • Myocutaneous Flap (Body)
    • Fasciocutaneous Flap (Trunk)
    • Tissue Flap Reconstruction (Torso)

    CPT Codes:

    • 15734: Muscle, myocutaneous, or fasciocutaneous flap; trunk

    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:

    • Complex Wound Repair on Torso (2.6-7.5 cm)
    • Trunk Wound Closure (Complex)
    • Deep Torso Laceration Repair
    • Complex Body Wound Stitching

    CPT Codes:

    • 13101: Repair, complex, trunk; 2.6 cm to 7.5 cm

    Also known as:

    • Skin Flap Surgery (Medium)
    • Tissue Rearrangement Surgery
    • Local Flap Surgery
    • Skin Graft (Adjacent Tissue)

    CPT Codes:

    • 14301: Adjacent tissue transfer or rearrangement, any area; defect 30.1 sq cm to 60.0 sq cm

    Also known as:

    • Skin Flap Surgery (Trunk)
    • Adjacent tissue transfer
    • Local flap surgery
    • Skin rearrangement

    CPT Codes:

    • 14000: Adjacent tissue transfer or rearrangement, trunk; defect 10 sq cm or less

    Also known as:

    • Adjacent Tissue Transfer (Trunk)
    • Skin Flap Surgery
    • Local Flap Reconstruction
    • Tissue Rearrangement Surgery
    • Skin Repair Surgery

    CPT Codes:

    • 14001: Adjacent tissue transfer or rearrangement, trunk; defect 10.1 sq cm to 30.0 sq 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:

    • Large Malignant Skin Lesion Removal
    • Skin Cancer Excision
    • Large Malignant Growth Removal
    • Wide Excision of Skin Cancer
    • Trunk/Limb Skin Cancer Surgery

    CPT Codes:

    • 11606: Excision, malignant lesion including margins, trunk, arms, or legs; excised diameter over 4.0 cm

    Does Dr. Hamamoto accept my insurance?

    Dr. Hamamoto accepts most major insurance plans. Important: Please call our office at (410) 581-0700 before your appointment to verify that your specific plan and network are accepted.

    What insurance plans does Dr. Hamamoto accept in Baltimore, MD?

    Dr. Hamamoto in Baltimore, MD accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.

    Top Insurances

    • All Other Third Party

    • Americaid

    • Carefirst BlueCross BlueShield

    • Cigna

    • CVS Health (formerly Aetna)

    • Express Scripts

    • Johns Hopkins

    • Medicare

    • State of Tennessee

    • UnitedHealthcare

    View All Insurances

    Where is Dr. Hamamoto's office located?

    Dr. Gary Hamamoto's Primary Practice

    2435 W Belvedere Ave

    Baltimore, MD 21215

    (410) 581-0700

    Get Directions

    Dr. Gary Hamamoto's Practice 2

    23 Crossroads Dr Ste 240

    Owings Mills, MD 21117

    (410) 581-0700

    Get Directions

    Dr. Gary Hamamoto's Practice 3

    5401 Old Court Rd

    Randallstown, MD 21133

    Get Directions

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

    Dr. Hamamoto's National Provider Identifier (NPI) number is 1356348833.

    What common questions do patients ask about Dr. Hamamoto?

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

    What is Dr. Gary Hamamoto's specialty?

    Dr. Hamamoto is a Surgeon near Baltimore, MD. 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. Hamamoto to book an appointment today.

    Is this Dr. Gary Hamamoto affiliated with a ranked Castle Connolly Top Hospital?

    Yes, Dr. Hamamoto is affiliated with Northwest Hospital, MedStar Franklin Square Medical Center 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 Gary Hamamoto accepting new patients in Baltimore, MD?

    No, Dr. Gary Hamamoto is not accepting new patients at this time.

    Does Dr. Gary Hamamoto offer online booking?

    Please contact Dr. Hamamoto's office at (410) 581-0700 for information about online booking, telehealth, or to schedule an appointment.

    How can I make an appointment with Gary Hamamoto?

    Please contact Dr. Hamamoto's office at (410) 581-0700 for information regarding telehealth appointment availability or for scheduling assistance.

    Which board certifications does Dr. Gary Hamamoto have?

    Dr. Gary Hamamoto is certified by the American Board of Surgery.

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