Dr. Yih-Dar Nien Shy, MD

Dr. Yih-Dar Nien Shy, MD

General Surgery  ·  
Male  ·  
41 y/o

Accepting new patients

Dr. Yih-Dar Nien Shy, MD is a general surgery specialist in Duarte, CA and has been practicing for 18 years. He specializes in general surgery.

Insurance Accepted

  • Aetna
  • Affiliated Health Funds
  • Beech Street (Multiplan)
  • Benefit Panel Services
  • Blue Shield of California
  • Care 1st Health Plan
  • Cigna
  • Coventry Health Care
  • First Health (Coventry Health Care)
  • HealthSmart - Interplan Health Group
  • Private HealthCare Systems
  • Three Rivers Provider Network
  • UnitedHealthCare

Learn about Dr. Nien Shy

Be confident in your decisions by checking out your provider's top areas of care, education, patient reviews and more. Learn about finding the right doctor for you.

Top Care Areas

See how frequently Dr. Nien Shy performs your care needs compared to other doctors.

Port Placements or Replacements
very high
more than 99% of peers
Laparoscopic Surgical Procedure
very high
more than 99% of peers
Appendectomy, Laparoscopic
very high
more than 99% of peers

Dr. Nien Shy's percentages are based on the rate of treatment compared to peers nationwide from insurance data. Learn more info about our data and this Top Care Areas component.

1  Specialties

  • General Surgery

1  Board Certifications

  • General Surgery
    Accredited by: American Board of Surgery*

68  Conditions Treated


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62  Procedures

  • Abscess or Cyst Drainage or Aspiration
  • Abscess or Fluid Incision and Drainage
  • Adrenalectomy
  • Appendectomy, Laparoscopic
  • Appendectomy, Open
  • Axillary Lymph Node Dissection
  • Bile Duct Procedure
  • Bladder Surgery
  • Bone Marrow Biopsy
  • Breast Surgical Procedure
  • Colectomy
  • Colon and Rectal Surgery
  • Cystectomy
  • Cystotomy
  • Destruction or Excision of Vaginal Lesions
  • Dressing and-or Debridement of Wound, Infection, or Burn (incl. Negative Pressure Wound Therapy)
  • Enterostomy (Laparoscopic or Open)
  • Esophageal Surgery
  • Excision of Breast Tumor
  • Excision of Parotid, Sublingual, or Submandibular Gland
  • Excision of Skin Lesion
  • Excision of Stomach Tumor
  • Excision, Shaving, or Destruction of Skin and Subcutaneous Tissue (incl. Mohs Micrographic Surgery), Tissue Transfer
  • Fistulectomy or Fistulotomy, Anal
  • Gallbladder Removal
  • Gallbladder Removal (Cholecystectomy), Laparoscopic
  • Gallbladder Removal (Cholecystectomy), Open
  • Gastric Bypass Surgery, Laparoscopic
  • Gastroenterology Procedures
  • Gastrotomy
  • Head and Neck Surgery
  • Heart Surgery
  • Hemorrhoidectomy or Excision of Anal Tags
  • Hernia Repair
  • Incision and Removal of Foreign Object
  • Incisional Hernia Repair, Laparoscopic
  • Inguinal Hernia Repair, Laparoscopic
  • Inguinal Hernia Repair, Open
  • Intestinal Transplant (incl. Enterectomy)
  • Laparoscopic Surgical Procedure
  • Laparotomy
  • Lung Surgery
  • Lymph Node Biopsy or Excision
  • Mastectomy
  • Open Incisional and-or Ventral Hernia Repair
  • Paraesophageal Hernia Repair, Laparoscopic
  • Parathyroidectomy
  • Pelvic Exenteration (For: Gynecologic, Urinary, or Colorectal Malignancy)
  • Port Placements or Replacements
  • Proctectomy, Open or Laparoscopic (incl. Swenson and Duhamel Procedures)
  • Removal of Reproductive Organs (Hysterectomy, Oophorectomy, Salpingectomy, Salpingo-Oophorectomy, Resection of Peritoneal Malignancy)
  • Removal or Destruction of Rectal or Intestinal Tumor (incl. Colonoscopy, Proctosigmoidoscopy, Sigmoidoscopy and Control of Hemorrhage)
  • Skin Grafts
  • Splenectomy
  • Splenectomy and Splenorrhaphy
  • Stomach Surgery
  • Thoracentesis
  • Tracheal Surgery
  • Transendoscopic Stent Placement
  • Umbilical or Ventral Hernia Repair, Laparoscopic
  • Vaginal Surgery
  • Wound Repair


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Background Check

0 Malpractice Claims

No malpractice history found for California.

0 Sanctions

No sanctions history found for the years that Healthgrades collects data.

0 Board Actions

No board actions found for the years that Healthgrades collects data.


  • Pontificia Universidad Catolica De Chile, Facultad De Medicina
    Medical School | Graduated 2000
  • University of Southern California
    Internship Hospital | Completed
  • Marshall University
    Residency Hospital | Completed

Awards & Recognition

Awards & Honors
  • Healthgrades Honor Roll
Media & Publications

Dr. Nien Shy has no media or publications listed.

Languages Spoken

  • English

Memberships & Professional Affiliations

Dr. Nien Shy does not have any memberships or affiliations listed. If you are Dr. Nien Shy and would like to add memberships or affiliations, please update your profile.

Providence Holy Cross Medical Center

is a Recipient of a Healthgrades Excellence Award
America's 100 Best Hospitals Award

Hospital Quality Award

Dr. Nien Shy is on the medical staff at our top-rated hospital.

View awards

Dr. Nien Shy's Reviews

Likelihood of recommending Dr. Nien Shy to family and friends
8 total reviews (1 has a comment)

Likelihood to Recommend (8)

  • 5
  • 4
  • 3
  • 2
  • 1

Dr. Nien Shy's Performance

  • Trustworthiness

  • Explains condition(s) well

  • Answers questions

  • Time well spent


Office & Staff Performance

  • Scheduling

  • Office environment

  • Staff friendliness

  • Average wait time

    10 to 15 minutes

Patient Comments (1)

I had a massive ventral hernia. Dr. Nien was wonderful. He put me at ease right away and he fixed it. I have already referred my son-in-law to hi and Dr. Nien took care of his problem also.
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