Dr. William Diehl, MD is a surgical oncology specialist in Florham Park, NJ and has been practicing for 30 years. He graduated from Universidad Anahuac, Escuela De Medicina in 1981 and specializes in surgical oncology, breast surgical oncology, and more.Read his story
Insurance Accepted
- Aetna
- Amerihealth
- Blue Cross Blue Shield
- Cigna
- Commercial Insurance Company
- CoreSource
- EBS-RMSCO
- EmblemHealth
- First Health (Coventry Health Care)
- + 13 More
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Learn about Dr. Diehl
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Top Care Areas
See how frequently Dr. Diehl performs your care needs compared to other doctors.
Breast Diseases
very high
more than 95% of peers
Cancer
high
more than 76% of peers
Stomach and Small Intestine Cancer
normal
more than 76% of peers
Dr. Diehl'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.
Dr. Diehl's bio
This content was provided by Dr. Diehl "Dr. Diehl is a board certified General Surgeon with special interest, training and expertise in Surgical Oncology and Breast Surgical Oncology. He trained at the prestigious Memorial Sloan-Kettering Cancer Center and is part of Summit Medical Group with admitting privileges at Morristown Medical Center and Saint Barnabas Medical Center. Dr. Diehl performs close to 750 surgical procedures a year, and, specific to breast cancer, treats approximately 150 new breast cancer patients"
Care Philosophy
This content was provided by Dr. Diehl "I firmly believe that the most effective doctors are those that treat patients, not diseases. Clearly understanding the disease of the patient is essential, but even diseases vary from patient to patient so I always teach the Surgical Residents that it's even more critical to know the patient than to know the disease. I strive to provide personalized services where I oversee all parts of patient care and am personally involved in all aspects.
With a specialty in General Surgery and a further Sub-Specialty in Surgical Oncology and Breast Surgical Oncology from Memorial Sloan Kettering Cancer Center, I am able to provide advanced treatment options to patients derived from an extensive, broad base of surgical experience. Summit Medical Group is affiliated with the prestigious MD Anderson Cancer Center in Houston which is the leading cancer center in the world. This affiliation and access to all their treatment protocols and algorithms also allow me to provide the most advanced treatment options available anywhere in the world."
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3 Specialties
- Surgical Oncology
- Breast Surgical Oncology
- General Surgery
1 Board Certifications
- General SurgeryAccredited by: American Board of Surgery*
67 Conditions Treated
- Abdominal Disorders
- Abscess
- Acute Leukemia
- Acute Myeloid Leukemia
- All Lymphoma
- Anemia
- Appendicitis
- Autoimmune Diseases
- Basal Cell Carcinoma
- Benign Tumor
- Bladder Cancer
- Bleeding Disorders
- Blood Disorders
- Bone Cancer
- Bone Disorders
- Brain Disorders
- Breast Cancer
- Breast Diseases
- Breast Lump
- Cancer
- Central Nervous System Lymphoma
- Cervical Cancer
- Cholangiocarcinoma
- Cholecystitis and Gallstones
- Coagulation Disorders (incl. Hemophilia)
- Colorectal Cancer
- Gallbladder and Biliary Tract Cancer
- Gallbladder Cancer
- Gastrointestinal Diseases
- Hernia
- Hodgkin's Disease
- Hypercoagulable State
- Immune Thrombocytopenic Purpura (ITP)
- Incisional Hernia
- Inguinal Hernia
- Kidney Cancer
- Leukocytosis
- Lipomas
- Liver Cancer
- Lymphoma, Large-Cell
- Marginal Zone Lymphoma
- Melanoma
- Merkel Cell Carcinoma
- Multiple Myeloma
- Myeloproliferative Disorders
- Non-Hodgkin's Lymphoma
- Ovarian Cancer
- Pancreatic Cancer
- Pancytopenia
- Primary Central Nervous System Lymphoma
- Primary Hypercoagulable State (incl. Factor V Leiden Disease)
- Prostate Cancer
- Purpura
- Retina Diseases
- Secondary Malignancies
- Skin Cancer
- Small Intestine Cancer
- Soft Tissue Sarcoma
- Squamous Cell Carcinoma
- Stomach and Small Intestine Cancer
- Stomach Cancer
- Throat Cancer (Nasopharyngeal)
- Umbilical Hernia
- Urinary Disorders
- Uterine Cancer
- Uterine Diseases
- Ventral Hernia
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43 Procedures
- Appendectomy, Laparoscopic
- Appendectomy, Open
- Bile Duct Procedure
- Biliary Drainage
- Biopsy of Breast
- Breast Surgical Procedure
- Cholecystectomy With Robotic Assistance
- Cholecystoenterostomy
- Colectomy
- Colectomy and Sigmoidectomy With Robotic Assistance
- Colon and Rectal Surgery
- Enterostomy (Laparoscopic or Open)
- Excision of Bile Duct Tumor
- Excision of Breast Tumor
- Excision of Rectal Tumor
- Excision of Skin Lesion
- Excision of Stomach Tumor
- Gallbladder Removal
- Gallbladder Removal (Cholecystectomy), Laparoscopic
- Gallbladder Removal (Cholecystectomy), Open
- Gastrectomy
- Gastrectomy With Robotic Assistance
- Gastrotomy
- Hepatectomy
- Hernia Repair
- Incisional Hernia Repair, Laparoscopic
- Inguinal Hernia Repair, Laparoscopic
- Inguinal Hernia Repair, Open
- Laparoscopic Sigmoidectomy With Robotic Assistance
- Laparoscopic Surgical Procedure
- Laparotomy
- Lymph Node Biopsy or Excision
- Lymphadenectomy With Robotic Assistance
- Mastectomy
- Open Incisional and-or Ventral Hernia Repair
- Pancreatectomy (incl. Pancreas Transplant and Whipple Procedure)
- Plasmapheresis
- Port Placements or Replacements
- Splenectomy
- Splenectomy and Splenorrhaphy
- Stomach Surgery
- Total Splenectomy With Robotic Assistance
- Umbilical or Ventral Hernia Repair, Laparoscopic
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Background Check
0 Malpractice Claims
No malpractice history found for New Jersey.
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.
Education
- Universidad Anahuac, Escuela De MedicinaMedical School | Graduated 1981
- Indiana University Med CenterResidency Hospital | Completed 1982
- Morristown Meml HospitalResidency Hospital | Completed 1986
- Meml Sloan Kettering Canc CFellowship Hospital | Completed 1988
Awards & Recognition
Awards & Honors
- Healthgrades Honor Roll
Media & Publications
Dr. Diehl has no media or publications listed.
Languages Spoken
- English
- Spanish
Memberships & Professional Affiliations
Dr. Diehl does not have any memberships or affiliations listed. If you are Dr. Diehl and would like to add memberships or affiliations, please update your profile.
Dr. Diehl's Reviews
Likelihood of recommending Dr. Diehl to family and friends
18 total reviews (8 have comments)
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Now Accepting New Patients
Dr. Diehl accepts 22 insurance carriers
- AetnaAetna HMOChoice Plus POS IISelect
- Amerihealth
- Blue Cross Blue ShieldBlue Card PPO
- CignaCigna HMOCigna PPOGreat West Healthcare-Cigna PPOOpen Access Plus
- Commercial Insurance Company
- CoreSource
- EBS-RMSCO
- EmblemHealthHealth Insurance Plan of Greater New York (HIP) PPO
- First Health (Coventry Health Care)First Health (Coventry Health Care) PPO
- Government Employees Health Association (GEHA)GEHA
- Guardian
- HealthFirst
- Highmark Blue Cross Blue ShieldCommunity Blue PPO
- Horizon Blue Cross Blue Shield of New JerseyDirect AccessHorizon Blue Cross Blue Shield HMOHorizon Blue Cross Blue Shield POSHorizon Blue Cross Blue Shield PPO
- Humana
- MagnaCareMagnaCare PPO
- Medicaid
- Meritain Health
- MultiPlanMultiPlan PPOPHCS Network PPO
- Oxford Health PlansFreedom Plan
- QualCareQualCare HMOQualCare PPO
- UnitedHealthCareChoice Plus POSNavigate HMONavigate POSOptions PPOUnited Healthcare
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Patient Comments (8)