Dr. William Diehl, MD

Dr. William Diehl, MD

Surgical Oncology  ·  
Male  ·  
Age 61
(19)
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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

140 Park Ave Fl 3

Florham Park, NJ 07932

Contact Information

Insurance Accepted

  • Aetna
  • Amerihealth
  • Blue Cross Blue Shield
  • Cigna
  • Commercial Insurance Company
  • CoreSource
  • EBS-RMSCO
  • EmblemHealth
  • First Health (Coventry Health Care)
  • 13 More

*Please verify this information when scheduling an appointment.

Background Check

1 Malpractice Claim Found
No disciplinary actions found for the years we collect data
No board actions found for the years we collect data
Learn more about background checks

Experience Check

Check Dr. Diehl's experience treating your condition or procedure

Dr. Diehl's Top Procedures and Conditions

Treatment Frequency
Breast Diseases
very high
very high

Treatment Frequency

Dr. Diehl treats Breast Diseases more than 99% of his peers

Dr. Diehl treats this condition more than 99% of his peers

Breast Cancer
very high
very high

Treatment Frequency

Dr. Diehl treats Breast Cancer more than 93% of his peers

Dr. Diehl treats this condition more than 93% of his peers

Rating Includes other areas of care:

  • Angiosarcoma of the Breast
  • Basal Type Breast Cancer
  • Breast Cancer Recurrence
  • Ductal Carcinoma in Situ
  • Inflammatory Breast Cancer
  • Invasive Breast Cancer
  • Invasive Ductal Carcinoma
  • Invasive Lobular Carcinoma
  • Locally Advanced Breast Cancer
  • Lymphoma of the Breast
  • Male Breast Cancer
  • Malignant Breast Tumor
  • Metastatic Breast Cancer
  • Osteosarcoma of the Breast
  • Pre-Invasive Breast Cancer
  • Radiation-Induced Angiosarcoma of the Breast
  • Secretory Breast Carcinoma
  • Tubular Carcinoma
Cancer
very high
very high

Treatment Frequency

Dr. Diehl treats Cancer more than 90% of his peers

Dr. Diehl treats this condition more than 90% of his peers

Rating Includes other areas of care:

  • Adenoid Cystic Carcinoma
  • Adolescent Cancer
  • Adrenal Cortical Carcinoma
  • Adrenal Gland Cancer
  • Adult Cerebral Astrocytoma
  • Adult Small Cell Lung Cancer
  • Ampullary Carcinoma
  • Anal and Rectal Cancer
  • Anal Cancer
  • Anaplastic Oligodendroglioma
  • Angiosarcoma of the Breast
  • Appendix Cancer
  • Astrocytoma
  • Basal Cell Carcinoma (BCC)
  • Basal Type Breast Cancer
  • Benign Astrocytoma
  • Bile Duct Cancer
  • Biliary Cancer
  • Bladder Cancer
  • Blood Cancer
  • Bone Cancer
  • Brain and Nervous System Cancer (Includes: Gliomas, Astrocytoma, Schwannoma, Medulloblastoma, Chordoma)
  • Brain Cancer
  • Brainstem Glioma
  • Breast Cancer
  • Breast Cancer Recurrence
  • Bronchioalveolar Carcinoma
  • Bronchogenic Carcinoma
  • Cancer of Floor of Mouth
  • Cerebellar Astrocytoma
  • Cerebral Astrocytoma
  • Cervical Cancer
  • Cholangiocarcinoma
  • Chordoma
  • Choriocarcinoma
  • Chromophobe Renal Cell Carcinoma
  • Clear Cell Adenocarcinoma
  • Clear Cell Renal Cell Carcinoma
  • Colorectal Cancer
  • Cutaneous Squamous Cell Carcinoma
  • Distal Colorectal Cancer
  • Distal Gastrointestinal Tract Cancers
  • Ductal Carcinoma in Situ
  • Duodenal Cancer
  • Ear Cancer
  • Endocrine Cancer
  • Endometrial Cancer
  • ENT Cancer
  • Epidermoid Carcinoma
  • Epithelial-Myoepithelial Carcinoma
  • Esophageal Cancer
  • Extrahepatic Bile Duct Cancer
  • Eye Cancer
  • Facial Skin Cancer
  • Fallopian Tube Cancer
  • Familial Colorectal Cancer
  • Familial Pancreatic Cancer
  • Familial Renal Cancer
  • Familial Renal Cell Carcinoma
  • Fibrolamellar Hepatocellular Carcinoma
  • Follicular Adenocarcinoma
  • Follicular Thyroid Cancer
  • Gall Bladder Cancer
  • Gallbladder & Biliary Tract Cancer
  • Gastric Cancer, Borrmann 4
  • Gastroenterologic Cancer (Colon, Stomach, Esophageal, Liver)
  • Genital System Cancer
  • Genitourinary Cancers
  • Gland Cancer
  • Glassy Cell Carcinoma
  • Glioma
  • Gliomatosis Cerebri
  • Gynecologic Cancer
  • Hamartomatous Colorectal Cancer
  • Heart Cancer
  • Hepatobiliary Cancer
  • Hepatocellular Cancer
  • Hepatocellular Carcinoma
  • Hip Cancer
  • Hypopharyngeal Cancer
  • Inflammatory Breast Cancer
  • Infundibulocystic Basal Cell Carcinoma
  • Intestinal Cancer
  • Intrahepatic Cholangiocarcinoma
  • Invasive Breast Cancer
  • Invasive Ductal Carcinoma
  • Invasive Lobular Carcinoma
  • Joint Cancer
  • Juvenile Pilocytic Astrocytoma
  • Laryngeal Cancer
  • Laryngeal Carcinoma
  • Limb Cancer
  • Lip Cancer
  • Liver Cancer
  • Locally Advanced Breast Cancer
  • Lung Cancer
  • Lymphoma of the Breast
  • Male Breast Cancer
  • Male Genitourinary Cancer
  • Malignant Astrocytoma
  • Malignant Breast Tumor
  • Malignant Glioma
  • Mediastinal Cancer
  • Medullary Thyroid Cancer
  • Medulloblastoma
  • Melanoma-Astrocytoma Syndrome
  • Merkel Cell Cancer
  • Metastatic Adrenal Gland Cancer
  • Metastatic Blood Cancer
  • Metastatic Bone Cancer
  • Metastatic Breast Cancer
  • Metastatic Cancer
  • Metastatic Liver Cancer
  • Metastatic Lymph Cancer
  • Metastatic Nervous System Cancer
  • Metastatic Prostate Cancer
  • Metastatic Skin Cancer
  • Metastatic Soft Tissue Cancer
  • Metastatic Spinal Cord Cancer
  • Metastatic Squamous Neck Cancer With Occult Primary
  • MSI-H Colorectal Cancer
  • MSI-L Colorectal Cancer
  • MSS Colorectal Cancer
  • Muscle Cancer
  • Nasal Cavity Cancer
  • Nasopharyngeal Cancer
  • Neck Cancer
  • Nerve Cancer
  • Neuroendocrine Cancer
  • Nevoid Basal Cell Carcinoma Syndrome
  • Nodular Basal Cell Carcinoma
  • Noduloulcerative Basal Cell Carcinoma
  • Non-Melanoma Skin Cancer
  • Nonpolyposis Colorectal Cancer, Familial
  • Non-Small Cell Lung Cancer
  • Nose Cancer
  • Oligodendroglioma
  • Oral Cancer
  • Oral Squamous Cell Carcinoma
  • Oropharyngeal Cancer
  • Oropharyngeal Cancer, Adult
  • Osteosarcoma of the Breast
  • Ovarian Cancer
  • Ovarian Epithelial Cancer
  • Palate Cancer
  • Pancreatic Cancer
  • Pancreatic Islet Cell Cancer
  • Papillary Renal Cell Carcinoma
  • Papillary Thyroid Cancer
  • Paranasal Sinus Cancer
  • Parathyroid (Gland) Cancer
  • Parathyroid Carcinoma
  • Parotid Gland Cancer
  • Pediatric Cancer
  • Pelvic Cancer
  • Penile Cancer
  • Pharyngeal Cancer
  • Pigmented Basal Cell Carcinoma
  • Pleura Cancer
  • Pre-Invasive Breast Cancer
  • Primary Prostate Cancer
  • Prostate Cancer
  • Prostate Cancer - Hereditary - 1
  • Prostate Cancer - Hereditary - 10
  • Prostate Cancer - Hereditary - 11
  • Prostate Cancer - Hereditary - 14
  • Prostate Cancer - Hereditary - 2
  • Prostate Cancer - Hereditary - 3
  • Prostate Cancer - Hereditary - 4
  • Prostate Cancer - Hereditary - 5
  • Prostate Cancer - Hereditary - 6
  • Prostate Cancer - Hereditary - 7
  • Prostate Cancer - Hereditary - 8
  • Prostate Cancer - Hereditary - 9
  • Prostate Cancer - Hereditary - X-Linked 1
  • Prostate Cancer - Hereditary - X-Linked 2
  • Prostate Cancer - Hereditary -12
  • Prostate Cancer - Hereditary -13
  • Prostate Cancer - Hereditary -15
  • Radiation-Induced Angiosarcoma of the Breast
  • Rectal Cancer
  • Renal (Kidney) Cancer
  • Renal Cell Cancer
  • Respiratory System Cancer
  • Retinal Cancer
  • Salivary Gland Cancer
  • Sebaceous Gland Carcinoma
  • Secretory Breast Carcinoma
  • Sinonasal Undifferentiated Carcinoma
  • Sinus Cancer
  • Skin Cancer
  • Small Cell Lung Cancer
  • Spinal Cord Cancer
  • Spleen Cancer
  • Sporadic Colorectal Cancer
  • Squamous Cell Carcinoma
  • Squamous Cell Carcinoma of Conjunctiva
  • Squamous Cell Carcinoma of Head and Neck
  • Stomach and Small Intestine Cancer
  • Stomach Cancer
  • Stomach Cancer, Familial
  • Superficial Basal Cell Carcinoma
  • Supraglottic Laryngeal Cancer
  • Testicular Cancer
  • Thoracic Cancer
  • Throat Cancer
  • Thymus Cancer
  • Thyroid Cancer
  • Thyroid Cancer, Anaplastic
  • Thyroid Cancer, Familial Medullary
  • Thyroid Cancer, Hurthle Cell
  • Tongue Cancer
  • Trachea Cancer
  • Transitional Cell Cancer
  • Transitional Cell Carcinoma
  • Tubular Carcinoma
  • Urachal Cancer
  • Ureteral Cancer
  • Urinary Tract Cancer
  • Uterine Cancer
  • Vaginal Cancer
  • Visual Pathway and Hypothalamic Glioma
  • Vocal Cord Carcinoma
  • Vulvar Cancer

Dr. Diehl's conditions and procedures:

Abdominal Disorders
Abscess
Acute Leukemia
Acute Myeloid Leukemia
All Lymphoma
Anemia
Appendectomy, Laparoscopic
Appendectomy, Open
Appendicitis
Autoimmune Diseases
Basal Cell Carcinoma
Benign Tumor
Bile Duct Procedure
Biliary Drainage
Biopsy of Breast
Bladder Cancer
Bleeding Disorders
Blood Disorders
Bone Cancer
Bone Disorders
Brain Disorders
Breast Cancer
Breast Diseases
Breast Lump
Breast Surgical Procedure
Cancer
Central Nervous System Lymphoma
Cervical Cancer
Cholangiocarcinoma
Cholecystectomy With Robotic Assistance
Cholecystitis and Gallstones
Cholecystoenterostomy
Chronic Lymphocytic Leukemia
Coagulation Disorders (incl. Hemophilia)
Colectomy
Colectomy and Sigmoidectomy With Robotic Assistance
Colon and Rectal Surgery
Colorectal Cancer
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 and Biliary Tract Cancer
Gallbladder Cancer
Gallbladder Removal
Gallbladder Removal (Cholecystectomy), Laparoscopic
Gallbladder Removal (Cholecystectomy), Open
Gastrectomy
Gastrectomy With Robotic Assistance
Gastrointestinal Diseases
Gastrotomy
Hepatectomy
Hernia
Hernia Repair
Hodgkin's Disease
Hypercoagulable State
Immune Thrombocytopenic Purpura (ITP)
Incisional Hernia
Incisional Hernia Repair, Laparoscopic
Inguinal Hernia
Inguinal Hernia Repair, Laparoscopic
Inguinal Hernia Repair, Open
Kidney Cancer
Laparoscopic Sigmoidectomy With Robotic Assistance
Laparoscopic Surgical Procedure
Laparotomy
Leukocytosis
Lipomas
Liver Cancer
Lymph Node Biopsy or Excision
Lymphadenectomy With Robotic Assistance
Lymphoma, Large-Cell
Marginal Zone Lymphoma
Mastectomy
Melanoma
Merkel Cell Carcinoma
Multiple Myeloma
Myelodysplastic Syndromes
Myeloproliferative Disorders
Non-Hodgkin's Lymphoma
Open Incisional and-or Ventral Hernia Repair
Ovarian Cancer
Pancreatectomy (incl. Pancreas Transplant and Whipple Procedure)
Pancreatic Cancer
Pancytopenia
Plasmapheresis
Port Placements or Replacements
Pregnancy-Related Disorders
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
Splenectomy
Splenectomy and Splenorrhaphy
Squamous Cell Carcinoma
Stomach and Small Intestine Cancer
Stomach Cancer
Stomach Surgery
Thalassemia
Throat Cancer (Nasopharyngeal)
Total Splenectomy With Robotic Assistance
Umbilical Hernia
Umbilical or Ventral Hernia Repair, Laparoscopic
Urinary Disorders
Uterine Cancer
Uterine Diseases
Ventral Hernia

About Me

Care Philosophy

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 th...

Specialties

  • Surgical Oncology
  • Breast Surgical Oncology
  • General Surgery

Board Certifications

Education

  • 1988
    Meml Sloan Kettering Canc C
    Fellowship Hospital
    1988
  • 1986
    Morristown Meml Hospital
    Residency Hospital
    1986
  • 1982
    Indiana University Med Center
    Residency Hospital
    1982
  • 1981
    Universidad Anahuac, Escuela De Medicina
    Medical School
    1981

Languages

  • Spanish
  • English

Dr. Diehl's Reviews

Likelihood to recommend Dr. Diehl

4.2

Based on 19 reviews

5 Stars
78.94736842105263%
(15)
4 Stars
0%
(0)
3 Stars
0%
(0)
2 Stars
5.2631578947368425%
(1)
1 Star
15.789473684210526%
(3)

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Dr. Diehl?
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Average Wait Time
  • 10 – 15 minutes
Dr. Diehl's Performance
  • Trustworthiness
  • Explains condition(s) well
  • Answers questions
  • Time well spent
Office & Staff Performance
  • Scheduling
  • Office environment
  • Staff friendliness
What People Say About Dr. William Diehl, MD
RecentMost Helpful
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I was treated by Dr. Diehl and would highly recommend him to family and friends if the need arises for a surgical oncologist. He was professional, knowledgeable, patient and had excellent bedside manner.
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Excellent surgeon
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Steve Adams -Cedar Grove NJ I was not the patient but the husband of one. I thought Dr. Diehl during obviously a difficult time for my wife was wonderful. He was sensitive and really listened and answered all her questions.
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I Didn’t think I would be posting again this year but i again needed a surgeon and of course I called Dr Diehl he is by far a great surgeon he has such compassion and understanding in treating the whole patient I can’t express enough the comfort I felt going into this second surgery knowing Dr...Read More
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Dr. Diehl performed my breast biopsy. He was wonderful. He was considerate, extremely kind, knowledgeable; and I just knew I was in good hands. He did not rush me out of the office and answered all my questions. He personally called me with the results in three business days after the biopsy....Read More
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Locations

Insurance accepted

Accepted insurance can change. Please double-check when making an appointment.

Aetna
Aetna Test HMO
Choice Plus Test POS II
Select
Amerihealth
Blue Cross Blue Shield
Blue Card Test PPO
Cigna
Cigna HMO
Cigna PPO
Great West Healthcare-Cigna PPO
Open Access Plus
Commercial Insurance Company
CoreSource
EBS-RMSCO
EmblemHealth
Health Insurance Plan of Greater New York (HIP) PPO
First Health (Coventry Health Care)
First Health (Coventry Health Care) Test PPO
Government Employees Health Association (GEHA)
GEHA
Guardian
HealthFirst
Highmark Blue Cross Blue Shield
Community Blue PPO
Horizon Blue Cross Blue Shield of New Jersey
Direct Access
Horizon Blue Cross Blue Shield HMO
Horizon Blue Cross Blue Shield POS
Horizon Blue Cross Blue Shield PPO
Humana
MagnaCare
MagnaCare PPO
Medicaid
Meritain Health
MultiPlan
MultiPlan Test PPO
PHCS Network PPO
Oxford Health Plans
Freedom Plan
QualCare
QualCare HMO
QualCare PPO
UnitedHealthCare
Choice Plus Test POS
Navigate HMO
Navigate POS
Options PPO
United Healthcare