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Dr. John Allendorf, MD

Surgical Oncology* Age 53
Dr. John Allendorf, MD
4.5 (19 Ratings)
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Dr. John Allendorf, MD is a Surgical Oncologist in Mineola, NY.
Dr. John Allendorf, MD
4.5 (19 Ratings)
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Dr. John Allendorf, MD

Surgical Oncology* Age 53
Mineola, NY
Accepting new patients
27 years of experience
Dr. John Allendorf, MD is a Surgical Oncologist in Mineola, NY.

About

Dr. Allendorf graduated from Columbia University Vagelos College of Physicians and Surgeons in 1997 and completed a residency at New York Presbyterian Hospital Columbia University Medical Center.Dr. John Allendorf, MD is a Surgical Oncologist in Mineola, NY and has 27 years experience. Dr. Allendorf currently practices at Practice and are affiliated with NYU Langone Hospitals. Dr. Allendorf has experience treating conditions like Retroperitoneum Cancer and Parathyroid Cancer among other conditions at varying frequencies. At present, Dr. Allendorf received an average rating of 4.5/5 from patients and has been reviewed 19 times. Dr. Allendorf's office accepts new patients. Dr. Allendorf is board certified in General Surgery and accepts multiple insurance plans.

Explains Conditions Well

Patients said this doctor explains conditions well.

Trustworthy

Patients said this doctor is trustworthy.

Friendly Staff

Patients said the staff was friendly.

Easy Scheduling

Patients said scheduling was easy.

Compare with other Surgical Oncologists

Compare Dr. Allendorf with our nearby Surgical Oncologists at Newyork-Presbyterian Queens
These providers are on the medical staff of Newyork-Presbyterian Queens
These providers are on the medical staff of Newyork-Presbyterian Queens.
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Experience Check

Enter a condition or procedure
Thyroidectomy
Retroperitoneum Cancer
Parathyroid Cancer
Thyroidectomy
Retroperitoneum Cancer
Parathyroid Cancer
Neuroendocrine Tumors
Pancreatic Cancer
Parathyroid (Gland) Tumor: Other than Malignant
Thyroid Cancer
Thyroid Lobectomy
Liver Biopsy
Lymphadenectomy With Robotic Assistance
Open Gallbladder Removal (Cholecystectomy)
Parathyroidectomy
Cholangiocarcinoma
Cholecystitis and Gallstones
Constipation
Gallstones
Hyperparathyroidism
Intestinal Obstruction
Liver Cancer
Metastatic Respiratory System Cancer
Parathyroid (Gland) Disease
Small Intestine Cancer
Thyroid Nodule
Upper Digestive Tract Cancer
Bile Duct Procedure
Gallbladder Removal
Gastrectomy
Laparoscopic Gallbladder Removal (Cholecystectomy)
Lymph Node Biopsy or Excision
Port Placements or Replacements
Splenectomy
Splenectomy with Robotic Assist
Abdominal Pain
Adrenal Gland Cancer
Anal and Rectal Cancer
Appendicitis
Ascites
  • View other providers who treat Ascites
Barrett's Esophagus
Biliary Tract Cancer
Bladder Cancer
Bladder Diverticulum
Bone Cancer
Brain Cancer
Breast Cancer
Breast Lump
Carcinoid Syndrome
Colorectal Cancer
Crohn's Disease
Diaphragmatic and Hiatal Hernia
Empyema
  • View other providers who treat Empyema
Esophageal Cancer
Fallopian Tube Cancer
Gallbladder and Biliary Tract Cancer
Gallbladder Cancer
Gallbladder Diseases
Gastric Ulcer
Gastroparesis
Gynecologic Cancer
Hypothalamus Cancer
Ileus
  • View other providers who treat Ileus
Incisional Hernia
Inflammatory Bowel Disease
Inguinal Hernia
Intestinal Abscess
Intestinal Diverticulitis
Intestinal Diverticulosis
Intestinal Prolapse
Langerhans Cell Histiocytosis
Lipomas
  • View other providers who treat Lipomas
Lung Cancer
Malignant Pituitary Gland Tumor
Median Arcuate Ligament Syndrome (MALS)
Metastatic Breast Cancer
Multiple Endocrine Neoplasia
Myeloid Sarcoma
Neoplasm of Gastrointestinal Tract
Nodular Sclerosis Hodgkins Lymphoma
Non-Hodgkin's Lymphoma
Obstructed Inguinal Hernia
Osteosarcoma
Ovarian Cancer
Pancreas Carcinoma
Pancreatic Disease
Pelvic Abscess
Peptic Ulcer
Peripheral Vascular Disease (PAD, PVD)
Peritoneal Cancer
Pheochromocytoma
Pineal Region Tumors
Pituitary Gland Cancer
Pituitary Tumor
Pleural Effusion
Pyloric Stenosis
Salivary Gland Cancer
Secondary Malignancies
Soft Tissue Sarcoma
Stomach and Small Intestine Cancer
Stomach Cancer
Thymomas
  • View other providers who treat Thymomas
Traumatic Brain Injury
Ulcerative Colitis
Umbilical Hernia
Uterine Cancer
Ventral Hernia
Abdominal Surgery
Adjacent Tissue Transfer
Adrenalectomy
Adrenalectomy with Robotic Assist
Appendectomy
Arterial Catheterization with Robotic Assist
Axillary Lymph Node Dissection
Biliary Drainage
Bone Marrow Biopsy
Colectomy
Colostomy
Duodenal Polypectomy
Excision of Bile Duct Tumor
Gallbladder Surgery
Gastrectomy with Robotic Assist
Gastric Restrictive With Partial Gastrectomy or Jejunojejunostomy
Gastrotomy
Hepatectomy
Incision and Removal of Foreign Object
Laparoscopic Appendectomy
Laparoscopic Cholecystectomy Robotic Assist
Laparoscopic Inguinal Hernia Repair
Laparoscopic Surgical Procedure
Laparotomy
Lymphadenectomy with Robotic Assist
Minimally Invasive Surgery
Non Invasive Mechanical Ventilatn Robotic Assist
Open Thymectomy
Open Tumor Ablation, Liver
Pancreatectomy (incl. Pancreas Transplant and Whipple Procedure)
Peripheral Artery Catheterization
Removal or Destruction of Rectal or Intestinal Tumor (incl. Colonoscopy, Proctosigmoidoscopy, Sigmoidoscopy and Control of Hemorrhage)
Resection or Ablation of Bone Tumor, Partial or Complete Resection of Bone, Debridement of Bone
Revision of Gastric Anastomosis or Restrictive Procedure
Salpingectomy with Robotic Assist
Salpingo Oopherectomy
Soft Tissue Tumor Removal
Thoracentesis
Thyroid Surgery
Wedge Resection Stomach

Insurance Accepted

* Please verify this information when scheduling an appointment.
  • Freedom
    Liberty
  • Flex Connecticut EPO
    Passage HMO
  • Choice Care Network PPO
    Choice Care PPO
    Choice POS
  • MVP Health Plan EPO
  • Blue Card PPO
  • Pro Plans EPO
    Pro Plus Plans EPO
    Total Plans EPO
  • Fidelis Care
  • Navigate POS
    Nexus Open Access
    Options PPO
    Choice Plus POS
    Navigate HMO
  • MagnaCare PPO
  • Managed Choice (Open Access) POS
    Open Choice PPO
    AWH NJ Choice MultiTier POS II
    AWH NJ Choice MultiTier - Standard Savings POS II
    Aetna HMO
    Choice Plus POS II
    Premier Care Network Plus - Innovation Health
    Select
    Signature Administrators PPO
    Elect Choice (Open Access) EPO
  • SimplyBlue/Simply Blue Plus PPO
    BluePPO HSA PPO
  • GHI CBP
    HIP Prime HMO
  • BCBS PPO
  • Empire Blue Cross Blue Shield PPO
    Blue Acess Employer Sponsored
    Empire Hospital
    Empire Hospital/Medical (Trad)
  • Open Access Plus
    Cigna HMO
    Cigna PPO

Locations

  1. 1 Winthrop Surgery Associates
    120 Mineola Blvd Ste 320, Mineola, NY 11501
  2. 2 Nyu Langone Bariatric Surgery Associates-Garden City & Patchogue-Patchogue
    157 E Woodside Ave, Patchogue, NY 11772
    Monday
    Closed
    Tuesday
    08:30 - 16:30
    Wednesday
    Closed
    Thursday
    Closed
    Friday
    Closed
    Saturday
    Closed
    Sunday
    Closed

Patient Satisfaction

Likelihood to recommend Dr. Allendorf
4.5
Based on 19 Reviews
5 Stars (15)
4 Stars (2)
3 Stars (0)
2 Stars (0)
1 Star (2)

Leave a review

How likely are you to recommend Dr. Allendorf?

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Patient Reviews
Aug 27, 2024
I’m so glad I went to dr Allendorf he explained my procedure and answered my questions and concerns he’s an excellent surgeon so happy with my results he saved me his staff is amazing just like him.Anyone looking for a great surgeon that’s the guy to go to he’s very knowledgeable and professional.
Christine Dayal — Aug 27, 2024
See more reviews on Healthgrades
Photo: Dr. John Allendorf, MD
How would you rate your experience with Dr. John Allendorf, MD?
  • Likelihood of recommending Dr. Allendorf to family and friends

Dr. Allendorf's Office & Staff

  • Ease of scheduling urgent appointments
  • Office environment, cleanliness, comfort, etc.
  • Staff friendliness and courteousness
  • Total wait time (waiting & exam rooms)

Experience with Dr. Allendorf

  • Level of trust in provider's decisions
  • How well provider explains medical condition(s)
  • How well provider listens and answers questions
  • Hpends appropriate amount of time with patients

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About Me

Specialties*
Surgical Oncology
General Surgery
Specialties*
  • *Sharecare does not verify qualifications for medical specialties. Please verify your provider's specialty and qualifications directly with your provider and applicable medical board.
Education

Education

Medical Education
  • Columbia University Vagelos College of Physicians and Surgeons
    1997
Medical Education

Board Certifications

Board Certifications
  • General Surgery
Board Certifications
What’s a board certification and why is it important that my provider has one?

A board certification represents a provider’s dedication to ongoing training in one or more specialties, including the completion of intensive exams. While not all specialties have board certifications, if your provider does have one they’ve taken the extra step to master their specialty and to keep up with the latest advancements in their field.

Internship

Internship
  • Columbia Presbyterian Medical Center
    1998
Internship

Residency

Residency Hospital
  • New York Presbyterian Hospital Columbia University Medical Center
    2002
Residency Hospital

Fellowship

Fellowship Hospital
  • Columbia U/Ny Pres Hospital
    2003
Fellowship Hospital
Common Questions and Answers
Responses are sourced directly from patients.
Does Dr. Allendorf communicate via email?
2 users said yes.
Yes
(2)
No
(3)
Does Dr. Allendorf offer telehealth services or virtual visits?
4 users said yes.
Yes
(4)
No
(1)
Does Dr. Allendorf offer an online patient portal?
5 users said yes.
Yes
(5)
No
(0)
Does Dr. Allendorf have free onsite parking?
4 users said yes.
Yes
(4)
No
(0)
Does Dr. Allendorf offer weekend visits?
No users said yes.
Yes
(0)
No
(5)
Does Dr. Allendorf offer evening visits?
5 users said yes.
Yes
(5)
No
(0)
Does Dr. Allendorf specialize in working with children or adolescents?
No responses yet.
Yes
(0)
No
(0)
Does Dr. Allendorf specialize in working with seniors?
No responses yet.
Yes
(0)
No
(0)
Does Dr. Allendorf specialize in couples therapy?
No responses yet.
Yes
(0)
No
(0)
Does Dr. Allendorf specialize in working with LGBTQ+ community?
No responses yet.
Yes
(0)
No
(0)
Does Dr. Allendorf accept insurance?
No responses yet.
Yes
(0)
No
(0)

Frequently Asked Questions

Find contact information here to make an appointment.

A list of accepted insurance providers is available on the Sharecare insurance check. It is always a good idea to verify your insurance when making an appointment.

New patients are generally accepted by Dr. John Allendorf, MD. To arrange an appointment, call the number on Dr. Allendorf's profile.

Dr. Allendorf frequently treats the following conditions: Retroperitoneum Cancer and Parathyroid Cancer. See more on Sharecare.

Dr. John Allendorf, MD is affiliated with NYU Langone Hospitals.

Yes, Dr. John Allendorf, MD holds board certification in General Surgery.

Hospital Affiliations

  • NYU Langone Hospitals

    550 1st Ave, New York, NY