Summary

Dr. John Sierocki is an oncologist and internal medicine specialist who has dedicated over five decades to treating cancer patients. He earned his medical degree from Hahnemann University School of Medicine and completed his residency at Hahnemann University Hospital. With 53 years of clinical experience, Dr. Sierocki brings extensive knowledge to his practice. He is fluent in both English and Chinese.

Dr. Sierocki practices at multiple locations throughout New Jersey, including Princeton, Plainsboro, and Monroe Township. His oncology expertise focuses on breast cancer care, including complex cases involving metastatic or recurrent breast cancer. He also treats Paget disease of the breast. Dr. Sierocki frequently orders comprehensive blood work and white blood cell analysis to monitor his patients' health during treatment. Patients have given him an average rating of 2.3 out of 5 on Vitals.

Overview based on verified provider data

Quick Facts

  • accepting new patients
  • 2.3
  • 53 years of experience
  • speaks English, Chinese
  • Hahnemann University Hospital
  • 8 written reviews
  • 2 specialties
  • 13 areas of expertise
  • 2 board certifications
  • 5 office locations
  • Male

Patients’ Perspective

  • Gave an accurate diagnosis
  • Provided follow-up after the visit
  • Flexible scheduling

Office Locations

Dr. John Stanley Sierocki has 5 locations

Princeton Healthcare Center

419 N Harrison StPrinceton, NJ 08540
Mon8:30 am - 7:30 pm
Tue8:30 am - 5:00 pm
Wed8:30 am - 5:00 pm
Thu8:30 am - 7:30 pm
Fri8:30 am - 5:00 pm
Sat9:00 am - 12:00 pm
SunClosed

Princeton Medical Group Pa

3 Liberty StPlainsboro, NJ 08536
Mon8:30 am - 5:00 pm
Tue8:30 am - 5:00 pm
Wed8:30 am - 5:00 pm
Thu8:30 am - 5:00 pm
Fri8:30 am - 5:00 pm
SatClosed
SunClosed

Applegarth Professional Center

2 RESEARCH WAY BLDG 2 STE 302MONROE TOWNSHIP, NJ 08831
Mon8:30 am - 5:00 pm
Tue8:30 am - 5:00 pm
Wed8:30 am - 5:00 pm
Thu8:30 am - 5:00 pm
Fri8:30 am - 5:00 pm
SatClosed
SunClosed

Applegarth Professional Center

2 Research WayMonroe Township, NJ 08831
Mon8:30 am - 5:00 pm
Tue8:30 am - 5:00 pm
Wed8:30 am - 5:00 pm
Thu8:30 am - 5:00 pm
Fri8:30 am - 5:00 pm
SatClosed
SunClosed

Compare with Similar Doctors

Dr. John Stanley Sierocki, MD
Penny Anderson
Eric M. Horwitz
Jessica Yang, MD
Dr. John Stanley Sierocki, MDPenny AndersonEric M. HorwitzJessica Yang, MD
OncologyOncologyOncologyOncology
Accepts New Patients Accepts New Patients Accepts New Patients Accepts New Patients
2.3 
53 Years of Experience 32 Years of Experience 34 Years of Experience 13 Years of Experience
No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option Virtual Visit Available
Speaks English, Chinese Speaks English, Mandarin
Princeton , NJPhiladelphia , PAPhiladelphia , PABasking Ridge , NJ
Med School: Hahnemann University School Of Medicine Med School: Lewis Katz School Of Medicine At Temple University Med School: Albany Medical College Med School: Johns Hopkins University School of Medicine
Current Profile
View Profile View Profile View Profile

Insurance Plans Accepted by Dr. John Stanley Sierocki

  • Accepts Medicare

Medical Specialties

Dr. John Stanley Sierocki has the following 2 specialties

Specialty Expertise

Dr. John Stanley Sierocki has the following 13 areas of expertise

  • Breast Cancer
  • Cancer
  • Cancerous Tumor
  • Chemotherapy
  • Colon Cancer
  • Colorectal Cancer
  • Internal Medicine
  • Interventional Oncology
  • Lung Cancer
  • Lymphoma
  • Metastasis
  • Multiple Myeloma (Cancer of Plasma Cells)
  • Prostate Cancer (Prostatic Neoplasm)

Certifications, License, & Education

53 Years Experience

Dr. John Stanley Sierocki holds an active medical license in the state of New Jersey.

Medical License

Medical Doctor with an active medical license in the state of New Jersey that expires in 2027.

Education & Training

Residency

Completed their residency at Hahnemann University Hospital.

Medical School

Graduated from Hahnemann University School Of Medicine in 1973.

NPI Number

Dr. Sierocki's NPI number is 1487792354.

Similar doctors

Frequently Asked Questions

How can I make an appointment with Dr. John Sierocki?
You can find contact information for Dr. John Sierocki here on Vitals.
Where is Dr. John Sierocki's office located?
Dr. John Sierocki's office is located at 419 N Harrison St, Princeton, NJ, 08540.
Does Dr. John Sierocki accept virtual/telehealth appointments?
Dr. John Sierocki has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
What languages does Dr. John Sierocki speak?
Dr. John Sierocki speaks English and Chinese.
Does Dr. John Sierocki accept my insurance?
You can see the insurance plans that Dr. John Sierocki accepts on their Vitals profile.

Ensuring Data Transparency and Trust: A Guide to Vitals Doctor Listings and Reviews

Our provider data is gathered directly from physicians and publicly available databases. Providers who verify their profiles gain the ability to update information, offering additional details about their specialties,education, treated conditions, performed procedures, and accepted insurances.

Reviews on Vitals are submitted by users only. Recognizing the valuable insights these reviews offer into a doctor's reputation, we maintain internal policies and protocols to ensure the quality and accuracy of all reviews. Importantly, providers cannot delete or alter reviews independently. Reviews can only be deleted or changed following an internal assessment by our customer service team.

Your feedback is highly valued and we encourage you to contact our support team should you encounter any issues.