0 reviews
Summary
Dr. John Frenster specializes in internal medicine and oncology. They provide comprehensive care for adults with a focus on cancer treatment and blood disorders. Dr. Frenster holds an MD degree, bringing medical expertise to patient care.
Dr. Frenster practices in Atherton, California. They work with patients who have various health concerns, offering both primary care services and specialized cancer treatment. Their dual specialty allows them to provide coordinated care for patients with complex medical needs.
Dr. Frenster practices in Atherton, California. They work with patients who have various health concerns, offering both primary care services and specialized cancer treatment. Their dual specialty allows them to provide coordinated care for patients with complex medical needs.
AI-generated from data on this provider profile.
Quick Facts
- 2 specialties
- 1 area of expertise
- 2 board certifications
- 1 office location
Office Location
Compare with Similar Doctors
![]() | ![]() | ![]() | ![]() |
| Dr. John Henry Frenster, MD | Dr. Nima Ghadimi, MD | Dr. George Mousa, MD | Dr. Shilpa Sayana, MD |
| Internal Medicine | Internal Medicine | Internal Medicine | Internal Medicine |
| Accepts New Patients | Accepts New Patients | Accepts New Patients | |
| 29 Years of Experience | 17 Years of Experience | 22 Years of Experience | |
| No Virtual Visit Option | Virtual Visit Available | Virtual Visit Available | Virtual Visit Available |
| Speaks English, Spanish | Speaks English | ||
| Atherton , CA | Scottsdale , AZ | Upland , CA | SHERMAN OAKS , CA |
| Med School: Univ Iberoamericana Unibe Santo Domingo | Med School: University Of Aleppo Faculty Of Medicine | Med School: The Robert Larner Md College Of Medicine At The University Of Vermont | |
Current Profile | View Profile | View Profile | View Profile |
Insurance Plans Accepted by Dr. John Henry Frenster
Be sure to verify insurance information directly with your doctor's office, as it may undergo frequent changes.
Medical Specialties
Dr. John Henry Frenster has the following 2 specialties
Specialty Expertise
Dr. John Henry Frenster has the following area of expertise
Similar doctors
Frequently Asked Questions
- Is Dr. John Frenster accepting new patients?
- Dr. John Frenster has not indicated that they accept new patients. Contact their office through their Vitals profile to check for availability.
- Does Dr. John Frenster accept my insurance?
- You can see the insurance plans that Dr. John Frenster accepts on their Vitals profile.
- Where is Dr. John Frenster's office located?
- Dr. John Frenster's office is located at 247 Stockbridge Ave, Atherton, CA, 94027.
- Does Dr. John Frenster accept virtual/telehealth appointments?
- Dr. John Frenster has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
- How can I make an appointment with Dr. John Frenster?
- You can find contact information for Dr. John Frenster here on Vitals.
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.





