0 reviews
Summary
Dr. Kassandra Sierra Martinez practices family medicine in San Juan, Puerto Rico. She earned her medical degree from the University of Puerto Rico School of Medicine and has 19 years of experience.
Overview based on verified provider data
Quick Facts
- 19 years of experience
- 1 insurance plan accepted
- University Of Puerto Rico School Of Medicine
- 1 specialty
- 1 office location
- Female
Office Location
Compare with Similar Doctors
![]() | ![]() | ![]() | ![]() |
| Dr. Kassandra Sierra Martinez | Dr. Michael Gray, MD | Miguel Angel Hernandez Dapena | Luis Alberto Leon Matheu |
| Family Medicine | Family Medicine | Physical Medicine & Rehabilitation | Pediatrics |
| Accepts New Patients | |||
| 19 Years of Experience | 31 Years of Experience | 67 Years of Experience | 48 Years of Experience |
| No Virtual Visit Option | Virtual Visit Available | No Virtual Visit Option | No Virtual Visit Option |
| Speaks English | |||
| San Juan , PR | Annapolis , MD | Rio Grande , PR | Rio Piedras , PR |
| Med School: University Of Puerto Rico School Of Medicine | Med School: University Of Maryland School Of Medicine | Med School: Universidad Complutense De Madrid Facultad De Medicina | Med School: University Of Puerto Rico School Of Medicine |
Current Profile | View Profile | View Profile | View Profile |
Insurance Plans Accepted by Dr. Kassandra Sierra Martinez
Medical Specialties
Dr. Kassandra Sierra Martinez has the following specialty
Certifications, License, & Education
19 Years Experience
Dr. Kassandra Sierra Martinez holds an active medical license in the state of Puerto Rico.
Medical License
Medical Doctor with an active medical license in the state of Puerto Rico.
Education & Training
Medical School
Graduated from University Of Puerto Rico School Of Medicine in 2007.
NPI Number
Dr. Sierra Martinez's NPI number is 1093902462.
Similar Doctors
Frequently Asked Questions
- Does Dr. Kassandra Sierra Martinez accept my insurance?
- You can see the insurance plans that Dr. Kassandra Sierra Martinez accepts on their Vitals profile.
- How can I make an appointment with Dr. Kassandra Sierra Martinez?
- You can find contact information for Dr. Kassandra Sierra Martinez here on Vitals.
- Does Dr. Kassandra Sierra Martinez accept virtual/telehealth appointments?
- Dr. Kassandra Sierra Martinez has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
- Is Dr. Kassandra Sierra Martinez accepting new patients?
- Dr. Kassandra Sierra Martinez has not indicated that they accept new patients. Contact their office through their Vitals profile to check for availability.
- Where is Dr. Kassandra Sierra Martinez's office located?
- Dr. Kassandra Sierra Martinez's office is located at 862 Ave San Patricio, San Juan, PR, 00921.
Data Sources
This provider profile is built using data from:
- NPPES NPI Registry
- State medical licensing boards
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.


