5
1 Rating
Summary
Dr. Jonnel Constantino treats heart failure, chronic kidney disease stage 5, and chronic kidney disease, and has practiced internal medicine, hospital medicine, and pathology for 27 years. He also performs comprehensive metabolic panels and diabetic nephropathy screening.
Dr. Constantino earned his medical degree from the University of the East/Ramon Magsaysay Memorial Medical Center College of Medicine and sees patients at UCI Medical Center, Kaiser Foundation Hospital, Saint Joseph Hospital Orange, and Chapman Medical Center Inc, located in Fontana and Orange, California. Patients on Vitals rate Dr. Constantino 5 out of 5.
Dr. Constantino earned his medical degree from the University of the East/Ramon Magsaysay Memorial Medical Center College of Medicine and sees patients at UCI Medical Center, Kaiser Foundation Hospital, Saint Joseph Hospital Orange, and Chapman Medical Center Inc, located in Fontana and Orange, California. Patients on Vitals rate Dr. Constantino 5 out of 5.
Overview based on verified provider data
Quick Facts
- 27 years of experience
- speaks English
- Univ Of The East/Ramon Magsaysay Memorial Medical Center College Of Med
- 3 specialties
- 4 areas of expertise
- 4 hospital affiliations
- 4 office locations
- Male
Patients’ Perspective
- Gave an accurate diagnosis
- Had a good bedside manner
- Spent time with me
Based on patient feedback. Read the reviews
Office Locations
Dr. Jonnel Ramos Constantino has 4 locationsCompare with Similar Doctors
 |  |  |  |
| Dr. Jonnel Ramos Constantino | Dr. Argenis Curiel, MD | Karthikeyan Viswanathan, DO | Dr. Adewumi Bakare DMSc, PA-C |
| Internal Medicine | Internal Medicine | Internal Medicine | Internal Medicine |
| Accepts New Patients | Accepts New Patients | Accepts New Patients | |
| 27 Years of Experience | 8 Years of Experience | 12 Years of Experience | |
| No Virtual Visit Option | Virtual Visit Available | Virtual Visit Available | Virtual Visit Available |
| Speaks English | Speaks English, Spanish | Speaks English, Tamil | Speaks English, Spanish, Yoruba, French, Russian, Arabic, Chinese, Chinese (Mandarin) |
| Fontana , CA | Fresno , CA | Palo Alto , CA | Mesquite , TX |
| Med School: Univ Of The East/Ramon Magsaysay Memorial Medical Center College Of Med | Med School: Universidad Autonoma De Guadalajara Facultad De Medicina | Med School: Bassett Medical Center - Cooperstown, New York | Med School: University of Lynchburg - DMSc |
Current Profile | View Profile | View Profile | View Profile |
Insurance Plans Accepted by Dr. Jonnel Ramos Constantino
Be sure to verify insurance information directly with your doctor's office, as it may undergo frequent changes.
Medical Specialties
Dr. Jonnel Ramos Constantino has the following 3 specialties
Specialty Expertise
Dr. Jonnel Ramos Constantino has the following 4 areas of expertise
Certifications, License, & Education
27 Years Experience
Dr. Jonnel Ramos Constantino holds an active medical license in the state of California.
Medical License
Medical Doctor with an active medical license in the state of California that expires in 2026.
Education & Training
Medical School
Graduated from Univ Of The East/Ramon Magsaysay Memorial Medical Center College Of Med in 1999.
NPI Number
Dr. Constantino's NPI number is 1124246350.
Similar Doctors
Frequently Asked Questions
- Does Dr. Jonnel Constantino accept my insurance?
- You can see the insurance plans that Dr. Jonnel Constantino accepts on their Vitals profile.
- Where is Dr. Jonnel Constantino's office located?
- Dr. Jonnel Constantino's office is located at 9961 Sierra Ave, Fontana, CA, 92335.
- What languages does Dr. Jonnel Constantino speak?
- Dr. Jonnel Constantino speaks English.
- Is Dr. Jonnel Constantino accepting new patients?
- Dr. Jonnel Constantino has not indicated that they accept new patients. Contact their office through their Vitals profile to check for availability.
- Which hospitals is Dr. Jonnel Constantino affiliated with?
- Dr. Jonnel Constantino is affiliated with Uci Medical Center, Kaiser Foundation Hospital, Saint Joseph Hospital Orange, and Chapman Medical Center Inc.
Data Sources
This provider profile is built using data from:
- NPPES NPI Registry
- State medical licensing boards
- Healthcare system and provider network data
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.
