0 reviews
Summary
Dr. Marentis graduated from the Harvard Medical School,Harvard Medical School in 2008. He works in Carmichael, CA and 6 other locations and specializes in Nuclear Medicine, Diagnostic Radiology and Internal Medicine. Dr. Marentis is affiliated with Mercy San Juan Medical Center, Mercy General Hospital, Mercy Hospital Of Folsom, Mercy Medical Center Redding, Sierra Nevada Memorial Hospital, Methodist Hospital Of Sacramento and Woodland Memorial Hospital.
Quick Facts
- accepting new patients
- 18 years of experience
- University Of Michigan Health System
- 3 specialties
- 7 areas of expertise
- 7 hospital affiliations
- 7 office locations
- Male
Office Locations
Dr. Theodore Cosmo Marentis has 7 locationsDignity Health Advanced Imaging
3400 Data DrRancho Cordova, CA 95670Mon7:00 am - 6:00 pm
Tue7:00 am - 6:00 pm
Wed7:00 am - 6:00 pm
Thu7:00 am - 6:00 pm
Fri7:00 am - 6:00 pm
SatClosed
SunClosed
Compare with Similar Doctors
![]() | ![]() | ![]() | ![]() |
| Dr. Theodore Cosmo Marentis, MD | Robert Bruce Gardner | Aye A Khine-Hackett | Jessica Marie Nunez De Ybarra |
| Nuclear Medicine | Emergency Medicine | Diagnostic Radiology | Public Health & General Preventive Medicine |
| Accepts New Patients | |||
| 18 Years of Experience | 49 Years of Experience | 62 Years of Experience | 29 Years of Experience |
| No Virtual Visit Option | No Virtual Visit Option | No Virtual Visit Option | No Virtual Visit Option |
| Carmichael , CA | Roseville , CA | SACRAMENTO , CA | SACRAMENTO , CA |
| Med School: HARVARD MEDICAL SCHOOL | Med School: University Of California Irvine College Of Medicine | Med School: University Of Medicine | Med School: University Of California Davis School Of Medicine |
Current Profile | View Profile | View Profile | View Profile |
Insurance Plans Accepted by Dr. Theodore Cosmo Marentis
Be sure to verify insurance information directly with your doctor's office, as it may undergo frequent changes.
Medical Specialties
Dr. Theodore Cosmo Marentis has the following 3 specialties
Specialty Expertise
Dr. Theodore Cosmo Marentis has the following 7 areas of expertise
Certifications, License, & Education
18 Years Experience
Dr. Theodore Cosmo Marentis holds an expired medical license in the state of California.
Medical License
Medical Doctor with an expired medical license in the state of California that expired in 2026.
Education & Training
Residency
Completed their residency at University Of Michigan Health System.
Medical School
Graduated from HARVARD MEDICAL SCHOOL in 2009 and Harvard Medical School in 2008.
NPI Number
Dr. Marentis' NPI number is 1740424134.
Similar doctors
Frequently Asked Questions
- Which hospitals is Dr. Theodore Marentis affiliated with?
- Dr. Theodore Marentis is affiliated with Mercy San Juan Medical Center, Mercy General Hospital, Mercy Hospital Of Folsom, Mercy Medical Center Redding, Sierra Nevada Memorial Hospital, Methodist Hospital Of Sacramento, and Woodland Memorial Hospital.
- Where is Dr. Theodore Marentis's office located?
- Dr. Theodore Marentis's office is located at 6501 Coyle Ave, Carmichael, CA, 95608.
- Does Dr. Theodore Marentis accept virtual/telehealth appointments?
- Dr. Theodore Marentis has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
- Does Dr. Theodore Marentis accept my insurance?
- You can see the insurance plans that Dr. Theodore Marentis accepts on their Vitals profile.
- Is Dr. Theodore Marentis accepting new patients?
- Dr. Theodore Marentis is accepting new patients on Vitals. View Dr. Theodore Marentis's profile on Vitals to make an appointment.
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.

