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Maria C. Castillo-Catoni, MD

Inova Medical Group

Board Certified Specialty: Internal Medicine

Clinical Interest: Internal Medicine, Diabetes, Hypertension (High Blood Pressure)

Accepting new patients for: Internal Medicine

Gender: Female

Languages: English, Spanish

Physician Group

Inova Medical Group - Mark Center

Hospital Affiliations


Dr. Castillo-Catoni is a primary care physician board certified in internal medicine. She comes to Inova Medical Group after serving as chief resident at Virginia Commonwealth University Hospital. She has a special interest in management of diabetes, geriatric medicine, women’s health, and preventive medicine.

For as long as she can remember, Dr. Castillo-Catoni has felt a calling to community service along with a desire to study and manage disease. Internal medicine was a natural fit for the native of San Juan, Puerto Rico. Her focus as a primary care provider is on optimizing each patient’s healthcare experience. She believes that establishing trust-based relationships and providing counseling and support to her patients and their family members is the first step to creating an ideal wellness plan at any stage in life.

Dr. Castillo-Catoni currently resides in Arlington, Virginia. In her spare time, she enjoys listening to music, baking, running, and spending time with her family.


Medical Education:

  • University of Puerto Rico School of Medicine 2008

Board Certification:

  • Internal Medicine


  • VCU Internal Medicine

Areas of Interest

  • Internal Medicine
  • Diabetes
  • Hypertension (High Blood Pressure)
Disclosure Statement for Online Physician Referral Service

Thank you for accessing the Inova Physician Referral Service. Please make note of the following information.

This referral service is sponsored by Inova. Only physicians with appropriate medical staff privileges at an Inova affiliated hospital may participate. There is no charge or fee to you or for the participating physician for our service. Physician participation is voluntary.

Physician referrals will be based on your referral needs and preferences of location, specialty, and rotation availability of the physician.

The physicians on our referral panel are independent practitioners or physician employees. The independent practitioners are not employees, agents or representatives of Inova and are solely responsible for their provision of medical care to you.