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License & Identifications

A medical license is required for a doctor to practice medicine in a particular state. Requirements vary by state but most require, at a minimum, post-graduate training in the doctor’s specific specialty. An NPI number is a national identifier unique to an individual health care provider and is managed by the Center for Medicare & Medicaid Services (CMS).

Patient Reviews

Patient comments (4)

The overall average patient rating of Dr. Renato Mascardo is Excellent. Dr. Mascardo has been reviewed by 11 patients who have provided 4 comments. The rating is 4.5 out of 5 stars.

Patient Ratings
Ease of Appointment 4.2
Promptness 4.7
Courteous Staff 4.8
Accurate Diagnosis 4.7
Bedside Manner 4.5
Spends Time with Me 4.5
Follows Up After Visit 4.7

Specialties & Research

Dr. Renato Mascardo, MD, PC is board certified in Internal Medicine.

  • He has special expertise in 7 areas:
  • Adrenal Gland Diseases
  • Lipid Metabolism Disorders
  • Metabolic Bone Diseases
  • Osteoporosis
  • Parathyroid Diseases
  • Pituitary Diseases
  • Thyroid Diseases

Education & Awards

Dr. Mascardo graduated from University Of The Philippines Manila. He has 3 awards.

Patients' Choice Award (2010 - 2012, 2014)
Compassionate Doctor Recognition (2012)
On-Time Doctor Award (2014)


Dr. Mascardo has 14 hospital affiliations:

  • Danbury Hospital 
  • St Francis Hospital & Medical Center 


  • Tagalog

> > > > Dr. Renato Mascardo, MD, PC

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Additional Information
Dr. Renato N Mascardo MD and PC is a male Internist, has 39 years of experience and practices in Internal Medicine.
Where does Dr. Renato N. Mascardo practice?
Dr. Renato Mascardo has 3 office locations.
Dr. Renato Mascardo practices Internal Medicine near Ridgefield, CT.
Additional practice locations include: Sharon, CT and Danbury, CT.
See Ridgefield Internists.