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Internist, Geriatric Specialist (elderly care)
34 years of experience
Accepting new patients
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 (2)

The overall average patient rating of Dr. Ronald Mera is Excellent. Dr. Mera has been reviewed by 12 patients who have provided 2 comments. The rating is 4.5 out of 5 stars.

Patient Ratings
Ease of Appointment 4.6
Promptness 4.5
Courteous Staff 4.8
Accurate Diagnosis 4.8
Bedside Manner 4.8
Spends Time with Me 5.0
Follows Up After Visit 4.6

Specialties & Research

Dr. Ronald Mera, MD is board certified in Internal Medicine and Geriatric Medicine.

  • He has special expertise in 3 areas:
  • Alzheimer's Disease
  • Weight Loss
  • Weight loss (non-surgical)

Education & Awards

Dr. Mera graduated from Universidad Nacional Mayor De San Marcos, Lima. He has 3 awards.

Patients' Choice Award (2015)
Compassionate Doctor Recognition (2014)
On-Time Doctor Award (2015)


Dr. Mera has 1 hospital affiliations:

  • St Lukes Hospital 


  • Spanish

> > > > Dr. Ronald Mera, MD

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Additional Information
Dr. Ronald L Mera MD is a male Internist, has 34 years of experience and practices in Internal Medicine and Geriatric Medicine.
Where does Dr. Ronald L. Mera practice?
Dr. Ronald Mera has 1 office location.
Dr. Ronald Mera practices Internal Medicine and Geriatric Medicine near Chesterfield, MO.
See Chesterfield Internists and Chesterfield Geriatric Doctors.