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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).

Learn more about Dr. Conrad Castellino:

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  1. Qualifications
  2. What's important to you

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Patient Reviews

Patient comments (5)

The overall average patient rating of Dr. Conrad Castellino is Good. Dr. Castellino has been reviewed by 13 patients who have provided 5 comments. The rating is 3.5 out of 5 stars.

Patient Ratings
Ease of Appointment 5.0
Promptness 4.7
Courteous Staff 5.0
Accurate Diagnosis 4.5
Bedside Manner 4.7
Spends Time with Me 4.2
Follows Up After Visit 4.2

Education & Awards

Dr. Castellino graduated from Dow Medical College, Karachi. He has 1 awards.

Compassionate Doctor Recognition (2012)


Dr. Castellino has 3 hospital affiliations:

  • Mercy Medical Center, Merced - Community Campus 
  • John C Fremont Hospital 
  • Mercy Medical Center Merced 


  • Italian
  • Urdu
  • Hindi
  • Spanish
  • English

> > > > Dr. Conrad Castellino, MD

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Additional Information
Dr. Conrad Joachim Castellino MD is a male Internist, has 25 years of experience and practices in Internal Medicine.
Where does Dr. Conrad J. Castellino practice?
Dr. Conrad Castellino has 4 office locations.
Dr. Conrad Castellino practices Internal Medicine near Merced, CA.
Additional practice locations include: Atwater, CA and Turlock, CA.
See Merced Internists.