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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 (18)

The overall average patient rating of Dr. Lloyd Costello is Good. Dr. Costello has been reviewed by 82 patients who have provided 18 comments. The rating is 4 out of 5 stars.

Patient Ratings
Ease of Appointment 4.0
Promptness 4.0
Courteous Staff 3.9
Accurate Diagnosis 4.3
Bedside Manner 5.0
Spends Time with Me 4.6
Follows Up After Visit 4.0

Specialties & Research

Dr. Lloyd Costello, MD is board certified in Family Medicine.

  • He has special expertise in 1 area:
  • Holistic Health

Education & Awards

Dr. Costello graduated from University of California at Davis. He has 3 awards.

Patients' Choice Award (2010 - 2013)
Compassionate Doctor Recognition (2010 - 2013)
Top 10 Doctor - City (2014)
Pomona, CA
Family Practitioner


Dr. Costello has 9 hospital affiliations:

  • Glendale Adventist Medical Center/Adventist Health 
  • Glendale Memorial Hospital and Health Center 


  • Spanish
  • English

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Additional Information
Dr. Lloyd Costello MD is a male Family Practitioner, has 28 years of experience and practices in Family Medicine.
Where does Dr. Lloyd Costello practice?
Dr. Lloyd Costello has 2 office locations.
Dr. Lloyd Costello practices Family Medicine near Pomona, CA.
Additional practice locations include: Montrose, CA.
See Pomona Primary Care Doctors.