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Wilfredo Alejo, MD
Practice accepting new patients.

Wilfredo Alejo, MD

(909) 860-1144
Primary Specialties
  • Pediatrics
    (Board Certified)
Medical Groups & Affiliations
  • St. Jude Heritage Medical Group
  • Additional Languages Spoken

Primary Office

1514 S. Valley Vista Dr.
Diamond Bar, CA 91765
(909) 860-1144
(909) 860-8307

Secondary Office

(909) 860-1144
(909) 860-8307
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4.8 out of 5 (98 Ratings | 11 Comments)


*Dr. Alejo is so kind, friendly & thorough. He always answers my questions & concerns. He always reminds me additional care & precautions for my son. I feel like he really cares about my son.
The only thing I have to say about my experience, which was very, very good, is that it bothered me a little that the doctor was not wearing gloves when inspecting my genitals. I found that weird.
I'm very glad doctor Alejo is taking care of my kids
Dr Alejo, is an exceptional doctor. He has a way on how to connect with kids to make them comfortable.
*Dr. Alejo, continue to go above and beyond the expectation as a medical doctor, he works well with kids and shares valuable information with parents.
11 Total Comments Page 1 2 3   Next

Physician Bio

There is nothing more important to me than the health and safety of your children. As a strong advocate of vaccinations, I believe that ensuring the children who visit our office are fully vaccinated is the single most important thing I can do to keep your children and your community safe. If you choose not to fully vaccinate your child, another physician may be a better fit for your family. If you have questions or would like more information on vaccinations, call our office at (909) 860-1144.


  • Medical School:
    Far Eastern University , Manilla, Phillippines - 1987
  • Internship:
    St. John Hospital and Medical Center - Detroit, MI - 1993
  • Residency:
    UCLA Medical Center - Los Angeles, CA - 1995
  • Board Certified in Pediatrics


  • American Academy of Pediatrics

Areas of Interest

  • Acne
  • Adolescent Health
  • Asthma
  • Newborn Care
  • Vaccinations
  • Newborn and Adolescent Health
  • Physical Exams
  • Epstein Barr Virus (Herpes)

Insurance ID Numbers

Aetna: *373082
Blue Cross: *0RD192
Blue Shield: 00A526291
CIGNA: 7665854014
CIGNA Select: 7665854017
Health Net: 3205079220
Health Net Senior: n/a
SCAN: n/a
United Healthcare: *0183420126

*Provider ID is the same for both HMO and Medicare Advantage Plans

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