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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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4.9 out of 5 (70 Ratings | 8 Comments)


Very specific on what he/she had to say.
*Dr. Alejo is a wonderful doctor!
Dr. Alejo is wonderful. He was very friendly and put us at ease right away.
We love Dr.Alejo! He always explains every vaccine with detail and answers all my questions, thank you!
Dr. Alejo has been great with our children showed concern and respect. He explained everything clearly and answered all our questions without rushing us out of his office.
8 Total Comments Page 1 2   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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