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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
    Tagalog, English

Primary Office

1514 Valley Vista Drive
Diamond Bar, CA 91765
(909) 860-1144
(909) 860-8307
Recommend this Physician
Featured Video
4.9 out of 5 (118 Ratings | 29 Comments)


Excellent care. Dr. Alejo listens attentively, seems to genuinely care, and explains well in an easy to understand manner.
Dr. Alejo is very caring and listens to us parents. We have pediatricians by but we will always follow him, so please don't go farther :)
Good routine visit. All my questions were answered and dialogue with my child's provider was respectful and informative.
Doctor Alejo was amazing. This was my child's first visit since birth and he was so informative and caring. We are very excited to continue care with him and making sure my son has the best doctor.
As a first time mom and also a new mom, I'm extremely glad that she has such a good doctor who not only takes his time explaining things but is also kind and compassionate and truly cares about what he does. Thank you Dr. A, you're awesome!
29 Total Comments Page 1 2 3 4 5 6   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 - 1987
  • Internship:
    St. John Hospital and Medical Center - 1993
  • Residency:
    UCLA Medical Center - 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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