Dr. Randall Lee Ahn
PHD, MLIS | Clinical Child & Adolescent Psychologist
16465 Sierra Lakes Pkwy Ste 140, Fontana
California, 92336-1242
909-244-9593 833-903-0337
Maps & DirectionsDr. Randall Lee Ahn is a Fontana, California based psychologist who is specialized in Clinical Child & Adolescent Psychology. Active license number of Dr. Randall Lee Ahn is PSY13956 for Clinical Child & Adolescent Psychology in California. His current practice location is 16465 Sierra Lakes Pkwy Ste 140, Fontana. Patients can reach him at 909-244-9593 or can fax him at 833-903-0337. Dr. Randall Lee Ahn is PHD, MLIS in Clinical Child & Adolescent Psychology and his NPI number (Unique professional ID assigned by NPPES) is 1093939399.
Dr. Randall Lee Ahn analyse the cognitive, social and emotional development of children. Typically, he look at development from the prenatal period through adolescence. Some of the traditional areas of interest include genetics, language development, learning disabilities, personality, gender roles, cognitive development, sexual development and social growth.
Clinical Child Psychologist responsibilities includes task like assessing and treating learning or developmental disabilities or delays; Working with children and their caregivers to manage behavioral issues; Administering psychological tests; Conducting scientific research on childhood development; Working with a health care team to create a unique treatment plan for a client.
Complete Profile:
Dr. Randall Lee Ahn speciality, credentials, practice address, contact phone number and fax are as below.
Patients can call on the below given phone number for appointment.
| Name: | Dr. Randall Lee Ahn |
| Specialization: | Clinical Child & Adolescent Psychology |
| Gender: | Male |
| Credentials: | PHD, MLIS |
| Practice Address: | 16465 Sierra Lakes Pkwy Ste 140, Fontana,
California, 92336-1242 |
| Phone: | 909-244-9593 |
| Fax: | 833-903-0337 |
Professional Identification Codes:
NPI number stands for National Provider Identifier which is a unique 10-digit identification number issued to health care providers in the United States by the Centers for Medicare and Medicaid Services (CMS).
NPI details are as mentioned below.
| NPI Number: | 1093939399 |
| NPI Enumeration Date: | 11 Apr, 2007 |
| NPI Last Update On: | 07 May, 2024 |
Medical Licenses:
Doctors can have one or more medical licenses for different specialities in the same state or different states. Related medical licenses for Dr. Randall Lee Ahn are as mentioned below.
| License Number | Specialization | State | Status | |
| PSY13956 | Clinical Child & Adolescent Psychology | California | Primary | |
Other Medical Identifiers:
Other legacy medical identifiers associated with Dr. Randall Lee Ahn such as Medicaid, Medicare PIN, NSC, UPIN etc. are mentioned as below.
| Identifier | Type | State | Issuer |
| PSY13956 | Other | California | PSYCHOLOGY LICENSE |
Business Mailing Address:
Business mailing address can be used for mailing purpose only, for visiting purpose patients need to refer above mentioned address.
| Address: | Dr. Randall Lee Ahn
241 E 17th St # 1029,
Costa Mesa, California |
| Zip: | 92627-3831 |
| Phone Number: | 949-414-7149 |
Patients can reach Dr. Randall Lee Ahn at
16465 Sierra Lakes Pkwy Ste 140, Fontana, California or can
call to book an appointment on 909-244-9593.
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Data of this site is collected from Medicare & Medicaid Services (CMS) and NPPES. Last updated on 08 December, 2025.