Eugene Chien is a Rancho Cucamonga, California based counselor who is specialized as Professional Counselor. Active license number of Eugene Chien is 7991 for Professional Counselor in California. His current practice location is 9390 Base Line Rd, Rancho Cucamonga. Patients can book an appointment with him at 909-484-5151.
Eugene Chien is a licensed mental health practitioner trained to help individuals, couples, and groups address emotional, psychological, and behavioral challenges. He uses talk therapy and evidence-based counseling methods to support clients in managing mental health conditions, improving relationships, and developing coping strategies for life’s difficulties.
Complete Profile:
Eugene Chien speciality, credentials, practice address, contact phone number and fax are as below.
Patients can directly walk in or can call on the below given phone number for appointment.
| Name: | Eugene Chien |
| Specialization: | Professional Counselor |
| Gender: | Male |
| Accepts Medicare Assignment: | No |
| Practice Address: | 9390 Base Line Rd, Rancho Cucamonga,
California, 91701-5839 |
| Phone: | 909-484-5151 |
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: | 1821414590 |
| NPI Enumeration Date: | 05 Mar, 2014 |
| NPI Last Update On: | 29 Jan, 2026 |
Medical Licenses:
Doctors can have one or more medical licenses for different specialities in the same state or different states. Related medical licenses for Eugene Chien are as mentioned below.
| License Number | Specialization | State | Status | |
| 7991 | Professional Counselor | California | Primary | |
Business Mailing Address:
Business mailing address can be used for mailing purpose only, for visiting purpose patients need to refer above mentioned address.
| Address: | 9390 Base Line Rd,
Rancho Cucamonga, California |
| Zip: | 91701-5839 |
| Phone Number: | 909-484-5151 |
Patients can reach Eugene Chien at
9390 Base Line Rd, Rancho Cucamonga, California or can
call to book an appointment on 909-484-5151.
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Data of this site is collected from Medicare & Medicaid Services (CMS) and NPPES. Last updated on 09 February, 2026.