Timothy Yen, Psy.d., a Professional Psychology Corp
NPI 1902772759 · Clinical Psychologist · Walnut Creek, CA
Timothy Yen, Psy.d., a Professional Psychology Corp is a Clinical Psychologist organization in Walnut Creek, CA (NPI 1902772759).
Provider details
- NPI number
- 1902772759
- Entity type
- Organization
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Organization subpart
- No
- Authorized official
- Timothy Yen, Owner/Ceo(714) 726-5051
Specialties & taxonomies
Behavioral Health & Social Service Providers
- Registered Dietitian133V00000X
Dietary & Nutritional Service Providers
- Psychiatry Physician2084P0800X
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
Under 1 yr in registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2025-10-16
- Last updated
- 2025-10-16
- Certified
- 2025-10-16
Frequently asked questions
- What is Timothy Yen, Psy.d., a Professional Psychology Corp's NPI number?
- Timothy Yen, Psy.d., a Professional Psychology Corp's National Provider Identifier (NPI) is 1902772759, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Timothy Yen, Psy.d., a Professional Psychology Corp?
- Timothy Yen, Psy.d., a Professional Psychology Corp is classified in the NPPES registry as Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Timothy Yen, Psy.d., a Professional Psychology Corp located?
- Timothy Yen, Psy.d., a Professional Psychology Corp's practice location on file with NPPES is 1460 Maria Ln Ste 310, Walnut Creek, CA 94596-8803.
- What is Timothy Yen, Psy.d., a Professional Psychology Corp's phone number?
- The practice phone number listed in the NPPES registry for Timothy Yen, Psy.d., a Professional Psychology Corp is (925) 385-8228.
- Who is the authorized official for Timothy Yen, Psy.d., a Professional Psychology Corp?
- The authorized official listed on Timothy Yen, Psy.d., a Professional Psychology Corp's NPPES record is Timothy Yen, Owner/Ceo. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Timothy Yen, Psy.d., a Professional Psychology Corp's NPI active?
- Yes — Timothy Yen, Psy.d., a Professional Psychology Corp's NPI (1902772759) is active in the NPPES registry as of the last update on 2025-10-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.