What is Yen Du's NPI number?

Yen Du's National Provider Identifier (NPI) is 1639425655, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Yen Du's specialty?

Yen Du is listed in the NPPES registry with a primary specialty of Marriage & Family Therapist (Behavioral Health & Social Service Providers).

Where is Yen Du located?

Yen Du's practice location on file with NPPES is 3420 Kenyon Street, San Diego, CA 92110.

What is Yen Du's phone number?

The practice phone number listed in the NPPES registry for Yen Du is (833) 574-2273.

Does Yen Du accept Medicare?

Yen Du is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.

Is Yen Du's NPI active?

Yes — Yen Du's NPI (1639425655) is active in the NPPES registry as of the last update on 2021-05-20.

IndividualActiveAccepts Medicare

Yen Du

NPI 1639425655 · Marriage & Family Therapist · San Diego, CA

Enrolled with Medicare as Practitioner - Marriage and Family Therapist · source: CMS PECOS Public Provider Enrollment (2026.04.01)

Yen Du is a Marriage & Family Therapist provider in San Diego, CA (NPI 1639425655).

Provider details

NPI number: 1639425655
Entity type: Individual
Primary specialty: Marriage & Family TherapistBehavioral Health & Social Service Providers
Sex: Female
Sole proprietor: Yes
License: 102276 (CA)

Specialties & taxonomies

Marriage & Family TherapistPrimary106H00000XLicense 102276 (CA)
Behavioral Health & Social Service Providers

Profile Score

Detailed profile(88/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
13 yrs in NPPES registry
Profile completeness38% of score
100% of core fields populated
Practice footprint23% of score
3 documented practice locations

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

3420 Kenyon Street

Build B, 2nd Floor

San Diego, CA 92110

Phone: (833) 574-2273

Street-level locationGet directions

More CA providers

Mailing address

3420 Kenyon Street

San Diego, CA 92110

Additional practice locations (2)

1465 30th St
Suite K
San Diego, CA 92154-3497
Phone: (619) 428-1000
Fax: (619) 428-4091
1031 25th St
San Diego, CA 92102-2102
Phone: (619) 232-6454

Enumerated: 2012-07-27
Last updated: 2021-05-20
Certified: 2021-05-03

Frequently asked questions

What is Yen Du's NPI number?: Yen Du's National Provider Identifier (NPI) is 1639425655, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Yen Du's specialty?: Yen Du is listed in the NPPES registry with a primary specialty of Marriage & Family Therapist (Behavioral Health & Social Service Providers).
Where is Yen Du located?: Yen Du's practice location on file with NPPES is 3420 Kenyon Street, San Diego, CA 92110.
What is Yen Du's phone number?: The practice phone number listed in the NPPES registry for Yen Du is (833) 574-2273.
Does Yen Du accept Medicare?: Yen Du is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
Is Yen Du's NPI active?: Yes — Yen Du's NPI (1639425655) is active in the NPPES registry as of the last update on 2021-05-20.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.