YUEN SIN LARISSA TAM
NPI 1316509748
Counselor - Mental Health in San Francisco, CA
About Yuen Sin Larissa Tam NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
YUEN SIN LARISSA TAM (NPI 1316509748) is an individual mental health provider in San Francisco, California and active in the NPI registry since July 2019. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Yuen Sin Larissa Tam is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Yuen Sin Larissa Tam reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
San Jose, CA 95113
- Reassigned Medicare billing, California enrollment
- 3,139 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Other Providers at the Same Location NPPES 14
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Yuen Sin Larissa Tam's NPI number?
The NPI number for Yuen Sin Larissa Tam is 1316509748. It was assigned to this individual provider in the NPPES registry on July 6, 2019.
Where is Yuen Sin Larissa Tam located?
Yuen Sin Larissa Tam practices at 4020 Balboa St, San Francisco, CA 94121. The listed phone number is (415) 668-5998.
What is Yuen Sin Larissa Tam's specialty?
The primary specialty registered for this NPI is Counselor, specializing in Mental Health, with taxonomy code 101YM0800X.
Is Yuen Sin Larissa Tam enrolled in Medicare?
Yes. Yuen Sin Larissa Tam is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Yuen Sin Larissa Tam's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Yuen Sin Larissa Tam reassigns Medicare benefits to Grow Healthcare Group PC (San Jose, CA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Yuen Sin Larissa Tam's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Yuen Sin Larissa Tam was last updated on July 6, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Yuen Sin Larissa Tam · NPI 1316509748
Mental Health provider in San Francisco, California. Individual provider, active in the CMS NPPES registry since July 6, 2019.
## Identity
- **NPI:** 1316509748 (Entity type: Individual)
- **Enumerated:** July 6, 2019
- **Primary specialty:** Counselor - Mental Health · taxonomy 101YM0800X
- **Sole proprietor:** No
## Practice location
- **Address:** 4020 BALBOA ST, San Francisco, CA 94121-2569
- **Phone:** (415) 668-5998
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment
- **Bills Medicare through:** Grow Healthcare Group PC (NPI 1154994846, San Jose, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** July 6, 2019
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Source: [NPI Profile](https://npiprofile.com/npi/1316509748) · Data from the CMS NPPES public registry.