MS. WEN ONG
NPI 1548331002
Marriage & Family Therapist in San Francisco, CA
About Ms. Wen Ong NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MS. WEN ONG (NPI 1548331002) is an individual marriage & family therapist in San Francisco, California, licensed in California (46733) and active in the NPI registry since November 2006. She is enrolled in Medicare PECOS and is a graduate of Other (2004).
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 and accepts Medicare assignment
Ms. Wen Ong is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
2Medicare enrollment records show Wen Ong reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
San Francisco, CA 94143
- Reassigned Medicare billing, California enrollment
- 5,645 clinicians in this Medicare group
San Francisco, CA 94122
- Reassigned Medicare billing, California enrollment
- 5,544 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.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SAN FRANCISCO, CA 94143
SAN FRANCISCO, CA 94143
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 Wen Ong's NPI number?
The NPI number for Wen Ong is 1548331002. It was assigned to this individual provider in the NPPES registry on November 13, 2006.
Where is Wen Ong located?
Wen Ong practices at 401 Parnassus Ave, San Francisco, CA 94143. The listed phone number is (415) 476-7095.
What is Wen Ong's specialty?
The primary specialty registered for this NPI is Marriage & Family Therapist with taxonomy code 106H00000X.
Is Wen Ong enrolled in Medicare?
Yes. Wen Ong is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Wen Ong's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Wen Ong reassigns Medicare benefits to 2 organizations: University Of California San Francisco (San Francisco, CA) and Ucsf Medical Group Business Services (San Francisco, CA). Each 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 Wen Ong'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 Wen Ong was last updated on November 27, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.
# Ms. Wen Ong · NPI 1548331002
Marriage & Family Therapist provider in San Francisco, California. Individual provider, active in the CMS NPPES registry since November 13, 2006.
## Identity
- **NPI:** 1548331002 (Entity type: Individual)
- **Enumerated:** November 13, 2006
- **Primary specialty:** Marriage & Family Therapist · taxonomy 106H00000X
- **State license:** 46733 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 401 PARNASSUS AVE, San Francisco, CA 94143-2211
- **Phone:** (415) 476-7095
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): University Of California San Francisco (NPI 1346329380, San Francisco, CA); Ucsf Medical Group Business Services (NPI 1477624104, San Francisco, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2004
## Record status
- **NPPES last updated:** November 27, 2010
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Source: [NPI Profile](https://npiprofile.com/npi/1548331002) · Data from the CMS NPPES public registry.