KAREN MU
NPI 1306087424
Psychiatry & Neurology - Psychiatry in San Francisco, CA
About Karen Mu NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
KAREN MU (NPI 1306087424) is an individual psychiatry provider in San Francisco, California, licensed in California (A118163) and active in the NPI registry since March 2009. She is enrolled in Medicare PECOS and is a graduate of University Of California, Davis School Of Medicine (2010).
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
Karen Mu 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
4Medicare enrollment records show Karen Mu reassigns Medicare billing to 4 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
San Francisco, CA 94116
- Reassigned Medicare billing, California enrollment
- 1,573 clinicians in this Medicare group
Berkeley, CA 94704
- Reassigned Medicare billing, California enrollment
- 116 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 94143 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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 Karen Mu's NPI number?
The NPI number for Karen Mu is 1306087424. It was assigned to this individual provider in the NPPES registry on March 19, 2009.
Where is Karen Mu located?
Karen Mu practices at 401 Parnassus Ave Box-0984, San Francisco, CA 94143. The listed phone number is (415) 476-7527.
What is Karen Mu's specialty?
The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.
Is Karen Mu enrolled in Medicare?
Yes. Karen Mu 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 Karen Mu's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Karen Mu reassigns Medicare benefits to 4 organizations: University Of California San Francisco (San Francisco, CA), Ucsf Medical Group Business Services (San Francisco, CA), City & County Of San Francisco (San Francisco, CA) and Bay Psychiatric Associates (Berkeley, 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 Karen Mu'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 Karen Mu was last updated on November 15, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.
# Karen Mu · NPI 1306087424
Psychiatry physician in San Francisco, California. Individual provider, active in the CMS NPPES registry since March 19, 2009.
## Identity
- **NPI:** 1306087424 (Entity type: Individual)
- **Enumerated:** March 19, 2009
- **Primary specialty:** Psychiatry & Neurology - Psychiatry · taxonomy 2084P0800X
- **State license:** A118163 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 401 PARNASSUS AVE, BOX-0984, San Francisco, CA 94143-0984
- **Phone:** (415) 476-7527 · **Fax:** (415) 476-7722
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 4 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); City & County Of San Francisco (NPI 1528083300, San Francisco, CA); Bay Psychiatric Associates (NPI 1427163229, Berkeley, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of California, Davis School Of Medicine, class of 2010
## Record status
- **NPPES last updated:** November 15, 2012
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Source: [NPI Profile](https://npiprofile.com/npi/1306087424) · Data from the CMS NPPES public registry.