DR. SAN TAT MD MPH
NPI 1194959825
Pediatrics in San Francisco, CA
About Dr. San Tat Md Mph NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. SAN TAT MD MPH (NPI 1194959825) is an individual pediatrics provider in San Francisco, California, licensed in California (A107257) and active in the NPI registry since May 2009. He is enrolled in Medicare PECOS and maintains a secondary practice location in San Francisco.
NPPES Registry Identity
Specialties & Licenses 2
Other Names 1
Secondary Practice Location 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. San Tat Md Mph is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
4Medicare enrollment records show San Tat 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
- 1,159 clinicians in this Medicare group
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 94110
- Reassigned Medicare billing, California enrollment
- 842 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.
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 San Tat's NPI number?
The NPI number for San Tat is 1194959825. It was assigned to this individual provider in the NPPES registry on May 9, 2009. The provider is also known as Dr. Sonny Tat MD Mph.
Where is San Tat located?
San Tat practices at Department Of Pediatrics M691 505 Parnassus Ave, San Francisco, CA 94143. The listed phone number is (415) 476-5001.
What is San Tat's specialty?
The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.
Is San Tat enrolled in Medicare?
Yes. San Tat is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for San Tat's services?
According to the CMS Revalidation Reassignment List (October 2026 release), San Tat reassigns Medicare benefits to 4 organizations: Ucsf Pediatrics Associates (San Francisco, CA), University Of California San Francisco (San Francisco, CA), Ucsf Medical Group Business Services (San Francisco, CA) and University Of California Sfgh Medical Group (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 San Tat'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 San Tat was last updated on May 11, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 months 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.
# Dr. San Tat, MD MPH · NPI 1194959825
Pediatrics physician in San Francisco, California. Individual provider, active in the CMS NPPES registry since May 9, 2009.
## Identity
- **NPI:** 1194959825 (Entity type: Individual)
- **Enumerated:** May 9, 2009
- **Primary specialty:** Pediatrics · taxonomy 208000000X
- **State license:** A107257 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** DEPARTMENT OF PEDIATRICS M691, 505 PARNASSUS AVE, San Francisco, CA 94143-0001
- **Phone:** (415) 476-5001
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **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): Ucsf Pediatrics Associates (NPI 1376614016, San Francisco, CA); University Of California San Francisco (NPI 1346329380, San Francisco, CA); Ucsf Medical Group Business Services (NPI 1477624104, San Francisco, CA); University Of California Sfgh Medical Group (NPI 1174598296, San Francisco, CA) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** May 11, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1194959825) · Data from the CMS NPPES public registry.