DR. JEFFREY TSENG M.D.
NPI 1205990868
Otolaryngology in Thousand Oaks, CA
About Dr. Jeffrey Tseng M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JEFFREY TSENG M.D. (NPI 1205990868) is an individual otolaryngology provider in Thousand Oaks, California, licensed in California (A101924) and active in the NPI registry since December 2006. He is enrolled in Medicare PECOS and is a graduate of Medical College Of Wisconsin (2003).
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)
Dr. Jeffrey Tseng M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Jeffrey Tseng reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Thousand Oaks, CA 91360
- Reassigned Medicare billing, California enrollment
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 10
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 91360 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.
THOUSAND OAKS, CA 91360
THOUSAND OAKS, CA 91360
THOUSAND OAKS, CA 91360
THOUSAND OAKS, CA 91360
THOUSAND OAKS, CA 91360
THOUSAND OAKS, CA 91360
THOUSAND OAKS, CA 91360
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 Jeffrey Tseng's NPI number?
The NPI number for Jeffrey Tseng is 1205990868. It was assigned to this individual provider in the NPPES registry on December 20, 2006.
Where is Jeffrey Tseng located?
Jeffrey Tseng practices at 2220 Lynn Rd Suite 109, Thousand Oaks, CA 91360. The listed phone number is (805) 496-8103.
What is Jeffrey Tseng's specialty?
The primary specialty registered for this NPI is Otolaryngology with taxonomy code 207Y00000X.
Is Jeffrey Tseng enrolled in Medicare?
Yes. Jeffrey Tseng is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Jeffrey Tseng's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Jeffrey Tseng reassigns Medicare benefits to Jeffrey Tseng, MD, Inc. (Thousand Oaks, 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 Jeffrey Tseng'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 Jeffrey Tseng was last updated on November 20, 2009. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.