MR. TSU-EN TAN MS, OTR/L, CHT, CKTP
NPI 1023350683
Occupational Therapist - Hand in Oceanside, CA
About Mr. Tsu-en Tan Ms, Otr/l, Cht, Cktp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MR. TSU-EN TAN MS, OTR/L, CHT, CKTP (NPI 1023350683) is an individual hand provider in Oceanside, California, licensed in California (23605) and active in the NPI registry since March 2013. He is a graduate of Tufts University School Of Medicine (2012).
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
Mr. Tsu-en Tan Ms, Otr/l, Cht, Cktp 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
3Medicare enrollment records show Tsu-en Tan reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Encinitas, CA 92024
- Reassigned Medicare billing, California enrollment
- 1,598 clinicians in this Medicare group
Kennewick, WA 99336
- Reassigned Medicare billing, Washington enrollment
- 589 clinicians in this Medicare group
Everett, WA 98201
- Reassigned Medicare billing, Washington enrollment
- 1,285 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.
Areas of Expertise CMS Part B claims 7
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.
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.
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 Tsu-en Tan's NPI number?
The NPI number for Tsu-en Tan is 1023350683. It was assigned to this individual provider in the NPPES registry on March 21, 2013.
Where is Tsu-en Tan located?
Tsu-en Tan practices at 2205 Vista Way, Oceanside, CA 92054. The listed phone number is (760) 704-5750.
What is Tsu-en Tan's specialty?
The primary specialty registered for this NPI is Occupational Therapist, specializing in Hand, with taxonomy code 225XH1200X.
Is Tsu-en Tan enrolled in Medicare?
Yes. Tsu-en Tan 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 Tsu-en Tan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Tsu-en Tan reassigns Medicare benefits to 3 organizations: Scripps Health (Encinitas, CA), Proliance Surgeons, Inc., P.S. (Kennewick, WA) and Optum Care Washington PLLC (Everett, WA). 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 Tsu-en Tan'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 Tsu-en Tan was last updated on January 18, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Mr. Tsu-En Tan, MS, OTR/L, CHT, CKTP · NPI 1023350683
Hand provider in Oceanside, California. Individual provider, active in the CMS NPPES registry since March 21, 2013.
## Identity
- **NPI:** 1023350683 (Entity type: Individual)
- **Enumerated:** March 21, 2013
- **Primary specialty:** Occupational Therapist - Hand · taxonomy 225XH1200X
- **State license:** 23605 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 2205 VISTA WAY, Oceanside, CA 92054-5661
- **Phone:** (760) 704-5750
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): Scripps Health (NPI 1700829199, Encinitas, CA); Proliance Surgeons, Inc., P.S. (NPI 1255683959, Kennewick, WA); Optum Care Washington PLLC (NPI 1831186766, Everett, WA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Tufts University School Of Medicine, class of 2012
## Record status
- **NPPES last updated:** January 18, 2023
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Source: [NPI Profile](https://npiprofile.com/npi/1023350683) · Data from the CMS NPPES public registry.