CAROL HSIAO O.D.
NPI 1720137581
Optometrist - Corneal and Contact Management in Seattle, WA
About Carol Hsiao O.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CAROL HSIAO O.D. (NPI 1720137581) is an individual corneal and contact management provider in Seattle, Washington, licensed in Washington (OD00003607) and active in the NPI registry since January 2007. She is enrolled in Medicare PECOS and is a graduate of University Of California - School Of Optometry (2000).
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 1
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
Carol Hsiao O.d. 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 Reassignment
Medicare enrollment records show Carol Hsiao reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Seattle, WA 98109
- Reassigned Medicare billing, Washington enrollment
- 2,678 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 98112 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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 Carol Hsiao's NPI number?
The NPI number for Carol Hsiao is 1720137581. It was assigned to this individual provider in the NPPES registry on January 10, 2007.
Where is Carol Hsiao located?
Carol Hsiao practices at 310 15th Ave E, Seattle, WA 98112. The listed phone number is (206) 326-3000.
What is Carol Hsiao's specialty?
The primary specialty registered for this NPI is Optometrist, specializing in Corneal and Contact Management, with taxonomy code 152WC0802X.
Is Carol Hsiao enrolled in Medicare?
Yes. Carol Hsiao 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 organization bills Medicare for Carol Hsiao's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Carol Hsiao reassigns Medicare benefits to Kaiser Foundation Health Plan Of Washington (Seattle, WA). 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 Carol Hsiao'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 Carol Hsiao was last updated on April 15, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# Carol Hsiao, O.D. · NPI 1720137581
Corneal and Contact Management provider in Seattle, Washington. Individual provider, active in the CMS NPPES registry since January 10, 2007.
## Identity
- **NPI:** 1720137581 (Entity type: Individual)
- **Enumerated:** January 10, 2007
- **Primary specialty:** Optometrist - Corneal and Contact Management · taxonomy 152WC0802X
- **State license:** OD00003607 (Washington)
- **Sole proprietor:** No
## Practice location
- **Address:** 310 15TH AVE E, Seattle, WA 98112-5103
- **Phone:** (206) 326-3000
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health
- **Bills Medicare through:** Kaiser Foundation Health Plan Of Washington (NPI 1396810701, Seattle, WA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of California - School Of Optometry, class of 2000
## Record status
- **NPPES last updated:** April 15, 2021
- **Other identifiers:** Medicaid 2024743 (WA)
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Source: [NPI Profile](https://npiprofile.com/npi/1720137581) · Data from the CMS NPPES public registry.