DR. NAI-WEN CHANG O.D.
NPI 1982798484
Optometrist in Honolulu, HI
About Dr. Nai-wen Chang O.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. NAI-WEN CHANG O.D. (NPI 1982798484) is an individual optometrist in Honolulu, Hawaii, licensed in Hawaii (OD-372) and active in the NPI registry since October 2006. She is enrolled in Medicare PECOS, is affiliated with Straub Clinic And Hospital, and is a graduate of Southern College Of Optometry (1993).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
Accepted Insurance
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
Dr. Nai-wen Chang 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 Nai-wen Chang reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Honolulu, HI 96813
- Reassigned Medicare billing, Hawaii enrollment
- 664 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 2
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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Straub Clinic And Hospital
Acute Care Hospitals · Honolulu, HIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 96813 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.
HONOLULU, HI 96813
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 Nai-wen Chang's NPI number?
The NPI number for Nai-wen Chang is 1982798484. It was assigned to this individual provider in the NPPES registry on October 2, 2006.
Where is Nai-wen Chang located?
Nai-wen Chang practices at 888 S King St, Honolulu, HI 96813. The listed phone number is (808) 522-4430.
What is Nai-wen Chang's specialty?
The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.
Is Nai-wen Chang enrolled in Medicare?
Yes. Nai-wen Chang 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 Nai-wen Chang's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Nai-wen Chang reassigns Medicare benefits to Straub Clinic & Hospital (Honolulu, HI). 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 Nai-wen Chang's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Nai-wen Chang accept?
Health plans from HMSA list Nai-wen Chang as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Nai-wen Chang affiliated with any hospitals?
According to CMS data, Nai-wen Chang is affiliated with Straub Clinic And Hospital.
When was this NPI record last updated?
The NPPES record for Nai-wen Chang was last updated on September 1, 2010. 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.
# Dr. Nai-Wen Chang, O.D. · NPI 1982798484
Optometrist provider in Honolulu, Hawaii. Individual provider, active in the CMS NPPES registry since October 2, 2006.
## Identity
- **NPI:** 1982798484 (Entity type: Individual)
- **Enumerated:** October 2, 2006
- **Primary specialty:** Optometrist · taxonomy 152W00000X
- **State license:** OD-372 (Hawaii)
- **Sole proprietor:** No
## Practice location
- **Address:** 888 S KING ST, Honolulu, HI 96813-3009
- **Phone:** (808) 522-4430 · **Fax:** (808) 522-4431
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health
- **Bills Medicare through:** Straub Clinic & Hospital (NPI 1457306508, Honolulu, HI), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Southern College Of Optometry, class of 1993
## Record status
- **NPPES last updated:** September 1, 2010
- **Other identifiers:** Medicare UPIN U60010 (HI)
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Source: [NPI Profile](https://npiprofile.com/npi/1982798484) · Data from the CMS NPPES public registry.