ZAO SIMON ZHANG M.D.
NPI 1801278288
Internal Medicine in Honolulu, HI
About Zao Simon Zhang M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ZAO SIMON ZHANG M.D. (NPI 1801278288) is an individual internal medicine provider in Honolulu, Hawaii, licensed in Hawaii (MD-19461) and active in the NPI registry since June 2015. He is enrolled in Medicare PECOS, is affiliated with The Queens Medical Center, and maintains a secondary practice location in Honolulu.
NPPES Registry Identity
Specialties & Licenses 2
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 and accepts Medicare assignment
Zao Simon Zhang M.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 Reassignments
2Medicare enrollment records show Zao Zhang reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Honolulu, HI 96813
- Reassigned Medicare billing, Hawaii enrollment
- 859 clinicians in this Medicare group
Honolulu, HI 96813
- Reassigned Medicare billing, Hawaii enrollment
- Medicare enrollment name: The Queens Medical Center
- 809 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.
The Queens Medical Center
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.
Referred Medical Equipment & Supplies CMS DME claims 2
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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 Zao Zhang's NPI number?
The NPI number for Zao Zhang is 1801278288. It was assigned to this individual provider in the NPPES registry on June 23, 2015.
Where is Zao Zhang located?
Zao Zhang practices at 1301 Punchbowl St Hospitalist Program, Honolulu, HI 96813. The listed phone number is (808) 538-9011.
What is Zao Zhang's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Zao Zhang enrolled in Medicare?
Yes. Zao Zhang 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 Zao Zhang's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Zao Zhang reassigns Medicare benefits to 2 organizations: Queens University Medical Group (Honolulu, HI) and The Queen's Medical Center (Honolulu, HI). 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 Zao Zhang's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Zao Zhang affiliated with any hospitals?
According to CMS data, Zao Zhang is affiliated with The Queens Medical Center.
When was this NPI record last updated?
The NPPES record for Zao Zhang was last updated on July 3, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.
# Zao Simon Zhang, M.D. · NPI 1801278288
Internal Medicine physician in Honolulu, Hawaii. Individual provider, active in the CMS NPPES registry since June 23, 2015.
## Identity
- **NPI:** 1801278288 (Entity type: Individual)
- **Enumerated:** June 23, 2015
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** MD-19461 (Hawaii)
- **Sole proprietor:** No
## Practice location
- **Address:** 1301 PUNCHBOWL ST, HOSPITALIST PROGRAM, Honolulu, HI 96813-2402
- **Phone:** (808) 538-9011
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Queens University Medical Group (NPI 1891441382, Honolulu, HI); The Queen's Medical Center (NPI 1487693586, Honolulu, HI) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2013
## Record status
- **NPPES last updated:** July 3, 2018
---
Source: [NPI Profile](https://npiprofile.com/npi/1801278288) · Data from the CMS NPPES public registry.