VIONA X ZHANG MD
NPI 1740642206
Internal Medicine in Riverside, CA
About Viona X Zhang Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
VIONA X ZHANG MD (NPI 1740642206) is an individual internal medicine provider in Riverside, California, licensed in Virginia (0101270412) and active in the NPI registry since March 2016. She is enrolled in Medicare PECOS, is affiliated with Inova Alexandria Hospital, and is a graduate of University Of Cincinnati College Of Medicine (2016).
NPPES Registry Identity
Specialties & Licenses
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
Viona X Zhang Md 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 Viona Zhang reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Riverside, CA 92501
- Reassigned Medicare billing, California enrollment
- 60 clinicians in this Medicare group
Chantilly, VA 20151
- Reassigned Medicare billing, District of Columbia enrollment
- 379 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 6
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 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Inova Alexandria Hospital
Acute Care Hospitals · Alexandria, VAVirginia Hospital Center
Acute Care Hospitals · Arlington, VAInova Fairfax Hospital
Acute Care Hospitals · Falls Church, VAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 92501 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.
RIVERSIDE, CA 92501
RIVERSIDE, CA 92501
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 Viona Zhang's NPI number?
The NPI number for Viona Zhang is 1740642206. It was assigned to this individual provider in the NPPES registry on March 24, 2016.
Where is Viona Zhang located?
Viona Zhang practices at 3390 University Ave Ste 100, Riverside, CA 92501. The listed phone number is (951) 827-7793.
What is Viona Zhang's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Viona Zhang enrolled in Medicare?
Yes. Viona 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 Viona Zhang's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Viona Zhang reassigns Medicare benefits to 2 organizations: Regents Of The University Of California (Riverside, CA) and Inova Physician Partners, LLC (Chantilly, VA). 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 Viona Zhang's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Viona Zhang accept?
Health plans from Antidote Health Plan of Ohio, Inc. and CareSource list Viona Zhang 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 Viona Zhang affiliated with any hospitals?
According to CMS data, Viona Zhang is affiliated with Inova Alexandria Hospital, Virginia Hospital Center and Inova Fairfax Hospital.
When was this NPI record last updated?
The NPPES record for Viona Zhang was last updated on December 16, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 months 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.
# Viona X Zhang, MD · NPI 1740642206
Internal Medicine physician in Riverside, California. Individual provider, active in the CMS NPPES registry since March 24, 2016.
## Identity
- **NPI:** 1740642206 (Entity type: Individual)
- **Enumerated:** March 24, 2016
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** 0101270412 (Virginia)
- **Sole proprietor:** No
## Practice location
- **Address:** 3390 UNIVERSITY AVE STE 100, Riverside, CA 92501-3315
- **Phone:** (951) 827-7793
## 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): Regents Of The University Of California (NPI 1811255060, Riverside, CA); Inova Physician Partners, LLC (NPI 1215264916, Chantilly, VA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Cincinnati College Of Medicine, class of 2016
## Record status
- **NPPES last updated:** December 16, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1740642206) · Data from the CMS NPPES public registry.