JUSTIN ZUBAK MD
NPI 1831888338
Family Medicine in Foothill Ranch, CA
About Justin Zubak Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JUSTIN ZUBAK MD (NPI 1831888338) is an individual family medicine provider in Foothill Ranch, California, licensed in California (210743) and active in the NPI registry since May 2023. He is enrolled in Medicare PECOS, is affiliated with Mercyone North Iowa Medical Center, and is a graduate of Other (2022).
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
Justin Zubak 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 Reassignment
Medicare enrollment records show Justin Zubak reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Mission Viejo, CA 92691
- Reassigned Medicare billing, California enrollment
- 1,699 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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Mercyone North Iowa Medical Center
Acute Care Hospitals · Mason City, IAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 92610 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 4
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 Justin Zubak's NPI number?
The NPI number for Justin Zubak is 1831888338. It was assigned to this individual provider in the NPPES registry on May 2, 2023.
Where is Justin Zubak located?
Justin Zubak practices at 26795 Portola Pkwy, Foothill Ranch, CA 92610. The listed phone number is (833) 770-9933.
What is Justin Zubak's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Justin Zubak enrolled in Medicare?
Yes. Justin Zubak 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 Justin Zubak's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Justin Zubak reassigns Medicare benefits to Providence Medical Foundation (Mission Viejo, CA). 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 Justin Zubak's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Justin Zubak affiliated with any hospitals?
According to CMS data, Justin Zubak is affiliated with Mercyone North Iowa Medical Center.
When was this NPI record last updated?
The NPPES record for Justin Zubak was last updated on August 12, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Justin Zubak, MD · NPI 1831888338
Family Medicine physician in Foothill Ranch, California. Individual provider, active in the CMS NPPES registry since May 2, 2023.
## Identity
- **NPI:** 1831888338 (Entity type: Individual)
- **Enumerated:** May 2, 2023
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **State license:** 210743 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 26795 PORTOLA PKWY, Foothill Ranch, CA 92610-1713
- **Phone:** (833) 770-9933
## 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:** Providence Medical Foundation (NPI 1427305960, Mission Viejo, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2022
## Record status
- **NPPES last updated:** August 12, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1831888338) · Data from the CMS NPPES public registry.