DR. MOHAMED ZAHAN GHYAZ MD
NPI 1649858051
Hospitalist in Newport Beach, CA
About Dr. Mohamed Zahan Ghyaz Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MOHAMED ZAHAN GHYAZ MD (NPI 1649858051) is an individual hospitalist provider in Newport Beach, California, licensed in California (A192656) and active in the NPI registry since March 2021. He is enrolled in Medicare PECOS, maintains a secondary practice location in Riverside, and is a graduate of Other (2021).
NPPES Registry Identity
Specialties & Licenses 3
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
Dr. Mohamed Zahan Ghyaz 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 Mohamed Ghyaz reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Newport Beach, CA 92663
- Reassigned Medicare billing, California enrollment
- 105 clinicians in this Medicare group
Palo Alto, CA 94301
- Reassigned Medicare billing, California enrollment
- 4,479 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
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 92663 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.
NEWPORT BEACH, CA 92663
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 Mohamed Ghyaz's NPI number?
The NPI number for Mohamed Ghyaz is 1649858051. It was assigned to this individual provider in the NPPES registry on March 30, 2021.
Where is Mohamed Ghyaz located?
Mohamed Ghyaz practices at 1 Hoag Dr, Newport Beach, CA 92663. The listed phone number is (877) 742-4624.
What is Mohamed Ghyaz's specialty?
The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.
Is Mohamed Ghyaz enrolled in Medicare?
Yes. Mohamed Ghyaz 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 Mohamed Ghyaz's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mohamed Ghyaz reassigns Medicare benefits to 2 organizations: Pacific Hospitalist Associates A Medical Corporation (Newport Beach, CA) and Sutter Bay Medical Foundation (Palo Alto, CA). 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 Mohamed Ghyaz'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 Mohamed Ghyaz was last updated on July 2, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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. Mohamed Zahan Ghyaz, MD · NPI 1649858051
Hospitalist physician in Newport Beach, California. Individual provider, active in the CMS NPPES registry since March 30, 2021.
## Identity
- **NPI:** 1649858051 (Entity type: Individual)
- **Enumerated:** March 30, 2021
- **Primary specialty:** Hospitalist · taxonomy 208M00000X
- **State license:** A192656 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 1 HOAG DR, Newport Beach, CA 92663-4162
- **Phone:** (877) 742-4624
## 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): Pacific Hospitalist Associates A Medical Corporation (NPI 1992750137, Newport Beach, CA); Sutter Bay Medical Foundation (NPI 1013950807, Palo Alto, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2021
## Record status
- **NPPES last updated:** July 2, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1649858051) · Data from the CMS NPPES public registry.