GUARDIAN PHYSICIANS PLLC
NPI 1154011286
Internal Medicine in Houston, TX
About Guardian Physicians Pllc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
GUARDIAN PHYSICIANS PLLC (NPI 1154011286) is a healthcare organization registered as an internal medicine in Houston, Texas and active in the NPI registry since May 2023. The organization lists Frank Mahzari, Owner, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Group Practice 1
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Guardian Physicians Pllc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
Medicare enrollment records show 1 clinician reassigns Medicare billing to Guardian Physicians PLLC, which bills Medicare for the services this clinician delivers.
Clinician (1)
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
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 Guardian Physicians PLLC's NPI number?
The NPI number for Guardian Physicians PLLC is 1154011286. It was assigned to this organization in the NPPES registry on May 11, 2023.
Where is Guardian Physicians PLLC located?
Guardian Physicians PLLC is located at 550 Post Oak Blvd Ste 411, Houston, TX 77027. The listed phone number is (832) 669-0111.
What is Guardian Physicians PLLC's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Guardian Physicians PLLC enrolled in Medicare?
Yes. Guardian Physicians PLLC is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Guardian Physicians PLLC?
According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Internal Medicine) reassigns their Medicare billing to Guardian Physicians PLLC. A 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 the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
When was this NPI record last updated?
The NPPES record for Guardian Physicians PLLC was last updated on March 21, 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.
# Guardian Physicians Pllc · NPI 1154011286
Internal Medicine organization in Houston, Texas. Organization record, active in the CMS NPPES registry since May 11, 2023.
## Identity
- **NPI:** 1154011286 (Entity type: Organization)
- **Enumerated:** May 11, 2023
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **Organization subpart:** No
- **Authorized official:** Frank Mahzari, OWNER
## Practice location
- **Address:** 550 POST OAK BLVD STE 411, Houston, TX 77027-9410
- **Phone:** (832) 669-0111
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 1 clinician (Internal Medicine) reassigns Medicare billing to this organization (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** March 21, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1154011286) · Data from the CMS NPPES public registry.