M. REZA MIZANI, M.D., P.A.
NPI 1275503393
Internal Medicine - Nephrology in San Antonio, TX
About M. Reza Mizani, M.d., P.a. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
M. REZA MIZANI, M.D., P.A. (NPI 1275503393), doing business as South Texas Renal Care Group, is a healthcare organization registered as a nephrology in San Antonio, Texas and active in the NPI registry since January 2006. The organization maintains 12 additional practice locations and lists Veronica Marie Johnson, Practice Manager, as its authorized official.
NPPES Registry Identity
Specialties & Licenses 2
Other Names 2
Secondary Practice Locations 12
Other Identifiers 1
Group Practice 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, revalidation and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
M. Reza Mizani, M.d., P.a. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Revalidation Due Date
Revalidation due by March 31, 2027
Medicare-enrolled providers and suppliers confirm their enrollment information with CMS on a set cycle, every 5 years for most and every 3 years for medical equipment suppliers. CMS sets the due date for each enrollment.
Clinicians Billing Medicare Through This Organization
29Medicare enrollment records show 29 clinicians reassign Medicare billing to M. Reza Mizani, M.D., P.A., which bills Medicare for the services they deliver. Of these, 2 practice at this address and 25 within 10 miles. Listed here are the 20 practicing nearest to this location.
Clinicians by Medicare Specialty 5
Nearest to this location (20)
See all 29Source: 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 M. Reza Mizani, M.D., P.A.'s NPI number?
The NPI number for M. Reza Mizani, M.D., P.A. is 1275503393. It was assigned to this organization in the NPPES registry on January 23, 2006. The provider is doing business as South Texas Renal Care Group and Vein and Artery Surgical Consultants.
Where is M. Reza Mizani, M.D., P.A. located?
M. Reza Mizani, M.D., P.A. is located at 215 N San Saba Ste 301, San Antonio, TX 78207. The listed phone number is (210) 212-8622.
What is M. Reza Mizani, M.D., P.A.'s specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.
Is M. Reza Mizani, M.D., P.A. enrolled in Medicare?
Yes. M. Reza Mizani, M.D., P.A. is registered in the Medicare PECOS enrollment system.
When is M. Reza Mizani, M.D., P.A.'s Medicare revalidation due?
According to the CMS Revalidation Due Date List (October 2026 release), the Medicare Non-DME Part B enrollment for this organization (Texas, Clinic/Group Practice) is due for revalidation by March 31, 2027. Medicare providers and suppliers revalidate their enrollment every 5 years, and medical equipment suppliers every 3 years. Confirm current requirements with your Medicare Administrative Contractor.
How many clinicians bill Medicare through M. Reza Mizani, M.D., P.A.?
According to the CMS Revalidation Reassignment List (October 2026 release), 29 clinicians in 5 Medicare specialties reassign their Medicare billing to M. Reza Mizani, M.D., P.A.. 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. The largest specialties are Nephrology (17), Nurse Practitioner (7) and Vascular Surgery (3). Of these, 2 practice at this address and 25 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
What insurance does M. Reza Mizani, M.D., P.A. accept?
Health plans from Blue Cross and Blue Shield of Texas, Molina Healthcare and WellPoint list M. Reza Mizani, M.D., P.A. 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.
When was this NPI record last updated?
The NPPES record for M. Reza Mizani, M.D., P.A. was last updated on June 18, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# M. Reza Mizani, M.d., P.a. · NPI 1275503393
Nephrology organization in San Antonio, Texas. Organization record, active in the CMS NPPES registry since January 23, 2006.
## Identity
- **NPI:** 1275503393 (Entity type: Organization)
- **Enumerated:** January 23, 2006
- **Primary specialty:** Internal Medicine - Nephrology · taxonomy 207RN0300X
- **Also known as:** South Texas Renal Care Group (Doing Business As); Vein and Artery Surgical Consultants (Doing Business As)
- **Organization subpart:** No
- **Authorized official:** Veronica Johnson, PRACTICE MANAGER
## Practice location
- **Address:** 215 N SAN SABA STE 301, San Antonio, TX 78207-3164
- **Phone:** (210) 212-8622 · **Fax:** (210) 212-9197
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Medicare revalidation due:** March 31, 2027 (Non-DME Part B, Texas, Clinic/Group Practice) · CMS Revalidation Due Date List, October 2026 release
- **Clinicians billing through this organization:** 29 clinicians in 5 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Nephrology (17), Nurse Practitioner (7), Vascular Surgery (3); 2 practice at this address and 25 within 10 miles; [full list](https://npiprofile.com/npi/1275503393/clinicians) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** June 18, 2026
- **Other identifiers:** Medicaid 167911002 (TX)
---
Source: [NPI Profile](https://npiprofile.com/npi/1275503393) · Data from the CMS NPPES public registry.