DR. ESTEBAN PEREZ DO
NPI 1306582838
Internal Medicine in San Antonio, TX
About Dr. Esteban Perez Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ESTEBAN PEREZ DO (NPI 1306582838) is an individual internal medicine provider in San Antonio, Texas, licensed in Texas (V9694) and active in the NPI registry since May 2022. He is enrolled in Medicare PECOS, is affiliated with Peterson Regional Medical Center, and is a graduate of Other (2022).
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
Dr. Esteban Perez Do 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
3Medicare enrollment records show Esteban Perez reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
San Antonio, TX 78214
- Reassigned Medicare billing, Texas enrollment
- 125 clinicians in this Medicare group
San Antonio, TX 78214
- Reassigned Medicare billing, Texas enrollment
- 26 clinicians in this Medicare group
San Antonio, TX 78229
- Reassigned Medicare billing, Texas enrollment
- 681 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 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Peterson Regional Medical Center
Acute Care Hospitals · Kerrville, TXMethodist Hospital Atascosa
Acute Care Hospitals · Jourdanton, TXMethodist Hospital
Acute Care Hospitals · San Antonio, TXPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 78212 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.
SAN ANTONIO, TX 78212
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 Esteban Perez's NPI number?
The NPI number for Esteban Perez is 1306582838. It was assigned to this individual provider in the NPPES registry on May 8, 2022.
Where is Esteban Perez located?
Esteban Perez practices at 1310 Mccullough Ave, San Antonio, TX 78212. The listed phone number is (210) 921-2000.
What is Esteban Perez's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Esteban Perez enrolled in Medicare?
Yes. Esteban Perez 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 Esteban Perez's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Esteban Perez reassigns Medicare benefits to 3 organizations: Gmg Health Systems Associates PA (San Antonio, TX), South Texas Ancillary Services, Ltd (San Antonio, TX) and Hospital Medicine Services Of Tx, PLLC (San Antonio, TX). 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 Esteban Perez's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Esteban Perez accept?
Health plans from Blue Cross and Blue Shield of Texas, Oscar Insurance Company and UnitedHealthcare list Esteban Perez 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 Esteban Perez affiliated with any hospitals?
According to CMS data, Esteban Perez is affiliated with Peterson Regional Medical Center, Methodist Hospital Atascosa and Methodist Hospital.
When was this NPI record last updated?
The NPPES record for Esteban Perez was last updated on August 25, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.
# Dr. Esteban Perez, DO · NPI 1306582838
Internal Medicine physician in San Antonio, Texas. Individual provider, active in the CMS NPPES registry since May 8, 2022.
## Identity
- **NPI:** 1306582838 (Entity type: Individual)
- **Enumerated:** May 8, 2022
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** V9694 (Texas)
- **Sole proprietor:** No
## Practice location
- **Address:** 1310 MCCULLOUGH AVE, San Antonio, TX 78212-5601
- **Phone:** (210) 921-2000
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): Gmg Health Systems Associates PA (NPI 1023030160, San Antonio, TX); South Texas Ancillary Services, Ltd (NPI 1063670289, San Antonio, TX); Hospital Medicine Services Of Tx, PLLC (NPI 1881392363, San Antonio, TX) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2022
## Record status
- **NPPES last updated:** August 25, 2025
---
Source: [NPI Profile](https://npiprofile.com/npi/1306582838) · Data from the CMS NPPES public registry.