MARK STELLE APRN
NPI 1699630996
Nurse Practitioner - Family in San Marcos, TX
About Mark Stelle Aprn NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARK STELLE APRN (NPI 1699630996) is an individual family provider in San Marcos, Texas, licensed in Texas (1220613) and active in the NPI registry since December 2025. He is enrolled in Medicare PECOS, is affiliated with Christus Santa Rosa Hospital-san Marcos, and is a graduate of Other (2024).
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Mark Stelle Aprn 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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Christus Santa Rosa Hospital-San Marcos
Acute Care Hospitals · San Marcos, TXPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 78666 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 MARCOS, TX 78666
SAN MARCOS, TX 78666
SAN MARCOS, TX 78666
SAN MARCOS, TX 78666
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 Mark Stelle's NPI number?
The NPI number for Mark Stelle is 1699630996. It was assigned to this individual provider in the NPPES registry on December 18, 2025.
Where is Mark Stelle located?
Mark Stelle practices at 1301 Wonder World Dr, San Marcos, TX 78666. The listed phone number is (512) 353-8979.
What is Mark Stelle's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Mark Stelle enrolled in Medicare?
Yes. Mark Stelle 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.
Is Mark Stelle affiliated with any hospitals?
According to CMS data, Mark Stelle is affiliated with Christus Santa Rosa Hospital-San Marcos.
When was this NPI record last updated?
The NPPES record for Mark Stelle was last updated on January 23, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.
# Mark Stelle, APRN · NPI 1699630996
Family physician in San Marcos, Texas. Individual provider, active in the CMS NPPES registry since December 18, 2025.
## Identity
- **NPI:** 1699630996 (Entity type: Individual)
- **Enumerated:** December 18, 2025
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** 1220613 (Texas)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 1301 WONDER WORLD DR, San Marcos, TX 78666-7533
- **Phone:** (512) 353-8979
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Medical school:** Other, class of 2024
## Record status
- **NPPES last updated:** January 23, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1699630996) · Data from the CMS NPPES public registry.