Quick answers
- Which hospitals does Mary Lee work at?
- Medicare's official clinician data lists Mary Lee at 2 hospitals: CHRISTUS Santa Rosa Hospital-San Marcos and St David's Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Mary Lee see patients?
- Medicare's clinician data lists 1 practice location in San Marcos, TX. Call before your visit to confirm the address.
- What is Mary Lee's specialty?
- Medicare lists Cardiovascular Disease (Cardiology) as the primary specialty, and also Internal Medicine.
- Does Mary Lee accept Medicare assignment?
- Yes. Medicare's clinician data says Mary Lee accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- Does Mary Lee offer telehealth?
- Medicare's clinician data says Mary Lee offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Mary Lee?
- (512) 396-5623, as listed in official Medicare / NPI Registry data.
- What is Mary Lee's NPI number?
- 1831544642. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Mary Lee works
Medicare's Facility Affiliation Data lists Mary Lee at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- CHRISTUS Santa Rosa Hospital-San MarcosSan Marcos, TX · Acute Care Hospital · CCN 450272
- St David's Medical CenterAustin, TX · Acute Care Hospital · CCN 450431
Practice locations
Addresses where Mary Lee is enrolled with Medicare (CMS data updated 2026-10-02).
- 1251 Sadler Dr, Suite 2San Marcos, TX 78666 (512) 396‑5623
Group practices
Medicare enrollment lists Mary Lee as a member of this group (CMS data updated 2026-10-02).
- St Davids Heart and Vascular PLLC203 clinicians in the group
Specialties
Find other Cardiovascular Disease (Cardiology) doctors in Texas →
Other cardiologists in San Marcos
Clinicians with the same Medicare primary specialty in San Marcos, TX — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Graduation year | 2016 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1831544642 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians