Quick answers
- Which hospitals does Marc Duke work at?
- Medicare's official clinician data lists Marc Duke at 5 hospitals: Ascension Seton Hays, Ascension Seton Medical Center Austin, Ascension Seton Northwest, Ascension Seton Southwest and Dell Seton Med Center at the University of TX. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Marc Duke see patients?
- Medicare's clinician data lists 1 practice location in Cedar Park, TX. Call before your visit to confirm the address.
- What is Marc Duke's specialty?
- Medicare lists Certified Clinical Nurse Specialist (CNS) as the primary specialty.
- Does Marc Duke accept Medicare assignment?
- Yes. Medicare's clinician data says Marc Duke 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.
- What is the phone number for Marc Duke?
- (512) 528-7000, as listed in official Medicare / NPI Registry data.
- What is Marc Duke's NPI number?
- 1659943322. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Marc Duke works
Medicare's Facility Affiliation Data lists Marc Duke at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Ascension Seton HaysKyle, TX · Acute Care Hospital · CCN 670056
- Ascension Seton Medical Center AustinAustin, TX · Acute Care Hospital · CCN 450056
- Ascension Seton NorthwestAustin, TX · Acute Care Hospital · CCN 450867
- Ascension Seton SouthwestAustin, TX · Acute Care Hospital · CCN 450865
- Dell Seton Med Center at the University of TXAustin, TX · Acute Care Hospital · CCN 450124
Practice locations
Addresses where Marc Duke is enrolled with Medicare (CMS data updated 2026-10-02).
- 1401 Medical PkwyCedar Park, TX 78613 (512) 528‑7000
Group practices
Medicare enrollment lists Marc Duke as a member of this group (CMS data updated 2026-10-02).
- Usacs Integrated Acute Care Services of Texas, PLLC387 clinicians in the group
Specialties
Find other clinicians: Certified Clinical Nurse Specialist (CNS), Texas →
Other clinical nurse specialists in Texas
Clinicians with the same Medicare primary specialty in Texas — not a recommendation.
Clinician information
| Credential | CNS |
|---|---|
| Graduation year | 2021 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1659943322 |
| 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