Quick answers
- Which hospitals does Michael T. Koltz work at?
- Medicare's official clinician data lists Michael T. Koltz at 4 hospitals: Ascension Seton Cedar Park, Ascension Seton Northwest, Ascension Seton Williamson and St David's Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Michael T. Koltz see patients?
- Medicare's clinician data lists 4 practice locations, including Cedar Park, TX, Round Rock, TX and Kyle, TX. Call before your visit to confirm the address.
- What is Michael T. Koltz's specialty?
- Medicare lists Neurosurgery as the primary specialty.
- Does Michael T. Koltz accept Medicare assignment?
- Yes. Medicare's clinician data says Michael T. Koltz 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 Michael T. Koltz offer telehealth?
- Medicare's clinician data says Michael T. Koltz offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Michael T. Koltz?
- (512) 324-4816, as listed in official Medicare / NPI Registry data.
- What is Michael T. Koltz's NPI number?
- 1689700726. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Michael T. Koltz works
Medicare's Facility Affiliation Data lists Michael T. Koltz at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Ascension Seton Cedar ParkCedar Park, TX · Acute Care Hospital · CCN 670043
- Ascension Seton NorthwestAustin, TX · Acute Care Hospital · CCN 450867
- Ascension Seton WilliamsonRound Rock, TX · Acute Care Hospital · CCN 670041
- St David's Medical CenterAustin, TX · Acute Care Hospital · CCN 450431
Practice locations
Addresses where Michael T. Koltz is enrolled with Medicare (CMS data updated 2026-10-02).
- 1401 Medical Pkwy, Suite 320Cedar Park, TX 78613 (512) 324‑4816
- 201 Seton PkwyRound Rock, TX 78665 (512) 324‑4000
- 301 Seton PkwyRound Rock, TX 78665
- 6001 Kyle PkwyKyle, TX 78640 (512) 504‑5000
Group practices
Medicare enrollment lists Michael T. Koltz as a member of this group (CMS data updated 2026-10-02).
- Seton Family of Doctors792 clinicians in the group
Specialties
- Neurosurgeryprimary
Other neurosurgeons in Texas
Clinicians with the same Medicare primary specialty in Texas — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Medical College Of Ohio |
| Graduation year | 2005 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1689700726 |
| 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