Quick answers
- Where does Jonathan A. Bielfield see patients?
- Medicare's clinician data lists 2 practice locations, including Round Rock, TX and Austin, TX. Call before your visit to confirm the address.
- What is Jonathan A. Bielfield's specialty?
- Medicare lists Dermatology as the primary specialty.
- Does Jonathan A. Bielfield accept Medicare assignment?
- Yes. Medicare's clinician data says Jonathan A. Bielfield 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 Jonathan A. Bielfield?
- (512) 583-3376, as listed in official Medicare / NPI Registry data.
- What is Jonathan A. Bielfield's NPI number?
- 1578684056. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Jonathan A. Bielfield is enrolled with Medicare (CMS data updated 2026-10-02).
- 1760 Round Rock AveRound Rock, TX 78681 (512) 583‑3376
- 7415 Southwest Pkwy, Suite 100Austin, TX 78735 (512) 617‑3376
Group practices
Medicare enrollment lists Jonathan A. Bielfield as a member of this group (CMS data updated 2026-10-02).
- Westlake Dermatology PA54 clinicians in the group
Specialties
- Dermatologyprimary
Other dermatologists in Round Rock
Clinicians with the same Medicare primary specialty in Round Rock, TX — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | Midwestern University, Chicago College Of Osteopathic Med |
| Graduation year | 2002 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1578684056 |
| 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
- 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