Quick answers
- Which hospitals does Stephen Villanyi work at?
- Medicare's official clinician data lists Stephen Villanyi at 1 hospital: Johns Hopkins Howard County Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Stephen Villanyi see patients?
- Medicare's clinician data lists 4 practice locations, including Annapolis, MD, Columbia, MD and Prince Frederick, MD. Call before your visit to confirm the address.
- What is Stephen Villanyi's specialty?
- Medicare lists Anesthesiology as the primary specialty.
- Does Stephen Villanyi accept Medicare assignment?
- Medicare's clinician data says Stephen Villanyi may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
- What is the phone number for Stephen Villanyi?
- (443) 481-1000, as listed in official Medicare / NPI Registry data.
- What is Stephen Villanyi's NPI number?
- 1437150232. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Stephen Villanyi works
Medicare's Facility Affiliation Data lists Stephen Villanyi at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Johns Hopkins Howard County Medical CenterColumbia, MD · Acute Care Hospital · CCN 210048
Practice locations
Addresses where Stephen Villanyi is enrolled with Medicare (CMS data updated 2026-10-02).
- 2001 Medical PkwyAnnapolis, MD 21401 (443) 481‑1000
- 5755 Cedar LnColumbia, MD 21044 (410) 740‑7890
- 800 Prince Frederick BlvdPrince Frederick, MD 20678 (410) 535‑2270
- 85 Kindred Way, Apt 201Glen Burnie, MD 21061 (410) 590‑8920
Group practices
Medicare enrollment lists Stephen Villanyi as a member of these groups (CMS data updated 2026-10-02).
- Johns Hopkins University2,909 clinicians in the group
- Anesthesia Company LLC378 clinicians in the group
- Mukul Khandelwal, PA15 clinicians in the group
Specialties
- Anesthesiologyprimary
Other anesthesiologists in Annapolis
Clinicians with the same Medicare primary specialty in Annapolis, MD — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1985 |
| Gender (as listed) | Male |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1437150232 |
| 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