Quick answers
- Which hospitals does John J. Delaney work at?
- Medicare's official clinician data lists John J. Delaney at 4 hospitals: Avera McKennan Hospital & University Health Center, Avera Sacred Heart Hospital, Mary Washington Hospital and Sentara Careplex Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does John J. Delaney see patients?
- Medicare's clinician data lists 4 practice locations, including Fredericksburg, VA and Sioux Falls, SD. Call before your visit to confirm the address.
- What is John J. Delaney's specialty?
- Medicare lists Neurosurgery as the primary specialty.
- Does John J. Delaney accept Medicare assignment?
- Yes. Medicare's clinician data says John J. Delaney 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 John J. Delaney?
- (540) 741-2871, as listed in official Medicare / NPI Registry data.
- What is John J. Delaney's NPI number?
- 1447647847. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where John J. Delaney works
Medicare's Facility Affiliation Data lists John J. Delaney at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Avera McKennan Hospital & University Health CenterSioux Falls, SD · Acute Care Hospital · CCN 430016
- Avera Sacred Heart HospitalYankton, SD · Acute Care Hospital · CCN 430012
- Mary Washington HospitalFredericksburg, VA · Acute Care Hospital · CCN 490022
- Sentara Careplex HospitalHampton, VA · Acute Care Hospital · CCN 490093
Practice locations
Addresses where John J. Delaney is enrolled with Medicare (CMS data updated 2026-10-02).
- 1101 Sam Perry BlvdFredericksburg, VA 22401 (540) 741‑2871
- 1301 S Cliff Ave, Suite 610Sioux Falls, SD 57105 (605) 322‑8860
- 1325 S Cliff AveSioux Falls, SD 57105
- 1325 S Cliff Ave, RadiologySioux Falls, SD 57105 (605) 322‑4878
Group practices
Medicare enrollment lists John J. Delaney as a member of these groups (CMS data updated 2026-10-02).
- Avera McKennan959 clinicians in the group
- Mary Washington Healthcare Providers LLC262 clinicians in the group
Specialties
- Neurosurgeryprimary
Other neurosurgeons in Fredericksburg
Clinicians with the same Medicare primary specialty in Fredericksburg, VA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2015 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1447647847 |
| 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