Quick answers
- Which hospitals does John D. Patterson work at?
- Medicare's official clinician data lists John D. Patterson at 3 hospitals: Chester County Hospital, Christiana Hospital and Union Hospital of Cecil County. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does John D. Patterson see patients?
- Medicare's clinician data lists 3 practice locations, including Chadds Ford, PA, Newark, DE and Wilmington, DE. Call before your visit to confirm the address.
- What is John D. Patterson's specialty?
- Medicare lists Orthopedic Surgery as the primary specialty.
- Does John D. Patterson accept Medicare assignment?
- Yes. Medicare's clinician data says John D. Patterson 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 D. Patterson?
- (302) 655-9494, as listed in official Medicare / NPI Registry data.
- What is John D. Patterson's NPI number?
- 1457390957. 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 D. Patterson works
Medicare's Facility Affiliation Data lists John D. Patterson at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Chester County HospitalWest Chester, PA · Acute Care Hospital · CCN 390179
- Christiana HospitalNewark, DE · Acute Care Hospital · CCN 080001
- Union Hospital of Cecil CountyElkton, MD · Acute Care Hospital · CCN 210032
Practice locations
Addresses where John D. Patterson is enrolled with Medicare (CMS data updated 2026-10-02).
- 100 Wilmington W Chester Pike, Suite 110Chadds Ford, PA 19317 (302) 655‑9494
- 1096 Old Churchmans RdNewark, DE 19713 (302) 655‑9494
- 1941 Limestone Rd, Suite 101Wilmington, DE 19808 (302) 655‑9494
Group practices
Medicare enrollment lists John D. Patterson as a member of this group (CMS data updated 2026-10-02).
- Regional Orthopaedic Associates PA62 clinicians in the group
Specialties
- Orthopedic Surgeryprimary
Other orthopedic surgeons in Chadds Ford
Clinicians with the same Medicare primary specialty in Chadds Ford, PA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Harvard Medical School |
| Graduation year | 1995 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1457390957 |
| 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