Quick answers
- Which hospitals does Derek Diffendaffer work at?
- Medicare's official clinician data lists Derek Diffendaffer at 5 hospitals: CJW Medical Center, Community Hospital, LLC, Duncan Regional Hospital, Inc, Grady Memorial Hospital and Henrico Doctors' Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Derek Diffendaffer see patients?
- Medicare's clinician data lists 12 practice locations, including Dallas, TX, Oklahoma City, OK and Plano, TX. Call before your visit to confirm the address.
- What is Derek Diffendaffer's specialty?
- Medicare lists Diagnostic Radiology as the primary specialty.
- Does Derek Diffendaffer accept Medicare assignment?
- Yes. Medicare's clinician data says Derek Diffendaffer 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 Derek Diffendaffer?
- (972) 649-6460, as listed in official Medicare / NPI Registry data.
- What is Derek Diffendaffer's NPI number?
- 1558629113. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Derek Diffendaffer works
Medicare's Facility Affiliation Data lists Derek Diffendaffer at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- CJW Medical CenterRichmond, VA · Acute Care Hospital · CCN 490112
- Community Hospital, LLCOklahoma City, OK · Acute Care Hospital · CCN 370203
- Duncan Regional Hospital, IncDuncan, OK · Acute Care Hospital · CCN 370023
- Grady Memorial HospitalChickasha, OK · Acute Care Hospital · CCN 370054
- Henrico Doctors' HospitalRichmond, VA · Acute Care Hospital · CCN 490118
Practice locations
Addresses where Derek Diffendaffer is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 12; the Medicare profile lists all.
- 11970 N Central Expy, Suite 100Dallas, TX 75243 (972) 649‑6460
- 3100 SW 89th St, Community Hospital SouthOklahoma City, OK 73159 (405) 602‑8100
- 3700 W 15th St, Building D Suite 200Plano, TX 75075 (972) 758‑9000
- 3833 Northridge RdNorman, OK 73072 (580) 515‑0326
- 3833 Northridge Rd, Telerad Derek DiffendafferNorman, OK 73072 · North Star FM LP (580) 515‑0326
Group practices
Medicare enrollment lists Derek Diffendaffer as a member of these groups (CMS data updated 2026-10-02).
- Singleton Associates PA838 clinicians in the group
- Eagle Partners, PLLC171 clinicians in the group
- North Star MCD LLC80 clinicians in the group
- North Star Mri of Frisco LP75 clinicians in the group
- Radiology Associates of Richmond Inc71 clinicians in the group
- North Star Diagnostic Imaging LLC69 clinicians in the group
Specialties
- Diagnostic Radiologyprimary
Other radiologists in Dallas
Clinicians with the same Medicare primary specialty in Dallas, TX — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2012 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1558629113 |
| 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