Quick answers
- Which hospitals does Daniel W. Mackey work at?
- Medicare's official clinician data lists Daniel W. Mackey at 4 hospitals: Mercy Hospital Fort Smith, Mercy Hospital Ozark, Mercy Hospital Paris and Mercy Hospital Waldron. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Daniel W. Mackey see patients?
- Medicare's clinician data lists 1 practice location in Fort Smith, AR. Call before your visit to confirm the address.
- What is Daniel W. Mackey's specialty?
- Medicare lists Hematology/Oncology as the primary specialty.
- Does Daniel W. Mackey accept Medicare assignment?
- Yes. Medicare's clinician data says Daniel W. Mackey 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.
- Does Daniel W. Mackey offer telehealth?
- Medicare's clinician data says Daniel W. Mackey offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Daniel W. Mackey?
- (479) 314-5175, as listed in official Medicare / NPI Registry data.
- What is Daniel W. Mackey's NPI number?
- 1407877947. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Daniel W. Mackey works
Medicare's Facility Affiliation Data lists Daniel W. Mackey at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Mercy Hospital Fort SmithFort Smith, AR · Acute Care Hospital · CCN 040062
- Mercy Hospital OzarkOzark, AR · Critical Access Hospital · CCN 041303
- Mercy Hospital ParisParis, AR · Critical Access Hospital · CCN 041300
- Mercy Hospital WaldronWaldron, AR · Critical Access Hospital · CCN 041305
Practice locations
Addresses where Daniel W. Mackey is enrolled with Medicare (CMS data updated 2026-10-02).
- 7301 Rogers AveFort Smith, AR 72903 (479) 314‑5175
Group practices
Medicare enrollment lists Daniel W. Mackey as a member of this group (CMS data updated 2026-10-02).
- Mercy Clinic Fort Smith Communities372 clinicians in the group
Specialties
- Hematology/Oncologyprimary
Other hematologist-oncologists in Fort Smith
Clinicians with the same Medicare primary specialty in Fort Smith, AR — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1998 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1407877947 |
| 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