Quick answers
- Which hospitals does David A. Long Ii work at?
- Medicare's official clinician data lists David A. Long Ii at 1 hospital: Mercy Hospital Ada. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does David A. Long Ii see patients?
- Medicare's clinician data lists 2 practice locations, including Ada, OK and Oklahoma City, OK. Call before your visit to confirm the address.
- What is David A. Long Ii's specialty?
- Medicare lists Emergency Medicine as the primary specialty.
- Does David A. Long Ii accept Medicare assignment?
- Yes. Medicare's clinician data says David A. Long Ii 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 David A. Long Ii?
- (580) 332-2323, as listed in official Medicare / NPI Registry data.
- What is David A. Long Ii's NPI number?
- 1922065069. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where David A. Long Ii works
Medicare's Facility Affiliation Data lists David A. Long Ii at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Mercy Hospital AdaAda, OK · Acute Care Hospital · CCN 370020
Practice locations
Addresses where David A. Long Ii is enrolled with Medicare (CMS data updated 2026-10-02).
- 430 N Monte Vista StAda, OK 74820 (580) 332‑2323
- 4401 W Memorial Rd, Suite 135 Premier Infusion CenterOklahoma City, OK 73134 (405) 442‑7577
Group practices
Medicare enrollment lists David A. Long Ii as a member of these groups (CMS data updated 2026-10-02).
- Mercy Clinic Oklahoma Communities649 clinicians in the group
- Eaglet Health LLC3 clinicians in the group
Specialties
- Emergency Medicineprimary
Other emergency medicine doctors in Ada
Clinicians with the same Medicare primary specialty in Ada, OK — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Oklahoma College Of Medicine |
| Graduation year | 1996 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1922065069 |
| 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