Quick answers
- Which hospitals does Ann A. Warn work at?
- Medicare's official clinician data lists Ann A. Warn at 1 hospital: Memorial Health. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Ann A. Warn see patients?
- Medicare's clinician data lists 3 practice locations, including Lawton, OK and Oklahoma City, OK. Call before your visit to confirm the address.
- What is Ann A. Warn's specialty?
- Medicare lists Ophthalmology as the primary specialty.
- Does Ann A. Warn accept Medicare assignment?
- Yes. Medicare's clinician data says Ann A. Warn 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 Ann A. Warn?
- (580) 250-5855, as listed in official Medicare / NPI Registry data.
- What is Ann A. Warn's NPI number?
- 1316916794. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Ann A. Warn works
Medicare's Facility Affiliation Data lists Ann A. Warn at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Memorial HealthLawton, OK · Acute Care Hospital · CCN 370056
Practice locations
Addresses where Ann A. Warn is enrolled with Medicare (CMS data updated 2026-10-02).
- 3201 W Gore Blvd, Suite 200Lawton, OK 73505 (580) 250‑5855
- 3201 W Gore Blvd, Suite 200 Dmei LawtonLawton, OK 73505 (580) 250‑5866
- 900 NE 10th St, Ouhp Family MedicineOklahoma City, OK 73104 (572) 244‑0065
Group practices
Medicare enrollment lists Ann A. Warn as a member of these groups (CMS data updated 2026-10-02).
- OU Health Partners Inc1,184 clinicians in the group
- Dean McGee Eye Institute41 clinicians in the group
Specialties
- Ophthalmologyprimary
Other ophthalmologists in Lawton
Clinicians with the same Medicare primary specialty in Lawton, OK — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Kansas School Of Med (kc/wich/sal) |
| Graduation year | 1990 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1316916794 |
| 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