Quick answers
- Which hospitals does Jack Keehn work at?
- Medicare's official clinician data lists Jack Keehn at 5 hospitals: Ascension St Vincent's Clay County, Ascension St Vincent's Riverside, Ascension St Vincent's Southside, HCA Florida Memorial Hospital and HCA Florida Orange Park Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Jack Keehn see patients?
- Medicare's clinician data lists 2 practice locations, including Jacksonville, FL. Call before your visit to confirm the address.
- What is Jack Keehn's specialty?
- Medicare lists Emergency Medicine as the primary specialty.
- Does Jack Keehn accept Medicare assignment?
- Yes. Medicare's clinician data says Jack Keehn 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 Jack Keehn?
- (904) 308-7300, as listed in official Medicare / NPI Registry data.
- What is Jack Keehn's NPI number?
- 1659900512. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Jack Keehn works
Medicare's Facility Affiliation Data lists Jack Keehn at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Ascension St Vincent's Clay CountyMiddleburg, FL · Acute Care Hospital · CCN 100321
- Ascension St Vincent's RiversideJacksonville, FL · Acute Care Hospital · CCN 100040
- Ascension St Vincent's SouthsideJacksonville, FL · Acute Care Hospital · CCN 100307
- HCA Florida Memorial HospitalJacksonville, FL · Acute Care Hospital · CCN 100179
- HCA Florida Orange Park HospitalOrange Park, FL · Acute Care Hospital · CCN 100226
Practice locations
Addresses where Jack Keehn is enrolled with Medicare (CMS data updated 2026-10-02).
- 1 Shircliff WayJacksonville, FL 32204 (904) 308‑7300
- 11850 Atlantic BlvdJacksonville, FL 32225 (904) 998‑5000
Group practices
Medicare enrollment lists Jack Keehn as a member of these groups (CMS data updated 2026-10-02).
- Cep America LLC1,023 clinicians in the group
- Paragon Emergency Services LLC418 clinicians in the group
Specialties
- Emergency Medicineprimary
Other emergency medicine doctors in Jacksonville
Clinicians with the same Medicare primary specialty in Jacksonville, FL — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Univ Of Central Florida, College Of Medicine |
| Graduation year | 2020 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1659900512 |
| 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