Quick answers
- Which hospitals does John W. Allen Jr. work at?
- Medicare's official clinician data lists John W. Allen Jr. at 4 hospitals: Baptist Memorial Hospital, Baptist Memorial Hospital Desoto, Methodist Healthcare - Olive Branch Hospital and Methodist Hospitals of Memphis. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does John W. Allen Jr. see patients?
- Medicare's clinician data lists 3 practice locations, including Olive Branch, MS and Germantown, TN. Call before your visit to confirm the address.
- What is John W. Allen Jr.'s specialty?
- Medicare lists Internal Medicine as the primary specialty, and also Hospitalist.
- Does John W. Allen Jr. accept Medicare assignment?
- Yes. Medicare's clinician data says John W. Allen Jr. 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 John W. Allen Jr. offer telehealth?
- Medicare's clinician data says John W. Allen Jr. offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for John W. Allen Jr.?
- (901) 516-1290, as listed in official Medicare / NPI Registry data.
- What is John W. Allen Jr.'s NPI number?
- 1801868666. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where John W. Allen Jr. works
Medicare's Facility Affiliation Data lists John W. Allen Jr. at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Baptist Memorial HospitalMemphis, TN · Acute Care Hospital · CCN 440048
- Baptist Memorial Hospital DesotoSouthaven, MS · Acute Care Hospital · CCN 250141
- Methodist Healthcare - Olive Branch HospitalOlive Branch, MS · Acute Care Hospital · CCN 250167
- Methodist Hospitals of MemphisMemphis, TN · Acute Care Hospital · CCN 440049
Practice locations
Addresses where John W. Allen Jr. is enrolled with Medicare (CMS data updated 2026-10-02).
- 4250 Bethel RdOlive Branch, MS 38654 (901) 516‑1290
- 5480 Goodman Rd, Suite 1Olive Branch, MS 38654 (662) 874‑6507
- 7691 Poplar AveGermantown, TN 38138 (901) 516‑1290
Group practices
Medicare enrollment lists John W. Allen Jr. as a member of these groups (CMS data updated 2026-10-02).
- Methodist Inpatient Physicians LLC128 clinicians in the group
- Primary Care Group, LLC112 clinicians in the group
Specialties
- Internal Medicineprimary
- Hospitalistalso
Other internal medicine doctors in Olive Branch
Clinicians with the same Medicare primary specialty in Olive Branch, MS — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Mississippi School Of Medicine |
| Graduation year | 1998 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1801868666 |
| 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