Quick answers
- Which hospitals does Jack L. Ackerman work at?
- Medicare's official clinician data lists Jack L. Ackerman at 3 hospitals: El Camino Health, Good Samaritan Hospital and Stanford Health Care. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Jack L. Ackerman see patients?
- Medicare's clinician data lists 1 practice location in San Jose, CA. Call before your visit to confirm the address.
- What is Jack L. Ackerman's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Jack L. Ackerman accept Medicare assignment?
- Yes. Medicare's clinician data says Jack L. Ackerman 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 Jack L. Ackerman offer telehealth?
- Medicare's clinician data says Jack L. Ackerman offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Jack L. Ackerman?
- (408) 371-9010, as listed in official Medicare / NPI Registry data.
- What is Jack L. Ackerman's NPI number?
- 1780794107. 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 L. Ackerman works
Medicare's Facility Affiliation Data lists Jack L. Ackerman at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- El Camino HealthMountain View, CA · Acute Care Hospital · CCN 050308
- Good Samaritan HospitalSan Jose, CA · Acute Care Hospital · CCN 050380
- Stanford Health CareStanford, CA · Acute Care Hospital · CCN 050441
Practice locations
Addresses where Jack L. Ackerman is enrolled with Medicare (CMS data updated 2026-10-02).
- 2410 Samaritan Dr, Suite 201San Jose, CA 95124 (408) 371‑9010
Group practices
Medicare enrollment lists Jack L. Ackerman as a member of this group (CMS data updated 2026-10-02).
- University Healthcare Alliance327 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in San Jose
Clinicians with the same Medicare primary specialty in San Jose, CA — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | At Still University Of Health Sciences, College Of Osteo Med, Kirksville |
| Graduation year | 1988 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1780794107 |
| 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