Quick answers
- Which hospitals does Jacob A. Klewer work at?
- Medicare's official clinician data lists Jacob A. Klewer at 1 hospital: St. Mary's Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Jacob A. Klewer see patients?
- Medicare's clinician data lists 1 practice location in Tucson, AZ. Call before your visit to confirm the address.
- What is Jacob A. Klewer's specialty?
- Medicare lists Cardiovascular Disease (Cardiology) as the primary specialty.
- Does Jacob A. Klewer accept Medicare assignment?
- Yes. Medicare's clinician data says Jacob A. Klewer 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 Jacob A. Klewer?
- (520) 838-3540, as listed in official Medicare / NPI Registry data.
- What is Jacob A. Klewer's NPI number?
- 1215424759. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Jacob A. Klewer works
Medicare's Facility Affiliation Data lists Jacob A. Klewer at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- St. Mary's HospitalTucson, AZ · Acute Care Hospital · CCN 030010
Practice locations
Addresses where Jacob A. Klewer is enrolled with Medicare (CMS data updated 2026-10-02).
- 4729 E Camp Lowell DrTucson, AZ 85712 (520) 838‑3540
Group practices
Medicare enrollment lists Jacob A. Klewer as a member of this group (CMS data updated 2026-10-02).
- Pima Heart Physicians PC65 clinicians in the group
Specialties
Find other Cardiovascular Disease (Cardiology) doctors in Arizona →
Other cardiologists in Tucson
Clinicians with the same Medicare primary specialty in Tucson, AZ — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Arizona College Of Medicine |
| Graduation year | 2018 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1215424759 |
| 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