Quick answers
- Which hospitals does Keith Atassi work at?
- Medicare's official clinician data lists Keith Atassi at 5 hospitals: Community Hospital, Franciscan Health Crown Point, Northwest Health - Porter, St Catherine Hospital Inc and St Mary Medical Center Inc. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Keith Atassi see patients?
- Medicare's clinician data lists 2 practice locations, including Portage, IN and Chesterton, IN. Call before your visit to confirm the address.
- What is Keith Atassi's specialty?
- Medicare lists Cardiovascular Disease (Cardiology) as the primary specialty, and also Internal Medicine.
- Does Keith Atassi accept Medicare assignment?
- Yes. Medicare's clinician data says Keith Atassi 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 Keith Atassi?
- (219) 759-6092, as listed in official Medicare / NPI Registry data.
- What is Keith Atassi's NPI number?
- 1336160753. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Keith Atassi works
Medicare's Facility Affiliation Data lists Keith Atassi at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Community HospitalMunster, IN · Acute Care Hospital · CCN 150125
- Franciscan Health Crown PointCrown Point, IN · Acute Care Hospital · CCN 150126
- Northwest Health - PorterValparaiso, IN · Acute Care Hospital · CCN 150035
- St Catherine Hospital IncEast Chicago, IN · Acute Care Hospital · CCN 150008
- St Mary Medical Center IncHobart, IN · Acute Care Hospital · CCN 150034
Practice locations
Addresses where Keith Atassi is enrolled with Medicare (CMS data updated 2026-10-02).
- 3545 Arbor BlvdPortage, IN 46368 (219) 759‑6092
- 425 Sand Creek Dr, Suite CChesterton, IN 46304
Group practices
Medicare enrollment lists Keith Atassi as a member of these groups (CMS data updated 2026-10-02).
- Community Care Network Inc379 clinicians in the group
- Chesterton Physical Therapy Inc186 clinicians in the group
Specialties
Find other Cardiovascular Disease (Cardiology) doctors in Indiana →
Other cardiologists in Indiana
Clinicians with the same Medicare primary specialty in Indiana — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1980 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1336160753 |
| 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