Quick answers
- Which hospitals does Tammy L. Sasse work at?
- Medicare's official clinician data lists Tammy L. Sasse at 2 hospitals: HSHS Holy Family Hospital Inc and St Anthonys Memorial Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Tammy L. Sasse see patients?
- Medicare's clinician data lists 2 practice locations, including O Fallon, IL and Effingham, IL. Call before your visit to confirm the address.
- What is Tammy L. Sasse's specialty?
- Medicare lists Nurse Practitioner as the primary specialty.
- Does Tammy L. Sasse accept Medicare assignment?
- Yes. Medicare's clinician data says Tammy L. Sasse 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 Tammy L. Sasse?
- (618) 234-2120, as listed in official Medicare / NPI Registry data.
- What is Tammy L. Sasse's NPI number?
- 1609322585. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Tammy L. Sasse works
Medicare's Facility Affiliation Data lists Tammy L. Sasse at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- HSHS Holy Family Hospital IncGreenville, IL · Acute Care Hospital · CCN 140137
- St Anthonys Memorial HospitalEffingham, IL · Acute Care Hospital · CCN 140032
Practice locations
Addresses where Tammy L. Sasse is enrolled with Medicare (CMS data updated 2026-10-02).
- 1 Saint Elizabeth BlvdO Fallon, IL 62269 (618) 234‑2120
- 801 W Temple AveEffingham, IL 62401 (217) 347‑1690
Group practices
Medicare enrollment lists Tammy L. Sasse as a member of these groups (CMS data updated 2026-10-02).
- HSHS Medical Group Inc219 clinicians in the group
- Vituity - Illinois Auc LLP36 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in O Fallon
Clinicians with the same Medicare primary specialty in O Fallon, IL — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2016 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1609322585 |
| 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