Quick answers
- Which hospitals does Heather Tassone work at?
- Medicare's official clinician data lists Heather Tassone at 3 hospitals: Hoag Memorial Hospital Presbyterian, Loma Linda University Medical Center and San Antonio Regional Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Heather Tassone see patients?
- Medicare's clinician data lists 4 practice locations, including Loma Linda, CA, Newport Beach, CA and Upland, CA. Call before your visit to confirm the address.
- What is Heather Tassone's specialty?
- Medicare lists Emergency Medicine as the primary specialty.
- Does Heather Tassone accept Medicare assignment?
- Yes. Medicare's clinician data says Heather Tassone 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 Heather Tassone?
- (949) 791-3006, as listed in official Medicare / NPI Registry data.
- What is Heather Tassone's NPI number?
- 1831397603. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Heather Tassone works
Medicare's Facility Affiliation Data lists Heather Tassone at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Hoag Memorial Hospital PresbyterianNewport Beach, CA · Acute Care Hospital · CCN 050224
- Loma Linda University Medical CenterLoma Linda, CA · Acute Care Hospital · CCN 050327
- San Antonio Regional HospitalUpland, CA · Acute Care Hospital · CCN 050099
Practice locations
Addresses where Heather Tassone is enrolled with Medicare (CMS data updated 2026-10-02).
- 11234 Anderson StLoma Linda, CA 92354
- 11370 Anderson StLoma Linda, CA 92354
- 500 Superior Ave, Suite 160Newport Beach, CA 92663 (949) 791‑3006
- 999 San Bernardino RdUpland, CA 91786 (909) 985‑2811
Group practices
Medicare enrollment lists Heather Tassone as a member of these groups (CMS data updated 2026-10-02).
- Faculty Physicians and Surgeons of Llusm1,315 clinicians in the group
- HMTS Inc118 clinicians in the group
- Mountain View Emergency Physicians Medical Group Inc25 clinicians in the group
Specialties
- Emergency Medicineprimary
Other emergency medicine doctors in Loma Linda
Clinicians with the same Medicare primary specialty in Loma Linda, CA — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Graduation year | 2003 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1831397603 |
| 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