Quick answers
- Which hospitals does Mark I. Paulsen work at?
- Medicare's official clinician data lists Mark I. Paulsen at 1 hospital: Providence Mission Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Mark I. Paulsen see patients?
- Medicare's clinician data lists 2 practice locations, including Mission Viejo, CA and Laguna Beach, CA. Call before your visit to confirm the address.
- What is Mark I. Paulsen's specialty?
- Medicare lists Emergency Medicine as the primary specialty.
- Does Mark I. Paulsen accept Medicare assignment?
- Yes. Medicare's clinician data says Mark I. Paulsen 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 Mark I. Paulsen?
- (949) 365-2202, as listed in official Medicare / NPI Registry data.
- What is Mark I. Paulsen's NPI number?
- 1588078448. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Mark I. Paulsen works
Medicare's Facility Affiliation Data lists Mark I. Paulsen at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Providence Mission HospitalMission Viejo, CA · Acute Care Hospital · CCN 050567
Practice locations
Addresses where Mark I. Paulsen is enrolled with Medicare (CMS data updated 2026-10-02).
- 27700 Medical Ctr RdMission Viejo, CA 92691 (949) 365‑2202
- 31872 Coast HwyLaguna Beach, CA 92651 (949) 499‑7193
Group practices
Medicare enrollment lists Mark I. Paulsen as a member of these groups (CMS data updated 2026-10-02).
- Mission Viejo Emergency Medical Associates, Inc.30 clinicians in the group
- Mission Viejo Emergency Medical Associates18 clinicians in the group
Specialties
- Emergency Medicineprimary
Other emergency medicine doctors in Mission Viejo
Clinicians with the same Medicare primary specialty in Mission Viejo, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2014 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1588078448 |
| 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