Quick answers
- Which hospitals does Stefan Cadag work at?
- Medicare's official clinician data lists Stefan Cadag at 1 hospital: UCI Health-Orange. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Stefan Cadag see patients?
- Medicare's clinician data lists 2 practice locations, including Cypress, CA and Los Alamitos, CA. Call before your visit to confirm the address.
- What is Stefan Cadag's specialty?
- Medicare lists Endocrinology as the primary specialty.
- Does Stefan Cadag accept Medicare assignment?
- Yes. Medicare's clinician data says Stefan Cadag 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.
- Does Stefan Cadag offer telehealth?
- Medicare's clinician data says Stefan Cadag offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Stefan Cadag?
- (714) 252-8311, as listed in official Medicare / NPI Registry data.
- What is Stefan Cadag's NPI number?
- 1841408721. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Stefan Cadag works
Medicare's Facility Affiliation Data lists Stefan Cadag at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- UCI Health-OrangeOrange, CA · Acute Care Hospital · CCN 050348
Practice locations
Addresses where Stefan Cadag is enrolled with Medicare (CMS data updated 2026-10-02).
- 10601 Walker St, Suite 250Cypress, CA 90630 (714) 252‑8311
- 3460 Katella AveLos Alamitos, CA 90720 (562) 594‑6599
Group practices
Medicare enrollment lists Stefan Cadag as a member of this group (CMS data updated 2026-10-02).
- Healthcare Partners Affiliates Medical Group754 clinicians in the group
Specialties
- Endocrinologyprimary
Other endocrinologists in California
Clinicians with the same Medicare primary specialty in California — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | Arizona College Of Osteopathic Medicine Mid Western University |
| Graduation year | 2004 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1841408721 |
| 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