Quick answers
- Which hospitals does Stan Mathioulakis work at?
- Medicare's official clinician data lists Stan Mathioulakis at 2 hospitals: Huntington Hospital and USC Arcadia Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Stan Mathioulakis see patients?
- Medicare's clinician data lists 2 practice locations, including Pasadena, CA and Duarte, CA. Call before your visit to confirm the address.
- What is Stan Mathioulakis's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Stan Mathioulakis accept Medicare assignment?
- Yes. Medicare's clinician data says Stan Mathioulakis 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 Stan Mathioulakis?
- (626) 584-9898, as listed in official Medicare / NPI Registry data.
- What is Stan Mathioulakis's NPI number?
- 1912080847. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Stan Mathioulakis works
Medicare's Facility Affiliation Data lists Stan Mathioulakis at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Huntington HospitalPasadena, CA · Acute Care Hospital · CCN 050438
- USC Arcadia HospitalArcadia, CA · Acute Care Hospital · CCN 050238
Practice locations
Addresses where Stan Mathioulakis is enrolled with Medicare (CMS data updated 2026-10-02).
- 10 Congress St, Suite 506Pasadena, CA 91105 (626) 584‑9898
- 931 Buena Vista St, Suite 102Duarte, CA 91010 (626) 358‑3204
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Pasadena
Clinicians with the same Medicare primary specialty in Pasadena, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1985 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1912080847 |
| 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