Quick answers
- Which hospitals does Igor Mashchenko work at?
- Medicare's official clinician data lists Igor Mashchenko at 2 hospitals: California Hospital Medical Center LA and Huntington Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Igor Mashchenko see patients?
- Medicare's clinician data lists 3 practice locations, including Pasadena, CA and Calabasas, CA. Call before your visit to confirm the address.
- What is Igor Mashchenko's specialty?
- Medicare lists Emergency Medicine as the primary specialty.
- Does Igor Mashchenko accept Medicare assignment?
- Yes. Medicare's clinician data says Igor Mashchenko 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 Igor Mashchenko?
- (818) 880-2225, as listed in official Medicare / NPI Registry data.
- What is Igor Mashchenko's NPI number?
- 1699270884. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Igor Mashchenko works
Medicare's Facility Affiliation Data lists Igor Mashchenko at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- California Hospital Medical Center LALos Angeles, CA · Acute Care Hospital · CCN 050149
- Huntington HospitalPasadena, CA · Acute Care Hospital · CCN 050438
Practice locations
Addresses where Igor Mashchenko is enrolled with Medicare (CMS data updated 2026-10-02).
- 100 W California BlvdPasadena, CA 91105
- 26777 Agoura Rd, Suite B4Calabasas, CA 91302 (818) 880‑2225
- 3160 E Del Mar Blvd, Suite 101Pasadena, CA 91107 (626) 270‑2400
Group practices
Medicare enrollment lists Igor Mashchenko as a member of these groups (CMS data updated 2026-10-02).
- Exer Medical Corporation340 clinicians in the group
- HMH Emergency Medical Group, Inc.60 clinicians in the group
Specialties
- Emergency Medicineprimary
Other emergency medicine doctors in Pasadena
Clinicians with the same Medicare primary specialty in Pasadena, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2018 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1699270884 |
| 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