Quick answers
- Where does Frederick Yoo see patients?
- Medicare's clinician data lists 6 practice locations, including Anaheim, CA and Irvine, CA. Call before your visit to confirm the address.
- What is Frederick Yoo's specialty?
- Medicare lists Otolaryngology as the primary specialty.
- Does Frederick Yoo accept Medicare assignment?
- Yes. Medicare's clinician data says Frederick Yoo 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 Frederick Yoo?
- (888) 988-2800, as listed in official Medicare / NPI Registry data.
- What is Frederick Yoo's NPI number?
- 1811330426. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Frederick Yoo is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 6; the Medicare profile lists all.
- 3430 E La Palma AveAnaheim, CA 92806 (888) 988‑2800
- 3460 E La Palma AveAnaheim, CA 92806 (714) 644‑2010
- 5475 E La Palma AveAnaheim, CA 92807 (714) 279‑6088
- 6640 Alton PkwyIrvine, CA 92618 (949) 932‑5000
- 6650 Alton PkwyIrvine, CA 92618 (949) 932‑5000
Group practices
Medicare enrollment lists Frederick Yoo as a member of this group (CMS data updated 2026-10-02).
- Southern California Permanente Medical Group11,293 clinicians in the group
Specialties
- Otolaryngologyprimary
Other ENT doctors in Anaheim
Clinicians with the same Medicare primary specialty in Anaheim, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Pennsylvania State University College Of Medicine |
| Graduation year | 2013 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1811330426 |
| 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
- 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