Quick answers
- Which hospitals does Yoon Y. Ko work at?
- Medicare's official clinician data lists Yoon Y. Ko at 2 hospitals: Memorial Medical Center and Sutter Tracy Community Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Yoon Y. Ko see patients?
- Medicare's clinician data lists 6 practice locations, including Sacramento, CA, Modesto, CA and Oakland, CA. Call before your visit to confirm the address.
- What is Yoon Y. Ko's specialty?
- Medicare lists Family Practice as the primary specialty.
- Does Yoon Y. Ko accept Medicare assignment?
- Yes. Medicare's clinician data says Yoon Y. Ko 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 Yoon Y. Ko offer telehealth?
- Medicare's clinician data says Yoon Y. Ko offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Yoon Y. Ko?
- (209) 522-0146, as listed in official Medicare / NPI Registry data.
- What is Yoon Y. Ko's NPI number?
- 1396304457. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Yoon Y. Ko works
Medicare's Facility Affiliation Data lists Yoon Y. Ko at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Memorial Medical CenterModesto, CA · Acute Care Hospital · CCN 050557
- Sutter Tracy Community HospitalTracy, CA · Acute Care Hospital · CCN 050313
Practice locations
Addresses where Yoon Y. Ko is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 6; the Medicare profile lists all.
- 2800 L StSacramento, CA 95816
- 3612 Dale RdModesto, CA 95356 (209) 522‑0146
- 3801 Howe StOakland, CA 94611 (510) 752‑1000
- 599 E Valpico RdTracy, CA 95376 (209) 830‑4072
- 600 Coffee RdModesto, CA 95355 (209) 524‑1211
Group practices
Medicare enrollment lists Yoon Y. Ko as a member of these groups (CMS data updated 2026-10-02).
- Permanente Medical Group Inc10,996 clinicians in the group
- Sutter Valley Medical Foundation2,500 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in Sacramento
Clinicians with the same Medicare primary specialty in Sacramento, CA — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | Touro Un Col Of Osteopathic Medicine, New York |
| Graduation year | 2019 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1396304457 |
| 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