Quick answers
- Where does Keith Y. Ko see patients?
- Medicare's clinician data lists 3 practice locations, including Brooklyn, NY and East Setauket, NY. Call before your visit to confirm the address.
- What is Keith Y. Ko's specialty?
- Medicare lists Physician Assistant as the primary specialty.
- Does Keith Y. Ko accept Medicare assignment?
- Yes. Medicare's clinician data says Keith 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.
- What is the phone number for Keith Y. Ko?
- (718) 237-0404, as listed in official Medicare / NPI Registry data.
- What is Keith Y. Ko's NPI number?
- 1942920665. 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 Keith Y. Ko is enrolled with Medicare (CMS data updated 2026-10-02).
- 142 Joralemon StBrooklyn, NY 11201 (718) 237‑0404
- 1660 E 14th St, Suite 3aBrooklyn, NY 11229 (718) 376‑0500
- 4 Technology Dr, Suite 180East Setauket, NY 11733 (631) 689‑3188
Group practices
Medicare enrollment lists Keith Y. Ko as a member of this group (CMS data updated 2026-10-02).
- Advanced Dermatology PC68 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Brooklyn
Clinicians with the same Medicare primary specialty in Brooklyn, NY — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 2022 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1942920665 |
| 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