Quick answers
- Where does Hajoon Chun see patients?
- Medicare's clinician data lists 5 practice locations, including Brooklyn, NY, New Hyde Park, NY and Great Neck, NY. Call before your visit to confirm the address.
- What is Hajoon Chun's specialty?
- Medicare lists Obstetrics/Gynecology as the primary specialty.
- Does Hajoon Chun accept Medicare assignment?
- Medicare's clinician data says Hajoon Chun may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
- What is the phone number for Hajoon Chun?
- (917) 686-0516, as listed in official Medicare / NPI Registry data.
- What is Hajoon Chun's NPI number?
- 1174612592. 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 Hajoon Chun is enrolled with Medicare (CMS data updated 2026-10-02).
- 2829 Ocean PkwyBrooklyn, NY 11235 (917) 686‑0516
- 3333 New Hyde Park Rd, Suite 100101 Garden Ob/gynNew Hyde Park, NY 11042 (516) 439‑5300
- 600 Northern BlvdGreat Neck, NY 11021 (516) 466‑4128
- 7010 Austin St, Suite 200Forest Hills, NY 11375 (888) 501‑0937
- 9811 Queens Blvd, Suite Ll3Rego Park, NY 11374
Group practices
Medicare enrollment lists Hajoon Chun as a member of these groups (CMS data updated 2026-10-02).
- Bethpage Medical PLLC9 clinicians in the group
- Total Sono, LLC4 clinicians in the group
Specialties
- Obstetrics/Gynecologyprimary
Other OB-GYNs in Brooklyn
Clinicians with the same Medicare primary specialty in Brooklyn, NY — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Tufts University School Of Medicine |
| Graduation year | 1991 |
| Gender (as listed) | Male |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1174612592 |
| 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