Quick answers
- Which hospitals does Heather Gjertsen work at?
- Medicare's official clinician data lists Heather Gjertsen at 1 hospital: Montefiore St Luke's Cornwall. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Heather Gjertsen see patients?
- Medicare's clinician data lists 4 practice locations, including Flushing, NY, Bronx, NY and Yorktown Heights, NY. Call before your visit to confirm the address.
- What is Heather Gjertsen's specialty?
- Medicare lists Nurse Practitioner as the primary specialty.
- Does Heather Gjertsen accept Medicare assignment?
- Yes. Medicare's clinician data says Heather Gjertsen 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 Heather Gjertsen?
- (718) 961-5300, as listed in official Medicare / NPI Registry data.
- What is Heather Gjertsen's NPI number?
- 1609689793. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Heather Gjertsen works
Medicare's Facility Affiliation Data lists Heather Gjertsen at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Montefiore St Luke's CornwallNewburgh, NY · Acute Care Hospital · CCN 330264
Practice locations
Addresses where Heather Gjertsen is enrolled with Medicare (CMS data updated 2026-10-02).
- 13966 35th AveFlushing, NY 11354 (718) 961‑5300
- 332 E 149th StBronx, NY 10451 (347) 329‑4010
- 3379 Crompond RdYorktown Heights, NY 10598 (914) 930‑5550
- 4806 State Route 52Jeffersonville, NY 12748 (845) 482‑4375
Group practices
Medicare enrollment lists Heather Gjertsen as a member of these groups (CMS data updated 2026-10-02).
- Divinity Medical Services PLLC94 clinicians in the group
- Ion Oltean Physician PC8 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Flushing
Clinicians with the same Medicare primary specialty in Flushing, NY — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2024 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1609689793 |
| 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