Quick answers
- Which hospitals does Erin M. Dainer work at?
- Medicare's official clinician data lists Erin M. Dainer at 1 hospital: John T Mather Memorial Hospital of Port Jefferson. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Erin M. Dainer see patients?
- Medicare's clinician data lists 2 practice locations, including Port Jefferson, NY. Call before your visit to confirm the address.
- What is Erin M. Dainer's specialty?
- Medicare lists Psychiatry as the primary specialty, and also Internal Medicine.
- Does Erin M. Dainer accept Medicare assignment?
- Yes. Medicare's clinician data says Erin M. Dainer 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 Erin M. Dainer offer telehealth?
- Medicare's clinician data says Erin M. Dainer offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Erin M. Dainer?
- (631) 928-3122, as listed in official Medicare / NPI Registry data.
- What is Erin M. Dainer's NPI number?
- 1699090704. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Erin M. Dainer works
Medicare's Facility Affiliation Data lists Erin M. Dainer at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- John T Mather Memorial Hospital of Port JeffersonPort Jefferson, NY · Acute Care Hospital · CCN 330185
Practice locations
Addresses where Erin M. Dainer is enrolled with Medicare (CMS data updated 2026-10-02).
- 125 Oakland Ave, Suite 303Port Jefferson, NY 11777 (631) 928‑3122
- 75 N Country RdPort Jefferson, NY 11777 (631) 473‑1320
Group practices
Medicare enrollment lists Erin M. Dainer as a member of this group (CMS data updated 2026-10-02).
- John T Mather Memorial Hospital175 clinicians in the group
Specialties
- Psychiatryprimary
- Internal Medicinealso
Other psychiatrists in Port Jefferson
Clinicians with the same Medicare primary specialty in Port Jefferson, NY — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Medical College Of Georgia School Of Medicine |
| Graduation year | 2010 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1699090704 |
| 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