Quick answers
- Where does Diane L. Sullivan see patients?
- Medicare's clinician data lists 1 practice location in Ithaca, NY. Call before your visit to confirm the address.
- What is Diane L. Sullivan's specialty?
- Medicare lists Clinical Social Worker as the primary specialty.
- Does Diane L. Sullivan accept Medicare assignment?
- Medicare's clinician data says Diane L. Sullivan 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 Diane L. Sullivan?
- (607) 592-2553, as listed in official Medicare / NPI Registry data.
- What is Diane L. Sullivan's NPI number?
- 1013978642. 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 Diane L. Sullivan is enrolled with Medicare (CMS data updated 2026-10-02).
- 416 N Tioga StIthaca, NY 14850 (607) 592‑2553
Specialties
- Clinical Social Workerprimary
Other clinical social workers in Ithaca
Clinicians with the same Medicare primary specialty in Ithaca, NY — not a recommendation.
Clinician information
| Graduation year | 1988 |
|---|---|
| Gender (as listed) | Female |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1013978642 |
| 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