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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DIANE LOUISE SULLIVAN
NPI 1013978642
Social Worker in Ithaca, NY

Active since March 31, 2006PECOS Enrolled
CORNELL UNIVERSITY HEALTH SERVICES, HO PLAZA, ITHACA, NY 14853(607) 255-6946(607) 254-3503 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Diane Louise Sullivan NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DIANE LOUISE SULLIVAN (NPI 1013978642) is an individual social worker in Ithaca, New York, licensed in New York (R039539-1) and active in the NPI registry since March 2006. She is enrolled in Medicare PECOS and is a graduate of Other (1988).

NPPES Registry Identity

NPI1013978642
Entity TypeIndividualFemale
Primary Taxonomy104100000X
Provider Legal NameDIANE LOUISE SULLIVAN
Location AddressCORNELL UNIVERSITY HEALTH SERVICES, HO PLAZAIthaca, NY 14853-3101
Mailing AddressCornell University Health Services, Ho PlazaIthaca, NY 14853-3101 · (607) 255-6946 · Fax (607) 254-3503
Phone(607) 255-6946
Fax(607) 254-3503
Sole ProprietorNo
Medical School CMSOtherGraduated 1988
Enumeration DateMarch 31, 2006
Last NPPES UpdateJuly 13, 2026
✔ NPI 1013978642 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySocial WorkerBehavioral Health & Social Service Providers
Taxonomy Code104100000X
License✔ Licensed in NY · R039539-1
Definition
A social worker is a person who is qualified by a Social Work degree, and licensed, certified or registered by the state as a social worker to practice within the scope of that license. A social worker provides assistance and counseling to clients and their families who are dealing with social, emotional and environmental problems. Social work services may be rendered to individuals, families, groups, and the public.
CORNELL UNIVERSITY HEALTH SERVICES, Ithaca, NY 14853
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Diane Louise Sullivan is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID2567762453
PECOS Enrollment IDI20151125000879
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment– Home Health Agency– Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

ROBIN GUSOW HAMLISCH
Social Worker
CORNELL UNIVERSITY HEALTH SERVICES, HO PLAZA
ITHACA, NY 14853
Tompkins County (607) 255-6946
DAVID WENTZEL D.O.
Family Medicine
CORNELL UNIVERSITY HEALTH SERVICES, HO PLAZA
ITHACA, NY 14853
Tompkins County (607) 255-6946
KENNETH MILES COHEN
Psychologist
CORNELL UNIVERSITY HEALTH SERVICES, HO PLAZA
ITHACA, NY 14853
Tompkins County (607) 255-6946
STEVEN L WOOD
Physical Therapy Assistant
CORNELL UNIVERSITY HEALTH SERVICES, HO PLAZA
ITHACA, NY 14853
Tompkins County (607) 255-6946
GAIL BROWN RN
Registered Nurse
CORNELL UNIVERSITY HEALTH SERVICES, HO PLAZA
ITHACA, NY 14853
Tompkins County (607) 255-6946
TRACEY DENARDO
Pharmacist
CORNELL UNIVERSITY HEALTH SERVICES, HO PLAZA
ITHACA, NY 14853
Tompkins County (607) 255-6946
ANNETTE FULLMER WALLUK RN
Registered Nurse
CORNELL UNIVERSITY HEALTH SERVICES, HO PLAZA
ITHACA, NY 14853
Tompkins County (607) 255-6946
CHERYL AVERY LPN
Licensed Practical Nurse
CORNELL UNIVERSITY HEALTH SERVICES, HO PLAZA
ITHACA, NY 14853
Tompkins County (607) 255-6946

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Diane Sullivan's NPI number?

The NPI number for Diane Sullivan is 1013978642. It was assigned to this individual provider in the NPPES registry on March 31, 2006.

Where is Diane Sullivan located?

Diane Sullivan practices at Cornell University Health Services Ho Plaza, Ithaca, NY 14853. The listed phone number is (607) 255-6946.

What is Diane Sullivan's specialty?

The primary specialty registered for this NPI is Social Worker with taxonomy code 104100000X.

Is Diane Sullivan enrolled in Medicare?

Yes. Diane Sullivan is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Diane Sullivan was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 30 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.