Independent US Healthcare Provider Directory & Public Medical Database
Active NPI 1013978642 Individual Practitioner Female Practitioner

Diane Louise Sullivan

Social Worker • Ithaca, NY

Professional Overview & Biography Verified Profile Summary

Diane Sullivan is a certified Social Worker practicing in Ithaca, NY. With approximately 38 years of clinical experience since completing medical education in 1988, Diane Sullivan delivers high-quality medical care to the local community at CORNELL UNIVERSITY HEALTH SERVICES.

Diane Sullivan does not directly accept Medicare assignment.

Practice Location & Contact Primary Location

Practice Address

Cornell University Health Services
Ho Plaza

Ithaca, NY 148533101

Telephone 6072556946
Fax 6072543503

Medicare Profile & Education

Medical School

Other

Graduation Year

1988

Medicare Assignment

Not Specified

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Social Worker in Ithaca, NY

Senior Veteran Specialist (>20 Yrs)
Practitioner Clinical Experience
38 Yrs +20.9 yrs vs City Avg
City Avg: 17.1 Yrs
State Avg: 20.1 Yrs
Regional Practice Density
110 Specialists

Practicing in Ithaca, NY (23970 Statewide)

Telehealth Adoption Rate
2.7% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount
67.4% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Sullivan (38 Years) 38 Yrs
Ithaca Specialty Average (17.1 Years) 17.1 Yrs

Medical Specialties & State Licenses

Social Worker Primary Specialty

NUCC Taxonomy Code: 104100000X

State License NY R039539-1

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.

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

40 Associated Practitioners
Monica Josey , RN

Registered Nurse

NPI 1013353952

Registered Nurse

Robin Hamlisch

Social Worker

NPI 1013978667
Dr. David Wentzel , DO

Family Medicine

NPI 1033180666

Doctor of Osteopathic Medicine (D.O.)

Kenneth Cohen

Psychologist

NPI 1053372771
Steven Wood

Physical Therapy Assistant

NPI 1053387142
Amy Hopkins , RN

Registered Nurse

NPI 1063747640

Registered Nurse

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

6 Historical Events
NPI Profile Active July 08, 2007

NPI status registered as active in NPPES database

📍
Updated Practice Location July 08, 2007

Registered at CORNELL UNIVERSITY HEALTH SERVICES, HO PLAZA, ITHACA, NY 148533101 (Tel: 6072556946)

📍
Updated Business Mailing Address July 08, 2007

Registered at CORNELL UNIVERSITY HEALTH SERVICES, HO PLAZA, ITHACA, NY 148533101 (Tel: 6072556946)

👤
Provider Name / Credentials Updated July 08, 2007

Recorded as DIANE SULLIVAN

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) July 08, 2007

Social Worker (License #R039539-1 in NY)

🟢
Initial NPI Registration & Enumeration March 31, 2006

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

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NPI Administrative Meta

NPI Number: 1013978642
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: March 31, 2006
Last Update: July 13, 2026
Sole Proprietor: No

Mailing Address

Cornell University Health Services, Ho Plaza

Ithaca, NY 148533101

Phone: 6072556946

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).
⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.