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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.

MS. ELLEN KYONG HONG PILON LMSW
NPI 1942073374
Social Worker in Rockville, MD

Active since November 07, 2023
200 WOOD HILL RD, ROCKVILLE, MD 20850(240) 800-5772 Get Directions Write a Review

NPPES record last updated: August 19, 2026. Verified against the NPPES registry weekly; last sync: September 06, 2026.

Record update history: Aug 19, 2026, Nov 7, 2023 (2 updates tracked since 2023).

About Ms. Ellen Kyong Hong Pilon Lmsw NPPES

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

MS. ELLEN KYONG HONG PILON LMSW (NPI 1942073374) is an individual social worker in Rockville, Maryland, licensed in Maryland (35249) and active in the NPI registry since November 2023.

NPPES Registry Identity

NPI1942073374
Entity TypeIndividualFemale
Primary Taxonomy104100000X
Provider Legal NameMS. ELLEN KYONG HONG PILONCredential: LMSW
Location Address200 WOOD HILL RDRockville, MD 20850-8724
Mailing Address200 Wood Hill RdRockville, MD 20850-8724 · (240) 800-5772
Phone(240) 800-5772
Sole ProprietorNo
Enumeration DateNovember 7, 2023
Last NPPES UpdateAugust 19, 20262 updates tracked since enumeration
NPPES CertifiedAugust 19, 2026
✔ NPI 1942073374 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 MD · 35249
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.
200 WOOD HILL RD, Rockville, MD 20850
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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.

KIRSTEN SIDELL LCMFT
Marriage & Family Therapist
200 WOOD HILL RD
ROCKVILLE, MD 20850
Montgomery County (301) 838-4200
MARY CATHERINE LARKIN
Social Worker
200 WOOD HILL RD
ROCKVILLE, MD 20850
Montgomery County (301) 838-4200
LAURA LYN ZYNDA LMSW
Social Worker
200 WOOD HILL RD
ROCKVILLE, MD 20850
Montgomery County (240) 800-5772
LEAH SINGMAN LMSW
Social Worker (Clinical)
200 WOOD HILL RD
ROCKVILLE, MD 20850
Montgomery County (240) 800-5772
MR. STEVEN BRIAN WECHSLER LCSW-C
Social Worker (Clinical)
200 WOOD HILL RD
ROCKVILLE, MD 20850
Montgomery County (301) 838-4200
OLGALIDIA ROSAS LCSW-C
Social Worker (Clinical)
200 WOOD HILL RD
ROCKVILLE, MD 20850
Montgomery County (240) 800-5772
CHRISTINE SYLVEST PH.D.
Psychologist (Clinical)
200 WOOD HILL RD
ROCKVILLE, MD 20850
Montgomery County (301) 838-4200
JESSICA CAMPAIN LGPC
Counselor (Professional)
200 WOOD HILL RD
ROCKVILLE, MD 20850
Montgomery County (301) 838-4200

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 Ellen Pilon's NPI number?

The NPI number for Ellen Pilon is 1942073374. It was assigned to this individual provider in the NPPES registry on November 7, 2023.

Where is Ellen Pilon located?

Ellen Pilon practices at 200 Wood Hill Rd, Rockville, MD 20850. The listed phone number is (240) 800-5772.

What is Ellen Pilon's specialty?

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

When was this NPI record last updated?

The NPPES record for Ellen Pilon was last updated on August 19, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 24 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.