MS. IRIS ELENA YSERN ZARRANZ LCSW-C, LICSW, LCSW
NPI 1245329275
Social Worker - Clinical in Rockville, MD

Active since October 11, 2006Opted out of Medicare · through Apr 1, 2028
25 WOOD LN, ROCKVILLE, MD 20850(240) 507-8509 Get Directions Write a Review

NPPES record last updated: September 2, 2025. Verified against the NPPES registry weekly; last sync: July 19, 2026.

Record update history: Sep 2, 2025, May 30, 2025, Nov 28, 2022 (3 updates tracked since 2022).

About Ms. Iris Elena Ysern Zarranz Lcsw-c, Licsw, Lcsw NPPES

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

MS. IRIS ELENA YSERN ZARRANZ LCSW-C, LICSW, LCSW (NPI 1245329275) is an individual clinical provider in Rockville, Maryland, licensed in Maryland (10442) and active in the NPI registry since October 2006. She has opted out of Medicare through April 1, 2028.

NPPES Registry Identity

NPI1245329275
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameMS. IRIS ELENA YSERN ZARRANZCredential: LCSW-C, LICSW, LCSW
Location Address25 WOOD LNRockville, MD 20850-2228
Mailing Address25 Wood LnRockville, MD 20850-2228 · (240) 507-8509
Sole ProprietorNo
Enumeration DateOctober 11, 2006
Last NPPES UpdateSeptember 2, 20253 updates tracked since enumeration
NPPES CertifiedSeptember 2, 2025
NPI 1245329275 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtySocial Worker · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code1041C0700X
Licenses Licensed in MD · 10442 Licensed in VA · 0904014721 Licensed in DC · LC20002319
Definition

A social worker who holds a master's or doctoral degree in social work from an accredited school of social work in addition to at least two years of post-master's supervised experience in a clinical setting. The social worker must be licensed, certified, or registered at the clinical level in the jurisdiction of practice. A clinical social worker provides direct services, including interventions focused on interpersonal interactions, intrapsychic dynamics, and life management issues. Clinical social work services are based on bio-psychosocial perspectives. Services consist of assessment, diagnosis, treatment (including psychotherapy and counseling), client-centered advocacy, consultation, evaluation, and prevention of mental illness, emotional, or behavioral disturbances.

25 WOOD LN, Rockville, MD 20850

Other Names 1

Former Name (1)Ms. Iris Elena Ysern-gonzales Lcsw-c

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

Opted out of Medicare

Ms. Iris Elena Ysern Zarranz Lcsw-c, Licsw, Lcsw has filed a Medicare opt-out affidavit. Services are provided under private contract between the provider and the patient, and are not billed to or reimbursed by Medicare. The opt-out is on file from April 1, 2024 through April 1, 2028.

Opt-Out Effective DateApril 1, 2024
Opt-Out In Effect ThroughApril 1, 2028Opt-out affidavits renew automatically every two years unless cancelled

Other Providers at the Same Location NPPES 5

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

Psychologist
25 WOOD LN
ROCKVILLE, MD 20850
Psychologist
25 WOOD LN
ROCKVILLE, MD 20850
Psychologist (Clinical)
25 WOOD LN
ROCKVILLE, MD 20850
Psychologist (Clinical)
25 WOOD LN
ROCKVILLE, MD 20850
Social Worker (Clinical)
25 WOOD LN
ROCKVILLE, MD 20850

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 Iris Ysern Zarranz's NPI number?

The NPI number for Iris Ysern Zarranz is 1245329275. It was assigned to this individual provider in the NPPES registry on October 11, 2006.

Where is Iris Ysern Zarranz located?

Iris Ysern Zarranz practices at 25 Wood Ln, Rockville, MD 20850. The listed phone number is (240) 507-8509.

What is Iris Ysern Zarranz's specialty?

The primary specialty registered for this NPI is Social Worker, specializing in Clinical, with taxonomy code 1041C0700X.

Is Iris Ysern Zarranz enrolled in Medicare?

No. Iris Ysern Zarranz has opted out of Medicare through April 1, 2028. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out.

When was this NPI record last updated?

The NPPES record for Iris Ysern Zarranz was last updated on September 2, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.