DR. HEATHER LYLE CASSIDY PSYD
NPI 1427098961
Psychologist - Clinical in Silver Spring, MD

Q: What is Heather Cassidy's NPI number?

The NPI number for Heather Cassidy is 1427098961. It was assigned to this individual provider in the NPPES registry on June 6, 2006.

Q: What is Heather Cassidy's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.

Q: Is Heather Cassidy enrolled in Medicare?

No. Heather Cassidy has opted out of Medicare through January 1, 2027. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out.

Q: When was this NPI record last updated?

The NPPES record for Heather Cassidy was last updated on December 30, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years 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.

Active since June 06, 2006Opted out of Medicare · through Jan 1, 2027

8700 GEORGIA AVE STE 305, SILVER SPRING, MD 20910(202) 251-5197 Get Directions Write a Review

NPPES record last updated: December 30, 2022. Verified against the NPPES registry weekly; last sync: August 16, 2026.

On this page

About Dr. Heather Lyle Cassidy Psyd NPPES

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

DR. HEATHER LYLE CASSIDY PSYD (NPI 1427098961) is an individual clinical provider in Silver Spring, Maryland, licensed in Maryland (04180) and active in the NPI registry since June 2006. She has opted out of Medicare through January 1, 2027.

NPPES Registry Identity

NPI1427098961

Entity TypeIndividualFemale

Primary Taxonomy103TC0700X

Provider Legal NameDR. HEATHER LYLE CASSIDYCredential: PSYD

Location Address8700 GEORGIA AVE STE 305Silver Spring, MD 20910-3605

Mailing Address1800 Belvedere BlvdSilver Spring, MD 20902-4004 · (202) 251-5197

Phone(202) 251-5197

Sole ProprietorNo

Enumeration DateJune 6, 2006

Last NPPES UpdateDecember 30, 2022

NPPES CertifiedDecember 30, 2022

✔ NPI 1427098961 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychologist · ClinicalBehavioral Health & Social Service Providers

Taxonomy Code103TC0700X

Licenses✔ Licensed in MD · 04180✔ Licensed in DC · PSY1000359

Definition

A psychologist who provides continuing and comprehensive mental and behavioral health care for individuals and families; consultation to agencies and communities; training, education and supervision; and research-based practice. It is a specialty in breadth -- one that is broadly inclusive of severe psychopathology -- and marked by comprehensiveness and integration of knowledge and skill from a broad array of disciplines within and outside of psychology proper. The scope of clinical psychology encompasses all ages, multiple diversities and varied systems.

8700 GEORGIA AVE STE 305, Silver Spring, MD 20910

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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

ⓘ

Opted out of Medicare

Dr. Heather Lyle Cassidy Psyd 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 January 1, 2025 through January 1, 2027.

Opt-Out Effective DateJanuary 1, 2025

Opt-Out In Effect ThroughJanuary 1, 2027Opt-out affidavits renew automatically every two years unless cancelled

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 Heather Cassidy's NPI number?

The NPI number for Heather Cassidy is 1427098961. It was assigned to this individual provider in the NPPES registry on June 6, 2006.

Where is Heather Cassidy located?

Heather Cassidy practices at 8700 Georgia Ave Ste 305, Silver Spring, MD 20910. The listed phone number is (202) 251-5197.

What is Heather Cassidy's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.

Is Heather Cassidy enrolled in Medicare?

No. Heather Cassidy has opted out of Medicare through January 1, 2027. 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 Heather Cassidy was last updated on December 30, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years 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.