DR. LINDEN JOY CASSIDY MD
NPI 1891769519
Psychiatry & Neurology - Psychiatry in Arlington, MA

Active since February 17, 2006Opted out of Medicare · through Mar 15, 2028
94 PLEASANT ST STE 203, ARLINGTON, MA 02476(617) 491-6009(617) 505-1350 Get Directions Write a Review

NPPES record last updated: December 16, 2023. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Dr. Linden Joy Cassidy Md NPPES

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

DR. LINDEN JOY CASSIDY MD (NPI 1891769519) is an individual psychiatry provider in Arlington, Massachusetts, licensed in Massachusetts (78703) and active in the NPI registry since February 2006. She has opted out of Medicare through March 15, 2028 and remains eligible to order and refer.

NPPES Registry Identity

NPI1891769519
Entity TypeIndividualFemale
Primary Taxonomy2084P0800X
Provider Legal NameDR. LINDEN JOY CASSIDYCredential: MD
Location Address94 PLEASANT ST STE 203Arlington, MA 02476-6534
Mailing Address94 Pleasant St Ste 203Arlington, MA 02476-6534 · (617) 491-6009 · Fax (617) 505-1350
Fax(617) 505-1350
Sole ProprietorYes
Enumeration DateFebruary 17, 2006
Last NPPES UpdateDecember 16, 2023
NPPES CertifiedSeptember 8, 2022
NPI 1891769519 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians
Taxonomy Code2084P0800X
License Licensed in MA · 78703
Definition

A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.

Also ListedPsychiatry & Neurology · Child & Adolescent PsychiatryTaxonomy 2084P0804X · License 78703 (MA)
94 PLEASANT ST STE 203, Arlington, MA 02476

Other Identifiers 1

Medicaid3181359MA

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. Linden Joy Cassidy Md 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 March 15, 2016 through March 15, 2028.

Opt-Out Effective DateMarch 15, 2016
Opt-Out In Effect ThroughMarch 15, 2028Opt-out affidavits renew automatically every two years unless cancelled
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesAn opted-out provider can still order and refer for Medicare patients in the categories marked above, even though their own services are not covered.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02476 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$189.86 typical visit price
range $63.72 – $189.86
Typical copayment $47.46 (range $15.93 – $47.46)
Most-billed visit code 99205
Established Patient
$78.84 typical visit price
range $21.07 – $155.29
Typical copayment $19.71 (range $5.26 – $38.82)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 2

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

Psychologist
94 PLEASANT ST STE 203
ARLINGTON, MA 02476
Counselor (Mental Health)
94 PLEASANT ST STE 203
ARLINGTON, MA 02476

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 Linden Cassidy's NPI number?

The NPI number for Linden Cassidy is 1891769519. It was assigned to this individual provider in the NPPES registry on February 17, 2006.

Where is Linden Cassidy located?

Linden Cassidy practices at 94 Pleasant St Ste 203, Arlington, MA 02476. The listed phone number is (617) 491-6009.

What is Linden Cassidy's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.

Is Linden Cassidy enrolled in Medicare?

No. Linden Cassidy has opted out of Medicare through March 15, 2028. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out. The provider remains eligible to order and refer services for Medicare patients.

When was this NPI record last updated?

The NPPES record for Linden Cassidy was last updated on December 16, 2023. NPI Profile syncs with the weekly NPPES data releases published by CMS.