Linden Joy Cassidy, MD
Psychiatry Physician · Arlington, MA
Linden Joy Cassidy, MD is a psychiatry physician with a practice address in Arlington, Massachusetts, and NPI 1891769519, issued on Feb 17, 2006. Check the license (Massachusetts 78703, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Linden Joy Cassidy
- Credential
- MD
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- 78703 MA
Self-reported in NPPES; status is on the state search - Practice location
- 94 Pleasant St Ste 203, Arlington, MA 02476
- Phone
- (617) 491-6009
- Enumerated
- Feb 17, 2006
- Record last updated
- Dec 16, 2023
- Fax
- (617) 505-1350
- Medicaid ID
- 3181359 MA
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 2,736 in Massachusetts → Look up another NPI →
Also registered at 94 Pleasant St Ste 203
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Fabienne Bain, PH.D.Psychologist1255885125
Verify Linden Joy Cassidy in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 78703Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
95% fewer Medicare Part D claims than the average psychiatry physician in 2024
50 Medicare Part D claims, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Bupropion Xl12 claims
- Dextroamphetamine-Amphetamine11 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Linden Joy Cassidy among 2,736 psychiatry physician records in Massachusetts
Linden Joy Cassidy, MD is one of 2,736 psychiatry physician records with a practice address in Massachusetts. 65% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 10% of them.
- NPI issued2006 · 10% of these records are older, 51% newer
- In a Medicare fileYes · 65% of these records are
- In the CMS Doctors and Clinicians fileNo · 45% of these records are
- Record last updated2023 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
18 psychiatry physician records list a practice address in Arlington
They are 18 of the 974 NPPES records with a practice address in Arlington, and 2,736 psychiatry physician records in Massachusetts.
All 2,736 in Massachusetts → Every provider in Arlington → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Peter Brigham, MDArlington, MA 024761821184144
- Andrew Bush, M.D.Arlington, MA 024761720138845
- Stanley Cheren, M.D.Arlington, MA 024761740240415
- Peter Cohen, M.D.Arlington, MA 024761962462721
- Julia Coleman, MDArlington, MA 024761427049329
- Alan Corman, MDArlington, MA 024761043247273
- Elizabeth Ellis, M.D.Arlington, MA 024761538284476
- Wendy Fain, MDArlington, MA 024761811957616
Common questions
What is Linden Joy Cassidy, MD's NPI number?
Linden Joy Cassidy, MD's National Provider Identifier (NPI) is 1891769519, issued on Feb 17, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Linden Joy Cassidy, MD located?
The NPPES record lists a practice address at 94 Pleasant St Ste 203, Arlington, MA, 02476. Phone: (617) 491-6009. Providers update this record themselves, so call before visiting.
How can I verify Linden Joy Cassidy, MD's license?
NPPES lists Massachusetts license number 78703, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Linden Joy Cassidy, MD prescribe under Medicare Part D?
In 2024, Linden Joy Cassidy, MD had 50 Medicare Part D claims; the average among psychiatry physician prescribers was 1,000. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.