Cassidy Longo, PA-S
Physician Assistant · New Haven, CT
Cassidy Longo, PA-S is a physician assistant with a practice address in New Haven, Connecticut, and NPI 1386311264, issued on Aug 27, 2021. Check the license with the Connecticut board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Cassidy Longo
- Credential
- PA-S
- Primary taxonomy
- Physician Assistant 363A00000X
- Practice location
- 800 Howard Ave, New Haven, CT 06519
- Phone
- (203) 785-2579
- Enumerated
- Aug 27, 2021
- Record last updated
- Aug 8, 2023
- Medicare enrollment
- Enrolled (PECOS I20230922001429); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 2,047 in Connecticut → Look up another NPI →
Also registered at 800 Howard Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Christina Allen, MDSports Medicine (Orthopaedic Surgery) Physician1841242351
Verify Cassidy Longo in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Connecticut board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
87% fewer Medicare Part D claims than the average physician assistant in 2024
111 Medicare Part D claims for 72 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. 14 claims were for opioids.
Most prescribed
- Diclofenac Sodium36 claims
- Celecoxib33 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.
Bills Medicare through one group practice
- Yale UniversityNorth Haven, CT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Cassidy Longo among 2,047 physician assistant records in Connecticut
Cassidy Longo, PA-S is one of 2,047 physician assistant records with a practice address in Connecticut. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 65% of them.
- NPI issued2021 · 65% of these records are older, 29% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 65% of these records are
- Graduated2022 · median 2018 among the 1,338 with a school on file
- Record last updated2023 · 42% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
256 physician assistant records list a practice address in New Haven
They are 256 of the 9,793 NPPES records with a practice address in New Haven, and 2,047 physician assistant records in Connecticut.
All 2,047 in Connecticut → Every provider in New Haven → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Adrienne Burns, PANew Haven, CT 065191508997834
- Theresa Cohen, PA, RNNew Haven, CT 065191083633622
- Christopher Dill, PA-CNew Haven, CT 065191386816932
- Lisa Ford, PA-CNew Haven, CT 065191265494926
- Amy Haydon-Ryan, BS, PA-CNew Haven, CT 065191598938078
- Simone Howe, P.A.New Haven, CT 065191982718870
- Kimberly Keane, PA-CNew Haven, CT 065191538148069
- Nesrine Khoury, PANew Haven, CT 065191023261203
Common questions
What is Cassidy Longo, PA-S's NPI number?
Cassidy Longo, PA-S's National Provider Identifier (NPI) is 1386311264, issued on Aug 27, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Cassidy Longo, PA-S located?
The NPPES record lists a practice address at 800 Howard Ave, New Haven, CT, 06519. Phone: (203) 785-2579. Providers update this record themselves, so call before visiting.
How can I verify Cassidy Longo, PA-S's license?
Search the Connecticut board that licenses this profession; the NPPES record confirms identity only.
How much does Cassidy Longo, PA-S prescribe under Medicare Part D?
In 2024, Cassidy Longo, PA-S had 111 Medicare Part D claims for 72 beneficiaries; the average among physician assistant prescribers was 830. 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.