Allysa Evelyn Chadderdon, PA
Physician Assistant · Methuen, MA
Allysa Evelyn Chadderdon, PA is a physician assistant with a practice address in Methuen, Massachusetts, and NPI 1023367174, issued on Sep 5, 2012. Check the license (Massachusetts PA4814, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Allysa Evelyn Chadderdon
- Credential
- PA
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- PA4814 MA
Self-reported in NPPES; status is on the state search - Practice location
- 5 Branch St Ste 100, Methuen, MA 01844
- Phone
- (978) 620-2020
- Enumerated
- Sep 5, 2012
- Record last updated
- Oct 21, 2022
- Fax
- (978) 620-2299
- Medicaid ID
- 03497550 NY
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 4,713 in Massachusetts → Look up another NPI →
Also registered at 5 Branch St Ste 100
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Allysa Evelyn Chadderdon in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
Search for license PA4814Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
34% fewer Medicare Part D claims than the average physician assistant in 2024
549 Medicare Part D claims for 176 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 21% of claims. 39 claims were for opioids.
Most prescribed
- Letrozole40 claims
- Lenalidomide33 claims
- Hydroxyurea31 claims
- Prednisone30 claims
- Oxycodone Hcl28 claims
- Anastrozole21 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.
Allysa Evelyn Chadderdon among 4,713 physician assistant records in Massachusetts
Allysa Evelyn Chadderdon, PA is one of 4,713 physician assistant records with a practice address in Massachusetts. 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 2012, is newer than 25% of them.
- NPI issued2012 · 25% of these records are older, 72% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileNo · 68% of these records are
- Record last updated2022 · 38% 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 Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
13 physician assistant records list a practice address in Methuen
They are 13 of the 881 NPPES records with a practice address in Methuen, and 4,713 physician assistant records in Massachusetts.
All 4,713 in Massachusetts → Every provider in Methuen → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Emma Barker, PA-CMethuen, MA 018441407671019
- Melissa Broderick, D.C., PA-CMethuen, MA 018441144392234
- Adam Broughton, PAMethuen, MA 018441164602546
- Shanell DelarosaMethuen, MA 018441821956525
- Kiely Gamelin, PA-CMethuen, MA 018441083801260
- Derek Girouard, PA-CMethuen, MA 018441437554888
- Claire MelleyMethuen, MA 018441144727926
- Maria Rachidi, PAMethuen, MA 018441942961511
Common questions
What is Allysa Evelyn Chadderdon, PA's NPI number?
Allysa Evelyn Chadderdon, PA's National Provider Identifier (NPI) is 1023367174, issued on Sep 5, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Allysa Evelyn Chadderdon, PA located?
The NPPES record lists a practice address at 5 Branch St Ste 100, Methuen, MA, 01844. Phone: (978) 620-2020. Providers update this record themselves, so call before visiting.
How can I verify Allysa Evelyn Chadderdon, PA's license?
NPPES lists Massachusetts license number PA4814, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.
How much does Allysa Evelyn Chadderdon, PA prescribe under Medicare Part D?
In 2024, Allysa Evelyn Chadderdon, PA had 549 Medicare Part D claims for 176 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.