Allysa Chadderdon, PA
NPI 1023367174 · Physician Assistant · Methuen, MA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Allysa Chadderdon, PA is a Physician Assistant provider in Methuen, MA (NPI 1023367174).
Provider details
- NPI number
- 1023367174
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA
- Sex
- Female
- Sole proprietor
- No
- License
- PA4814 (MA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
13 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 13 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Letrozole | 40 | 17 |
| Lenalidomide | 33 | — |
| Hydroxyurea | 31 | 11 |
| Prednisone | 30 | 14 |
| Oxycodone Hcl | 28 | 13 |
| Anastrozole | 21 | — |
| Acyclovir | 18 | — |
| Apixabanbrand: Eliquis |
Practice location
Mailing address
Registry dates
- Enumerated
- 2012-09-05
- Last updated
- 2022-10-21
- Certified
- 2022-10-21
Frequently asked questions
- What is Allysa Chadderdon's NPI number?
- Allysa Chadderdon's National Provider Identifier (NPI) is 1023367174, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Allysa Chadderdon's specialty?
- Allysa Chadderdon is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Allysa Chadderdon located?
- Allysa Chadderdon's practice location on file with NPPES is 5 Branch St Ste 100, Methuen, MA 01844-1979.
- What is Allysa Chadderdon's phone number?
- The practice phone number listed in the NPPES registry for Allysa Chadderdon is (978) 620-2020.
- Does Allysa Chadderdon accept Medicare?
- Allysa Chadderdon is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Allysa Chadderdon's NPI active?
- Yes — Allysa Chadderdon's NPI (1023367174) is active in the NPPES registry as of the last update on 2022-10-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.