Alexandra K. Ellis
Physician Assistant · Chestnut Hill, MA
Alexandra K. Ellis is a physician assistant with a practice address in Chestnut Hill, Massachusetts, and NPI 1821745985, issued on Mar 8, 2022. Check the license (Massachusetts PA8583, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Alexandra K. Ellis
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- PA8583 MA
Self-reported in NPPES; status is on the state search - Practice location
- 850 Boylston St Ste 530, Chestnut Hill, MA 02467
- Phone
- (617) 732-9900
- Enumerated
- Mar 8, 2022
- Record last updated
- Mar 8, 2022
- Medicare enrollment
- Enrolled (PECOS I20220404000264); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 4,713 in Massachusetts → Look up another NPI →
Also registered at 850 Boylston St Ste 530
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Lucy FlynnInternal Medicine Physician1518457977
- Lauren Gaffny, PA-CMedical Physician Assistant1578080131
- Van Pham, MDFamily Medicine Physician1003502089
- Ann Pinto, MDInternal Medicine Physician1760580625
- Jean Yeung, M.D., M.SC.Internal Medicine Physician1811018971
Verify Alexandra K. Ellis in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
Search for license PA8583Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
67% fewer Medicare Part D claims than the average physician assistant in 2024
272 Medicare Part D claims for 185 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D.
Most prescribed
- Albuterol Sulfate Hfa34 claims
- Azithromycin26 claims
- Amoxicillin-Clavulanate Potass24 claims
- Cefpodoxime Proxetil16 claims
- Mupirocin12 claims
- Ofloxacin11 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 2 group practices
- Brigham And Womens Physicians Organization IncBrookline, MA
- Dispatchhealth Massachusetts PCWest Springfield, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Alexandra K. Ellis among 4,713 physician assistant records in Massachusetts
Alexandra K. Ellis 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 2022, is newer than 68% of them.
- NPI issued2022 · 68% of these records are older, 25% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated2021 · median 2019 among the 3,217 with a school on file
- 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).
26 physician assistant records list a practice address in Chestnut Hill
They are 26 of the 772 NPPES records with a practice address in Chestnut Hill, and 4,713 physician assistant records in Massachusetts.
All 4,713 in Massachusetts → Every provider in Chestnut Hill → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Kelly Buchanan, PAChestnut Hill, MA 024671205096583
- Rebecca Cantor, PA-CChestnut Hill, MA 024671417317819
- Kelly Diloffi, PA-CChestnut Hill, MA 024671790880276
- Joey Gee, PA/CChestnut Hill, MA 024671700260049
- Laura Gilbert, PA-CChestnut Hill, MA 024671841566791
- Lindsey Grealish, PA-CChestnut Hill, MA 024671952612434
- Handan Isman, PA-CChestnut Hill, MA 024671184856098
- Sheri Martinelli, PA-CChestnut Hill, MA 024671649229022
Common questions
What is Alexandra K. Ellis's NPI number?
Alexandra K. Ellis's National Provider Identifier (NPI) is 1821745985, issued on Mar 8, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Alexandra K. Ellis located?
The NPPES record lists a practice address at 850 Boylston St Ste 530, Chestnut Hill, MA, 02467. Phone: (617) 732-9900. Providers update this record themselves, so call before visiting.
How can I verify Alexandra K. Ellis's license?
NPPES lists Massachusetts license number PA8583, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.
How much does Alexandra K. Ellis prescribe under Medicare Part D?
In 2024, Alexandra K. Ellis had 272 Medicare Part D claims for 185 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.