Alexis Paige O'Brien, PHYSICIAN ASSISTANT
Medical Physician Assistant · Milford, MA
Alexis Paige O'Brien, PHYSICIAN ASSISTANT is a medical physician assistant with a practice address in Milford, Massachusetts, and NPI 1386231520, issued on Dec 22, 2020. Check the license (Massachusetts PA8531, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Alexis Paige O'Brien
- Credential
- PHYSICIAN ASSISTANT
- Primary taxonomy
- Medical Physician Assistant 363AM0700X
- License number
- PA8531 MA
Self-reported in NPPES; status is on the state search - Practice location
- 14 Prospect St, Milford, MA 01757
- Phone
- (508) 473-1190
- Enumerated
- Dec 22, 2020
- Record last updated
- Aug 28, 2025
- Medicare enrollment
- Enrolled (PECOS I20220407001226); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest medical physician assistant records → All 886 in Massachusetts → Look up another NPI →
Also registered at 14 Prospect St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Maureen Allen, PA-CMedical Physician Assistant1306803275
- Nitya Ananthakrishnan, M.D.Pediatrics Physician1902190648
- Raafat Awad Mousad, M.D.Hospitalist Physician1760402556
- Ariel Axelbaum, MDNeurology Physician1629637988
- Michael Babcock, M.D.Anesthesiology Physician1134228018
- Monzolesso Bagah-Kognagba, MDInternal Medicine Physician1023515996
Verify Alexis Paige O'Brien in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
Search for license PA8531Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
78% fewer Medicare Part D claims than the average medical physician assistant in 2024
252 Medicare Part D claims for 140 beneficiaries, against an average of 1,148 among the 23,801 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims.
Most prescribed
- Cefpodoxime Proxetil31 claims
- Prednisone24 claims
- Doxycycline Hyclate16 claims
- Meclizine Hcl16 claims
- Clopidogrel12 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
- Milford Regional Physician Group, Inc.Milford, MA
- Umass Memorial Medical Group IncMilford, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Alexis Paige O'Brien among 886 medical physician assistant records in Massachusetts
Alexis Paige O'Brien, PHYSICIAN ASSISTANT is one of 886 medical 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 2020, is newer than 77% of them.
- NPI issued2020 · 77% of these records are older, 18% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2021 · median 2015 among the 559 with a school on file
- Record last updated2025 · 53% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363AM0700X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Medical Physician Assistant providers in Massachusetts
There are 886 medical physician assistant records in Massachusetts.
All 886 in Massachusetts → Every provider in Milford → Medical Physician Assistant nationwide →
The 8 medical physician assistant records with the nearest ZIP codes
- Maureen Allen, PA-CMilford, MA 017571306803275
- Brian Coletti, PA-CMilford, MA 017571184261646
- Stacey Coyle, P.A.Milford, MA 017571467477679
- Vera Hernandez-Holmes, PA-C, RDMilford, MA 017571023299864
- Emily Joyal, PA-CMilford, MA 017571356779631
- Jenna Dickson, PA-CNatick, MA 017601407226053
- Ross Weisman, PA-CNatick, MA 017601104359165
- Julie Gilman, PA-CHudson, MA 017491346636123
Common questions
What is Alexis Paige O'Brien, PHYSICIAN ASSISTANT's NPI number?
Alexis Paige O'Brien, PHYSICIAN ASSISTANT's National Provider Identifier (NPI) is 1386231520, issued on Dec 22, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Alexis Paige O'Brien, PHYSICIAN ASSISTANT located?
The NPPES record lists a practice address at 14 Prospect St, Milford, MA, 01757. Phone: (508) 473-1190. Providers update this record themselves, so call before visiting.
How can I verify Alexis Paige O'Brien, PHYSICIAN ASSISTANT's license?
NPPES lists Massachusetts license number PA8531, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.
How much does Alexis Paige O'Brien, PHYSICIAN ASSISTANT prescribe under Medicare Part D?
In 2024, Alexis Paige O'Brien, PHYSICIAN ASSISTANT had 252 Medicare Part D claims for 140 beneficiaries; the average among medical physician assistant prescribers was 1,148. 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.