NPPES file of Aug 9, 2026

Anna Jessica Musialowski, PA-C

Physician Assistant · Wilmington, MA

Anna Jessica Musialowski, PA-C is a physician assistant with a practice address in Wilmington, Massachusetts, and NPI 1861733578, issued on Mar 5, 2013. Check the license (Massachusetts PA4595, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1861733578
Name
Anna Jessica Musialowski
Credential
PA-C
Primary taxonomy
Physician Assistant 363A00000X
License number
PA4595 MA
Self-reported in NPPES; status is on the state search
Practice location
66B Concord St, Wilmington, MA 01887
Phone
(617) 568-6500
Enumerated
Mar 5, 2013
Record last updated
Aug 4, 2020 (not updated in 6 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20240719000033); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 66B Concord St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Delaney Eisenberg, PA-CPhysician Assistant1861155145
  2. Jessica Glover, DPTPhysical Therapist1134744519
  3. Rebecca Holbrook, PA-CPhysician Assistant1528501038
  4. Basema HusseinPhysical Therapist1518758879

Verify Anna Jessica Musialowski in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
    Search for license PA4595
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Massachusetts license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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83% fewer Medicare Part D claims than the average physician assistant in 2024

137 Medicare Part D claims for 113 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims.

  1. Anna Musialowski137
  2. Specialty average830

Most prescribed

  1. Nitrofurantoin Mono-Macro16 claims
  2. Doxycycline Hyclate14 claims
  3. Cephalexin13 claims
  4. Prednisone13 claims
  5. Amoxicillin-Clavulanate Potass11 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

  1. Nextcare Arizona I JV LLCFlagstaff, AZ

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Anna Jessica Musialowski among 4,713 physician assistant records in Massachusetts

Anna Jessica Musialowski, PA-C 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 2013, is newer than 28% of them.

  • NPI issued2013 · 28% of these records are older, 70% newer
  • In a Medicare fileYes · 78% of these records are
  • In the CMS Doctors and Clinicians fileYes · 68% of these records are
  • Graduated2012 · median 2019 among the 3,217 with a school on file
  • Record last updated2020 · 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).

8 physician assistant records list a practice address in Wilmington

They are 8 of the 443 NPPES records with a practice address in Wilmington, and 4,713 physician assistant records in Massachusetts.

The 8 physician assistant records with the nearest ZIP codes

  1. Stephanie Barczak, PAWilmington, MA 018871144847252
  2. Jenna Comeau, PA-CWilmington, MA 018871124301635
  3. Kerry EatonWilmington, MA 018871164180659
  4. Delaney Eisenberg, PA-CWilmington, MA 018871861155145
  5. Rebecca Holbrook, PA-CWilmington, MA 018871528501038
  6. David RomanoWilmington, MA 018871477090967
  7. Amy Simmons, PA-CWilmington, MA 018871033597075
  8. Colleen Browne, PA-CWestford, MA 018861730011131

Common questions

What is Anna Jessica Musialowski, PA-C's NPI number?

Anna Jessica Musialowski, PA-C's National Provider Identifier (NPI) is 1861733578, issued on Mar 5, 2013. An NPI identifies a provider in billing; it is not a license.

Where is Anna Jessica Musialowski, PA-C located?

The NPPES record lists a practice address at 66B Concord St, Wilmington, MA, 01887. Phone: (617) 568-6500. Providers update this record themselves, so call before visiting.

How can I verify Anna Jessica Musialowski, PA-C's license?

NPPES lists Massachusetts license number PA4595, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.

How much does Anna Jessica Musialowski, PA-C prescribe under Medicare Part D?

In 2024, Anna Jessica Musialowski, PA-C had 137 Medicare Part D claims for 113 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.