NPPES file of Aug 9, 2026

Rebecca Ann Holbrook, PA-C

Physician Assistant · Wilmington, MA

Rebecca Ann Holbrook, PA-C is a physician assistant with a practice address in Wilmington, Massachusetts, and NPI 1528501038, issued on Dec 1, 2016. Check the license (Massachusetts PA101844, 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
1528501038
Name
Rebecca Ann Holbrook
Credential
PA-C
Primary taxonomy
Physician Assistant 363A00000X
License numbers
PA101844 MA
PA53999 CA
1543 NH
Self-reported in NPPES; status is on the state search
Practice location
66B Concord St, Wilmington, MA 01887
Phone
(978) 657-3826
Enumerated
Dec 1, 2016
Record last updated
Jun 10, 2026
Fax
(972) 657-5705
Medicare enrollment
Enrolled (PECOS I20200213002894); 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. Basema HusseinPhysical Therapist1518758879
  4. Anna Musialowski, PA-CPhysician Assistant1861733578

Verify Rebecca Ann Holbrook 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 PA101844
    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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34% fewer Medicare Part D claims than the average physician assistant in 2024

545 Medicare Part D claims for 161 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. 13 claims were for opioids.

  1. Rebecca Holbrook545
  2. Specialty average830

Most prescribed

  1. Lisinopril31 claims
  2. Atorvastatin Calcium29 claims
  3. Amlodipine Besylate28 claims
  4. Levothyroxine Sodium26 claims
  5. Eliquis21 claims
  6. Alendronate Sodium15 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

  1. American Current Care OF Massachusetts PCWilmington, MA
  2. American Current Care PAConcord, NH

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

Rebecca Ann Holbrook among 4,713 physician assistant records in Massachusetts

Rebecca Ann Holbrook, 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 2016, is newer than 36% of them.

  • NPI issued2016 · 36% of these records are older, 60% newer
  • In a Medicare fileYes · 78% of these records are
  • In the CMS Doctors and Clinicians fileYes · 68% of these records are
  • Graduated2016 · median 2019 among the 3,217 with a school on file
  • Record last updated2026 · 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. Anna Musialowski, PA-CWilmington, MA 018871861733578
  6. David RomanoWilmington, MA 018871477090967
  7. Amy Simmons, PA-CWilmington, MA 018871033597075
  8. Colleen Browne, PA-CWestford, MA 018861730011131

Common questions

What is Rebecca Ann Holbrook, PA-C's NPI number?

Rebecca Ann Holbrook, PA-C's National Provider Identifier (NPI) is 1528501038, issued on Dec 1, 2016. An NPI identifies a provider in billing; it is not a license.

Where is Rebecca Ann Holbrook, PA-C located?

The NPPES record lists a practice address at 66B Concord St, Wilmington, MA, 01887. Phone: (978) 657-3826. Providers update this record themselves, so call before visiting.

How can I verify Rebecca Ann Holbrook, PA-C's license?

NPPES lists Massachusetts license number PA101844, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.

How much does Rebecca Ann Holbrook, PA-C prescribe under Medicare Part D?

In 2024, Rebecca Ann Holbrook, PA-C had 545 Medicare Part D claims for 161 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.