NPPES file of Aug 9, 2026

Erik Benjamin Holbrook, MD

Clinical Informatics Physician · Boston, MA

Erik Benjamin Holbrook, MD is a clinical informatics physician with a practice address in Boston, Massachusetts, and NPI 1831779388, issued on Apr 9, 2021. Check the license (Massachusetts 1023932, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; 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
1831779388
Name
Erik Benjamin Holbrook
Credential
MD
Primary taxonomy
Clinical Informatics Physician 2083C0008X
License numbers
1023932 MA
39617 OK
Self-reported in NPPES; status is on the state search
Practice location
75 Francis St, Boston, MA 02115
Phone
(617) 732-6040
Enumerated
Apr 9, 2021
Record last updated
Jul 15, 2025
Medicare enrollment
Enrolled (PECOS I20250909003570); accepts Medicare assignment
Medical or professional school
University Of Oklahoma College Of Medicine, 2022
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 75 Francis St

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

  1. Amin AalipourStudent in an Organized Health Care Education/Training Program1902483258
  2. Emily Aaronson, M.D.Emergency Medicine Physician1962791558
  3. Sarah Abbett, M.D.Anesthesiology Physician1902097736
  4. Christine Abbott, NPAdult Health Nurse Practitioner1851471940
  5. Muhammad Abd-El-Barr, M.D., PH.D.Neurological Surgery Physician1891922688
  6. Duaa AbdelhameidStudent in an Organized Health Care Education/Training Program1851852867

Verify Erik Benjamin Holbrook in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
    Search for license 1023932
    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
Open the Massachusetts license search

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18% fewer Medicare Part D claims than the average clinical informatics physician in 2024

577 Medicare Part D claims for 75 beneficiaries, against an average of 703 among the 5 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims.

  1. Erik Holbrook577
  2. Specialty average703

Most prescribed

  1. Atorvastatin Calcium34 claims
  2. Amlodipine Besylate23 claims
  3. Albuterol Sulfate Hfa19 claims
  4. Omeprazole18 claims
  5. Ezetimibe17 claims
  6. Fluticasone Propionate17 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. Brigham And Womens Physicians Organization IncBoston, MA

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

Clinical Informatics Physician providers in Massachusetts

There are 1 clinical informatics physician records in Massachusetts.

Common questions

What is Erik Benjamin Holbrook, MD's NPI number?

Erik Benjamin Holbrook, MD's National Provider Identifier (NPI) is 1831779388, issued on Apr 9, 2021. An NPI identifies a provider in billing; it is not a license.

Where is Erik Benjamin Holbrook, MD located?

The NPPES record lists a practice address at 75 Francis St, Boston, MA, 02115. Phone: (617) 732-6040. Providers update this record themselves, so call before visiting.

How can I verify Erik Benjamin Holbrook, MD's license?

NPPES lists Massachusetts license number 1023932, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Erik Benjamin Holbrook, MD prescribe under Medicare Part D?

In 2024, Erik Benjamin Holbrook, MD had 577 Medicare Part D claims for 75 beneficiaries; the average among clinical informatics physician prescribers was 703. 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.