NPPES file of Aug 9, 2026

Joseph M. Bergen, D.O.

Emergency Medicine Physician · Concord, MA

Joseph M. Bergen, D.O. is an emergency medicine physician with a practice address in Concord, Massachusetts, and NPI 1518921972, issued on Apr 13, 2006. Check the license (Massachusetts 81816, 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
1518921972
Name
Joseph M. Bergen
Credential
D.O.
Primary taxonomy
Emergency Medicine Physician 207P00000X
License number
81816 MA
Self-reported in NPPES; status is on the state search
Practice location
133 Old Road TO 9 Acre Cor, Concord, MA 01742
Phone
(978) 287-3697
Enumerated
Apr 13, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(978) 287-3674
Medicaid ID
3154475 MA
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 133 Old Road TO 9 Acre Cor

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

  1. Marie Aguirre, PA-CPhysician Assistant1467281691
  2. Michelle Allanbrook, RNRegistered Nurse1053833905
  3. David Barash, M.D.Emergency Medicine Physician1699756296
  4. Seamus Bergen, RNPsychiatric/Mental Health Registered Nurse1528638467
  5. Tanya Bergen, LICSWMental Health Counselor1861742140
  6. Toffy Beyloune, MDAnesthesiology Physician1710936752

Verify Joseph M. Bergen 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 81816
    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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54% fewer Medicare Part D claims than the average emergency medicine physician in 2024

105 Medicare Part D claims for 80 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 14 claims were for opioids.

  1. Joseph Bergen105
  2. Specialty average226

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.

Joseph M. Bergen among 1,829 emergency medicine physician records in Massachusetts

Joseph M. Bergen, D.O. is one of 1,829 emergency medicine physician records with a practice address in Massachusetts. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 9% of them.

  • NPI issued2006 · 9% of these records are older, 59% newer
  • In a Medicare fileYes · 82% of these records are
  • In the CMS Doctors and Clinicians fileNo · 66% of these records are
  • Record last updated2007 · 57% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

17 emergency medicine physician records list a practice address in Concord

They are 17 of the 1,078 NPPES records with a practice address in Concord, and 1,829 emergency medicine physician records in Massachusetts.

The 8 emergency medicine physician records with the nearest ZIP codes

  1. Thomas Amoroso, MDConcord, MA 017421497719033
  2. David Barash, M.D.Concord, MA 017421699756296
  3. Thomas Buckley, MDConcord, MA 017421750312443
  4. Robert Collins, M.D.Concord, MA 017421750320289
  5. Margaret Dozark, M.D.Concord, MA 017421700818051
  6. Deborah Gobetz, MDConcord, MA 017421619077971
  7. Deborah Greene, M.D.Concord, MA 017421154369452
  8. Roy Kring, D.O.Concord, MA 017421215046925

Common questions

What is Joseph M. Bergen, D.O.'s NPI number?

Joseph M. Bergen, D.O.'s National Provider Identifier (NPI) is 1518921972, issued on Apr 13, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Joseph M. Bergen, D.O. located?

The NPPES record lists a practice address at 133 Old Road TO 9 Acre Cor, Concord, MA, 01742. Phone: (978) 287-3697. Providers update this record themselves, so call before visiting.

How can I verify Joseph M. Bergen, D.O.'s license?

NPPES lists Massachusetts license number 81816, 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 Joseph M. Bergen, D.O. prescribe under Medicare Part D?

In 2024, Joseph M. Bergen, D.O. had 105 Medicare Part D claims for 80 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.