NPPES file of Aug 9, 2026

Charles K. Brummer, M.D.

Family Medicine Physician · Northampton, MA

Charles K. Brummer, M.D. is a family medicine physician with a practice address in Northampton, Massachusetts, and NPI 1730159963, issued on Jan 23, 2006. Check the license (Massachusetts 052204, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the federal record below is the public data PlainDoctor holds for this provider.

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

NPPES recordNPPES file of Aug 9, 2026
1730159963
Name
Charles K. Brummer
Credential
M.D.
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
052204 MA
Self-reported in NPPES; status is on the state search
Practice location
94 King St, Northampton, MA 01060
Phone
(413) 585-8880
Enumerated
Jan 23, 2006
Record last updated
Jul 13, 2026
Fax
(413) 585-8879
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 94 King St

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

  1. Gia Bernini, LICSWMental Health Counselor1770670135
  2. Stephane Jacobus, PH.D.Clinical Psychologist1346382041
  3. Marguerite Kelly, LICSWSocial Worker1578533832
  4. Suzanne La Rochelle, MSW, LICSWClinical Social Worker1558468629
  5. Kerry Lusignan, MA LMHCMental Health Counselor1174586796
  6. Michelle Marchese, LICSWClinical Social Worker1124308705

Verify Charles K. Brummer 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 052204
    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

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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Charles K. Brummer among 2,265 family medicine physician records in Massachusetts

Charles K. Brummer, M.D. is one of 2,265 family medicine physician records with a practice address in Massachusetts. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 14% of them.

  • NPI issued2006 · 14% of these records are older, 55% newer
  • In a Medicare fileNo · 80% of these records are
  • In the CMS Doctors and Clinicians fileNo · 68% of these records are
  • Record last updated2026 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

20 family medicine physician records list a practice address in Northampton

They are 20 of the 1,816 NPPES records with a practice address in Northampton, and 2,265 family medicine physician records in Massachusetts. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 family medicine physician records with the nearest ZIP codes

  1. Shelly Berkowitz, M.D.Northampton, MA 010601982674479
  2. Grant Dawson, M.D.Northampton, MA 010601568648749
  3. Julia De Almeida, MDNorthampton, MA 010601295792349
  4. Joyce Duncan, MDNorthampton, MA 010601770559296
  5. Adam Garretson, MDNorthampton, MA 010601912998915
  6. Kathleen Grandison, MDNorthampton, MA 010601144398868
  7. Lora Grimes, MDNorthampton, MA 010601518907724
  8. Darren Lynch, MDNorthampton, MA 010601922087832

Common questions

What is Charles K. Brummer, M.D.'s NPI number?

Charles K. Brummer, M.D.'s National Provider Identifier (NPI) is 1730159963, issued on Jan 23, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Charles K. Brummer, M.D. located?

The NPPES record lists a practice address at 94 King St, Northampton, MA, 01060. Phone: (413) 585-8880. Providers update this record themselves, so call before visiting.

How can I verify Charles K. Brummer, M.D.'s license?

NPPES lists Massachusetts license number 052204, 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.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.