NPPES file of Aug 9, 2026

Brian Acker, M.D.

Specialist · Springfield, MA

Brian Acker, M.D. is a specialist with a practice address in Springfield, Massachusetts, and NPI 1619077369, issued on Sep 23, 2006. Check the license (Massachusetts 74050, 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
1619077369
Name
Brian Acker
Credential
M.D.
Primary taxonomy
Specialist 174400000X
License number
74050 MA
Self-reported in NPPES; status is on the state search
Practice location
3350 Main St, Springfield, MA 01107
Phone
(413) 794-9175
Enumerated
Sep 23, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Medicaid ID
3080137 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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8 nearest specialist records → All 1,096 in Massachusetts → Look up another NPI →

Also registered at 3350 Main St

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

  1. Syed Ali, MDMedical Oncology Physician1174751267
  2. Jennifer Alli, DNP FNP-BCFamily Nurse Practitioner1255764890
  3. Janivette Alsina, MD, PHDSurgical Oncology Physician1477758043
  4. Armen Asik, M.DMedical Oncology Physician1326066200
  5. Prarthna Bhardwaj, MDHematology & Oncology Physician1487007225
  6. Candace Bignell, NPAdult Health Nurse Practitioner1831117720

Verify Brian Acker 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 74050    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

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92% fewer Medicare Part D claims than the average specialist in 2024

109 Medicare Part D claims for 48 beneficiaries, against an average of 1,380 among the 8,233 providers of this specialty who prescribed in Part D.

  1. Brian Acker109
  2. Specialty average1,380

Most prescribed

  1. Mometasone Furoate35 claims
  2. Tamsulosin Hcl23 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.

Brian Acker among 1,096 specialist records in Massachusetts

Brian Acker, M.D. is one of 1,096 specialist records with a practice address in Massachusetts. 15% 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 10% of them.

  • NPI issued2006 · 10% of these records are older, 69% newer
  • In a Medicare fileYes · 15% of these records are
  • In the CMS Doctors and Clinicians fileNo · 12% of these records are
  • Record last updated2007 · 82% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 174400000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Specialist providers in Massachusetts

There are 1,096 specialist records in Massachusetts.

All 1,096 in Massachusetts → Every provider in Springfield → Specialist nationwide →

The 8 specialist records with the nearest ZIP codes

  1. Karen BalmerSpringfield, MA 011071255743720
  2. Brian Bredvik, M.D.Springfield, MA 011071689660284
  3. Rachel CanevariSpringfield, MA 011071780033407
  4. Gregory Faust, M.D.Springfield, MA 011071164417929
  5. Mark Jackowitz, M.D.Springfield, MA 011071508851411
  6. David March, M.D.Springfield, MA 011071407820798
  7. Philip Moraitis, M.D.Springfield, MA 011071396730172
  8. Thomas Napier, M.D.Springfield, MA 011071750480422

Common questions

What is Brian Acker, M.D.'s NPI number?

Brian Acker, M.D.'s National Provider Identifier (NPI) is 1619077369, issued on Sep 23, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Brian Acker, M.D. located?

The NPPES record lists a practice address at 3350 Main St, Springfield, MA, 01107. Phone: (413) 794-9175. Providers update this record themselves, so call before visiting.

How can I verify Brian Acker, M.D.'s license?

NPPES lists Massachusetts license number 74050, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.

How much does Brian Acker, M.D. prescribe under Medicare Part D?

In 2024, Brian Acker, M.D. had 109 Medicare Part D claims for 48 beneficiaries; the average among specialist prescribers was 1,380. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.