NPPES file of Aug 9, 2026

Irma A. Alarcon Najera, M.D.

Infectious Disease Physician · Brockton, MA

Irma A. Alarcon Najera, M.D. is an infectious disease physician with a practice address in Brockton, Massachusetts, and NPI 1548416449, issued on Aug 11, 2008. Check the license (Massachusetts 256890, 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
1548416449
Name
Irma A. Alarcon Najera
Credential
M.D.
Primary taxonomy
Infectious Disease Physician 207RI0200X
License number
256890 MA
Self-reported in NPPES; status is on the state search
Practice location
830 Oak St, Brockton, MA 02301
Phone
(508) 897-4794
Enumerated
Aug 11, 2008
Record last updated
May 2, 2014 (not updated in 12 years: call before relying on the address or phone)
Fax
(508) 897-4781
Medicare enrollment
Enrolled (PECOS I20180220002789); 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.
Download card Updates feed

Also registered at 830 Oak St

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

  1. Soheil Amin-Hanjani, M.D.Obstetrics & Gynecology Physician1598723512
  2. Angela Aslami, MDObstetrics & Gynecology Physician1619943206
  3. Richard Catrambone, DMD, MDOral and Maxillofacial Surgery (Dentist)1538132956
  4. Sandra Chenkin, MDObstetrics & Gynecology Physician1851381552
  5. Shreekant Chopra, M.D.Nephrology Physician1740288943
  6. Ronald Coutu, MDPulmonary Disease Physician1548255433

Verify Irma A. Alarcon Najera 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 256890
    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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

82% fewer Medicare Part D claims than the average infectious disease physician in 2024

126 Medicare Part D claims for 38 beneficiaries, against an average of 689 among the 7,388 providers of this specialty who prescribed in Part D.

  1. Irma Alarcon Najera126
  2. Specialty average689

Most prescribed

  1. Piperacillin-Tazobactam26 claims
  2. Vancomycin Hcl20 claims
  3. Daptomycin18 claims
  4. Ceftriaxone11 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.

Industry payments in 2024: $593.96

9 payments; by number, the most common kind was food and beverage; the largest payer was Smith+Nephew, Inc. The 3,895 providers of this specialty with any payment received $4,362.19 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Irma Alarcon Najera$593.96
  2. Specialty average$4,362.19

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Capital Infectious Disease AssociatesSugar Land, TX

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

Irma A. Alarcon Najera among 487 infectious disease physician records in Massachusetts

Irma A. Alarcon Najera, M.D. is one of 487 infectious disease physician records with a practice address in Massachusetts. 69% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 63% of them.

  • NPI issued2008 · 63% of these records are older, 32% newer
  • In a Medicare fileYes · 69% of these records are
  • In the CMS Doctors and Clinicians fileYes · 61% of these records are
  • Graduated2004 · median 2003 among the 296 with a school on file
  • Record last updated2014 · 65% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RI0200X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Infectious Disease Physician providers in Massachusetts

There are 487 infectious disease physician records in Massachusetts.

The 8 infectious disease physician records with the nearest ZIP codes

  1. Davinderpal SinghBrockton, MA 023011265712236
  2. Tanit Phupitakphol, M.D.Brockton, MA 023021487005062
  3. Stephanie Marglin, M.D.Plymouth, MA 023601124110556
  4. Katherine Murray Leisure, MDPlymouth, MA 023601063474989
  5. Saarah ArshadRondolph, MA 023681659593887
  6. Noah BotonBoston, MA 022151033603758
  7. Michelle ChanBoston, MA 022151679004907
  8. Sara Dong, MDBoston, MA 022151023436946

Common questions

What is Irma A. Alarcon Najera, M.D.'s NPI number?

Irma A. Alarcon Najera, M.D.'s National Provider Identifier (NPI) is 1548416449, issued on Aug 11, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Irma A. Alarcon Najera, M.D. located?

The NPPES record lists a practice address at 830 Oak St, Brockton, MA, 02301. Phone: (508) 897-4794. Providers update this record themselves, so call before visiting.

How can I verify Irma A. Alarcon Najera, M.D.'s license?

NPPES lists Massachusetts license number 256890, 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 Irma A. Alarcon Najera, M.D. prescribe under Medicare Part D?

In 2024, Irma A. Alarcon Najera, M.D. had 126 Medicare Part D claims for 38 beneficiaries; the average among infectious disease physician prescribers was 689. 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.