NPPES file of Aug 9, 2026

Alejandro Contreras, M.D.

Anesthesiology Physician · Springfield, MA

Alejandro Contreras, M.D. is an anesthesiology physician with a practice address in Springfield, Massachusetts, and NPI 1255725792, issued on Mar 23, 2015. Check the license (Massachusetts 295155, 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 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1255725792
Name
Alejandro Contreras
Credential
M.D.
Primary taxonomy
Anesthesiology Physician 207L00000X
License number
295155 MA
Self-reported in NPPES; status is on the state search
Practice location
Baystate Medical Center 759 Chestnut St, Springfield, MA 01199
Phone
(413) 794-0000
Enumerated
Mar 23, 2015
Record last updated
Sep 23, 2022
Medicare enrollment
Enrolled (PECOS I20221201000692); 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.
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Also registered at Baystate Medical Center 759 Chestnut St

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

  1. Adam AdamidisStudent in an Organized Health Care Education/Training Program1962899641
  2. Hisham Alomar, M.DStudent in an Organized Health Care Education/Training Program1538591094
  3. Kevin Cruz Lopez, M.D.Student in an Organized Health Care Education/Training Program1770115826
  4. Michael Dalla Betta, D.O.Emergency Medicine Physician1801213285
  5. Paige Mastalerz, MDStudent in an Organized Health Care Education/Training Program1487358461
  6. Akeel Merchant, M.D.Anesthesiology Physician1558628735

Verify Alejandro Contreras 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 295155
    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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Bills Medicare through one group practice

  1. Baystate Medical Practices IncGreenfield, MA

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

Alejandro Contreras among 2,089 anesthesiology physician records in Massachusetts

Alejandro Contreras, M.D. is one of 2,089 anesthesiology physician records with a practice address in Massachusetts. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 70% of them.

  • NPI issued2015 · 70% of these records are older, 27% newer
  • In a Medicare fileYes · 73% of these records are
  • In the CMS Doctors and Clinicians fileYes · 71% of these records are
  • Graduated2015 · median 2008 among the 1,472 with a school on file
  • Record last updated2022 · 54% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207L00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

74 anesthesiology physician records list a practice address in Springfield

They are 74 of the 8,553 NPPES records with a practice address in Springfield, and 2,089 anesthesiology physician records in Massachusetts.

The 8 anesthesiology physician records with the nearest ZIP codes

  1. Nida Aftab, MDSpringfield, MA 011991508391376
  2. Jessica Bland, MD MSPTSpringfield, MA 011991164556130
  3. William Bower, M.D.Springfield, MA 011991255776829
  4. Ruth Ebert, MDSpringfield, MA 011991417342171
  5. Pranjali KainkaryamSpringfield, MA 011991952544546
  6. Mary Kraft, MDSpringfield, MA 011991417947243
  7. Samyukta Malladi, DOSpringfield, MA 011991730603630
  8. Brian MasonSpringfield, MA 011991508251463

Common questions

What is Alejandro Contreras, M.D.'s NPI number?

Alejandro Contreras, M.D.'s National Provider Identifier (NPI) is 1255725792, issued on Mar 23, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Alejandro Contreras, M.D. located?

The NPPES record lists a practice address at Baystate Medical Center 759 Chestnut St, Springfield, MA, 01199. Phone: (413) 794-0000. Providers update this record themselves, so call before visiting.

How can I verify Alejandro Contreras, M.D.'s license?

NPPES lists Massachusetts license number 295155, 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. 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.