NPPES file of Aug 9, 2026

Anastasia-Stefania Alexopoulos

Endocrinology, Diabetes & Metabolism Physician · Boston, MA

Anastasia-Stefania Alexopoulos is an endocrinology, diabetes & metabolism physician with a practice address in Boston, Massachusetts, and NPI 1134560543, issued on Jul 13, 2013. Check the license 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
1134560543
Name
Anastasia-Stefania Alexopoulos
Primary taxonomy
Endocrinology, Diabetes & Metabolism Physician 207RE0101X
License numbers
2018-00310 NC
075126 GA
Self-reported in NPPES; status is on the state search
Practice location
221 Longwood Ave, Boston, MA 02115
Phone
(617) 525-8867
Enumerated
Jul 13, 2013
Record last updated
Feb 24, 2025
Medicare enrollment
Enrolled (PECOS I20200807001594); 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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8 nearest endocrinology, diabetes & metabolism physician records → All 522 in Massachusetts → Look up another NPI →

Also registered at 221 Longwood Ave

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

  1. Gail Adler, MD PHDEndocrinology, Diabetes & Metabolism Physician1780675280
  2. Sara Ahmadi, M.D.Endocrinology, Diabetes & Metabolism Physician1700082617
  3. Abdullah Alajaji, MDDermatology Physician1356698351
  4. Bader AlharbiDermatology Physician1932021771
  5. Abby Altman, PHDCounseling Psychologist1518220433
  6. Rebecca Amariglio, PHDClinical Neuropsychologist1437315462

Verify Anastasia-Stefania Alexopoulos in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMassachusetts Board of Registration in MedicineCheck 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. Duke Health Integrated Practice IncDurham, NC

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

Anastasia-Stefania Alexopoulos among 522 endocrinology, diabetes & metabolism physician records in Massachusetts

Anastasia-Stefania Alexopoulos is one of 522 endocrinology, diabetes & metabolism 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 2013, is newer than 75% of them.

  • NPI issued2013 · 75% of these records are older, 20% newer
  • In a Medicare fileYes · 82% of these records are
  • In the CMS Doctors and Clinicians fileYes · 72% of these records are
  • Graduated2012 · median 2002 among the 378 with a school on file
  • Record last updated2025 · 60% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RE0101X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Endocrinology, Diabetes & Metabolism Physician providers in Massachusetts

There are 522 endocrinology, diabetes & metabolism physician records in Massachusetts.

All 522 in Massachusetts → Every provider in Boston → Endocrinology, Diabetes & Metabolism Physician nationwide →

The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes

  1. Gail Adler, MD PHDBoston, MA 021151780675280
  2. Shehzad Basaria, MDBoston, MA 021151699730101
  3. Edward Brown, MDBoston, MA 021151871550137
  4. Margo Hudson, MDBoston, MA 021151922065242
  5. Ursula Kaiser, MDBoston, MA 021151053377374
  6. Nikheel Kolatkar, M.D.Boston, MA 021151396748463
  7. P Larsen, MDBoston, MA 021151700842952
  8. Meryl Leboff, MDBoston, MA 021151235106030

Common questions

What is Anastasia-Stefania Alexopoulos's NPI number?

Anastasia-Stefania Alexopoulos's National Provider Identifier (NPI) is 1134560543, issued on Jul 13, 2013. An NPI identifies a provider in billing; it is not a license.

Where is Anastasia-Stefania Alexopoulos located?

The NPPES record lists a practice address at 221 Longwood Ave, Boston, MA, 02115. Phone: (617) 525-8867. Providers update this record themselves, so call before visiting.

How can I verify Anastasia-Stefania Alexopoulos's license?

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.

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.