NPPES file of Aug 9, 2026

Peter Andrew Ceglowski, MD

Internal Medicine Physician · Cambridge, MA

Peter Andrew Ceglowski, MD is an internal medicine physician with a practice address in Cambridge, Massachusetts, and NPI 1831849884, issued on Mar 24, 2022. Check the license (Massachusetts 1025202, 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
1831849884
Name
Peter Andrew Ceglowski
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
1025202 MA
Self-reported in NPPES; status is on the state search
Practice location
330 Mount Auburn St, Cambridge, MA 02138
Phone
(617) 492-3500
Enumerated
Mar 24, 2022
Record last updated
Aug 19, 2025
Medicare enrollment
Enrolled (PECOS I20250916001073); may accept 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 330 Mount Auburn St

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

  1. Zahra Abdul GhafoorInternal Medicine Physician1518375674
  2. Ellen Abele, LICSWClinical Social Worker1174696892
  3. Ritika Abhyankar, MDStudent in an Organized Health Care Education/Training Program1508551219
  4. Anthony Abner, MDRadiation Oncology Physician1487629127
  5. Susan Abookire, MDInternal Medicine Physician1407859762
  6. Samer Abujaber, MB BCH BAOInternal Medicine Physician1497137558

Verify Peter Andrew Ceglowski 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 1025202
    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

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89% fewer Medicare Part D claims than the average internal medicine physician in 2024

363 Medicare Part D claims for 121 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims. 18 claims were for opioids.

  1. Peter Ceglowski363
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium36 claims
  2. Metoprolol Succinate26 claims
  3. Lisinopril19 claims
  4. Eliquis14 claims
  5. Pantoprazole Sodium13 claims
  6. Rosuvastatin Calcium13 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.

Peter Andrew Ceglowski among 6,825 internal medicine physician records in Massachusetts

Peter Andrew Ceglowski, MD is one of 6,825 internal medicine physician records with a practice address in Massachusetts. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 92% of them.

  • NPI issued2022 · 92% of these records are older, 5% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 60% of these records are
  • Graduated2021 · median 2004 among the 4,103 with a school on file
  • Record last updated2025 · 64% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

300 internal medicine physician records list a practice address in Cambridge

They are 300 of the 5,145 NPPES records with a practice address in Cambridge, and 6,825 internal medicine physician records in Massachusetts.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Susan Abookire, MDCambridge, MA 021381407859762
  2. Matthew Carmody, MDCambridge, MA 021381184624488
  3. Mark Friedman, MDCambridge, MA 021381760482921
  4. Eva Gassiraro, MDCambridge, MA 021381598762833
  5. Beth Goldman, MDCambridge, MA 021381457358798
  6. Charles Hatem, MDCambridge, MA 021381528065877
  7. David Hudacek, MDCambridge, MA 021381992707269
  8. Janine McCauley, MDCambridge, MA 021381487656617

Common questions

What is Peter Andrew Ceglowski, MD's NPI number?

Peter Andrew Ceglowski, MD's National Provider Identifier (NPI) is 1831849884, issued on Mar 24, 2022. An NPI identifies a provider in billing; it is not a license.

Where is Peter Andrew Ceglowski, MD located?

The NPPES record lists a practice address at 330 Mount Auburn St, Cambridge, MA, 02138. Phone: (617) 492-3500. Providers update this record themselves, so call before visiting.

How can I verify Peter Andrew Ceglowski, MD's license?

NPPES lists Massachusetts license number 1025202, 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 Peter Andrew Ceglowski, MD prescribe under Medicare Part D?

In 2024, Peter Andrew Ceglowski, MD had 363 Medicare Part D claims for 121 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.