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Gastroenterology

Charles T. Buzanis, MD

Sees patients in Needham, MA · Boston, MA · Burlington, MA … · Massachusetts

Summary

Dr. Charles T. Buzanis, MD is a gastroenterologist at 100 2nd Ave, Needham, MA 02494. Phone: (781) 726-4800. Accepts Medicare assignment. In 2024, Charles T. Buzanis had 363 Original Medicare patients and 5,135 services. NPI 1487764965. Source: CMS National Downloadable File, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Gastroenterologist (Medicare lists Gastroenterology)
  • Address: 100 2nd Ave, Needham, MA 02494 · Directions (3 more locations)
  • Phone: (781) 726‑4800
  • Medicare: Accepts Medicare assignment
  • Group practice: Atrius Health Inc
  • Medical school: Un Of California, Irvine, College Of Medicine · graduated 1988 (38 years since medical school)
  • Gender (as listed): Female
  • Telehealth: offered

From official Medicare data

This page shows what Medicare's official clinician data says about Charles T. Buzanis, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Charles T. Buzanis accept Medicare assignment?
Yes. Medicare's clinician data says Charles T. Buzanis accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Charles T. Buzanis see?
In 2024, CMS data shows 363 Original Medicare patients and 5,135 services for Charles T. Buzanis. This counts Original Medicare only and measures volume, not quality.
What is Charles T. Buzanis's NPI number?
1487764965. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Charles T. Buzanis, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients363
Services billed to Medicare5,135
Different services or procedures68
Participating Medicare providerYes
Average age of these patients72

Most frequent services

  1. Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)220 services
  2. Biopsy of large bowel using a flexible endoscope (45380)219 services
  3. Colorectal cancer screening; colonoscopy on individual at high risk (G0105)44 services
  4. Blood glucose (sugar) measurement using reagent strip (82948)40 services
  5. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)36 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High cholesterol68%
  • High blood pressure53%
  • Arthritis25%
  • Anxiety19%
  • Osteoporosis19%
  • Diabetes18%

Practice locations

Addresses where Charles T. Buzanis is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Charles T. Buzanis as a member of this group (CMS data updated October 2, 2026).

  • Atrius Health Inc1,222 clinicians in the group

Specialties

Find other Gastroenterology doctors in Massachusetts →

Other gastroenterologists in Needham

Clinicians with the same Medicare primary specialty in Needham, MA — not a recommendation.

All gastroenterologists in Needham →

Other clinicians in Atrius Health Inc

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Medical schoolUn Of California, Irvine, College Of Medicine
Graduation year1988 (38 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1487764965
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  2. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians