Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Internal Medicine

Margaret A. Russo, MD

Works at hospitals in Boston, MA · Northampton, MA · Massachusetts

Summary

Dr. Margaret A. Russo, MD is an internal medicine doctor at 30 Locust St, Northampton, MA 01060. Phone: (413) 582-2330. Accepts Medicare assignment. In 2024, Margaret A. Russo had 189 Original Medicare patients and 368 services. NPI 1558338533. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

From official Medicare data

This page shows what Medicare's official clinician data says about Margaret A. Russo, 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 Margaret A. Russo accept Medicare assignment?
Yes. Medicare's clinician data says Margaret A. Russo 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 Margaret A. Russo see?
In 2024, CMS data shows 189 Original Medicare patients and 368 services for Margaret A. Russo. This counts Original Medicare only and measures volume, not quality.
What is Margaret A. Russo's NPI number?
1558338533. 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 Margaret A. Russo, 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 patients189
Services billed to Medicare368
Different services or procedures14
Participating Medicare providerYes
Average age of these patients77

Most frequent services

  1. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)117 services
  2. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)99 services
  3. Hospital discharge day management, more than 30 minutes (99239)67 services
  4. Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)36 services
  5. Hospital discharge day management, 30 minutes or less (99238)19 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 blood pressure75%
  • High cholesterol70%
  • Arthritis57%
  • Anxiety49%
  • Depression41%
  • Chronic kidney disease40%

Hospitals where Margaret A. Russo works

Medicare's Facility Affiliation Data lists Margaret A. Russo at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

Practice locations

Addresses where Margaret A. Russo is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Margaret A. Russo as a member of this group (CMS data updated October 2, 2026).

  • Mass General Brigham Medical Group Western Massachusetts Inc291 clinicians in the group

Specialties

Find other Internal Medicine doctors in Massachusetts →

Other internal medicine doctors in Northampton

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

All internal medicine doctors in Northampton →

Other clinicians in Mass General Brigham Medical Group Western Massachusetts Inc

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

Clinician information

CredentialMD
Medical schoolAlbany Medical College Of Union University
Graduation year1991 (35 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1558338533
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. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians