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Internal Medicine

Edward M. Kowaloff, MD

Works at hospitals in Cambridge, MA · Winchester, MA · Massachusetts

Summary

Dr. Edward M. Kowaloff, MD is an internal medicine doctor at 57 Bedford St, Suite 130, Lexington, MA 02420. Phone: (781) 862-7500. Accepts Medicare assignment. In 2024, Edward M. Kowaloff had 107 Original Medicare patients and 7,174 services. NPI 1437147071. 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.

  • Specialty: Internal medicine doctor (Medicare lists Internal Medicine)
  • Address: 57 Bedford St, Suite 130, Lexington, MA 02420 · Directions (1 more location)
  • Phone: (781) 862‑7500
  • Medicare: Accepts Medicare assignment
  • Hospitals: Mount Auburn Hospital, Winchester Hospital
  • Group practice: Mount Auburn Professional Services Inc
  • Medical school: Washington University School Of Medicine · graduated 1971 (55 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Edward M. Kowaloff, 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 Edward M. Kowaloff accept Medicare assignment?
Yes. Medicare's clinician data says Edward M. Kowaloff 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 Edward M. Kowaloff see?
In 2024, CMS data shows 107 Original Medicare patients and 7,174 services for Edward M. Kowaloff. This counts Original Medicare only and measures volume, not quality.
What is Edward M. Kowaloff's NPI number?
1437147071. 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 Edward M. Kowaloff, 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 patients107
Services billed to Medicare7,174
Different services or procedures34
Participating Medicare providerYes
Average age of these patients74

Most frequent services

  1. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)111 services
  2. Insertion of needle into vein for collection of blood sample (36415)109 services
  3. Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)93 services
  4. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)61 services
  5. Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)41 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 cholesterol63%
  • High blood pressure60%
  • Arthritis41%
  • Anxiety25%
  • Diabetes23%
  • Ischemic heart disease21%

Hospitals where Edward M. Kowaloff works

Medicare's Facility Affiliation Data lists Edward M. Kowaloff 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.

  • Mount Auburn HospitalCambridge, MA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 220002
  • Winchester HospitalWinchester, MA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 220105

Practice locations

Addresses where Edward M. Kowaloff is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Edward M. Kowaloff as a member of this group (CMS data updated October 2, 2026).

  • Mount Auburn Professional Services Inc231 clinicians in the group

Specialties

Find other Internal Medicine doctors in Massachusetts →

Other internal medicine doctors in Lexington

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

All internal medicine doctors in Lexington →

Other clinicians in Mount Auburn Professional Services Inc

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

Clinician information

CredentialMD
Medical schoolWashington University School Of Medicine
Graduation year1971 (55 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1437147071
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