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Internal Medicine

Mark S. Safalow, MD

Works at hospitals in Farmington, CT · Connecticut

Summary

Dr. Mark S. Safalow, MD is an internal medicine doctor at 263 Farmington Ave, Farmington, CT 06030. Phone: (860) 679-3692. Accepts Medicare assignment. In 2024, Mark S. Safalow had 236 Original Medicare patients and 512 services. NPI 1124019377. 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: 263 Farmington Ave, Farmington, CT 06030 · Directions
  • Phone: (860) 679‑3692
  • Medicare: Accepts Medicare assignment
  • Hospital: John Dempsey Hospital of the University of Connect
  • Group practice: University of Connecticut Health Center
  • Medical school: graduated 2000 (26 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Mark S. Safalow, 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 Mark S. Safalow accept Medicare assignment?
Yes. Medicare's clinician data says Mark S. Safalow 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 Mark S. Safalow see?
In 2024, CMS data shows 236 Original Medicare patients and 512 services for Mark S. Safalow. This counts Original Medicare only and measures volume, not quality.
What is Mark S. Safalow's NPI number?
1124019377. 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 Mark S. Safalow, 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 patients236
Services billed to Medicare512
Different services or procedures9
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)215 services
  2. Hospital discharge day management, more than 30 minutes (99239)95 services
  3. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)62 services
  4. Hospital discharge day management, 30 minutes or less (99238)58 services
  5. Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)42 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 cholesterol72%
  • Arthritis52%
  • Anxiety50%
  • Depression47%
  • Heart failure44%

Hospitals where Mark S. Safalow works

Medicare's Facility Affiliation Data lists Mark S. Safalow 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 Mark S. Safalow is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Mark S. Safalow as a member of this group (CMS data updated October 2, 2026).

  • University of Connecticut Health Center639 clinicians in the group

Specialties

Find other Internal Medicine doctors in Connecticut →

Other internal medicine doctors in Farmington

Clinicians with the same Medicare primary specialty in Farmington, CT — not a recommendation.

All internal medicine doctors in Farmington →

Other clinicians in University of Connecticut Health Center

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

Clinician information

CredentialMD
Graduation year2000 (26 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1124019377
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