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Internal Medicine

Tatiana Slavsky, MD

Sees patients in Boston, MA · Massachusetts

Summary

Dr. Tatiana Slavsky, MD is an internal medicine doctor at 147 Milk St, Boston, MA 02109. Accepts Medicare assignment. In 2024, Tatiana Slavsky had 20 Original Medicare patients and 55 services. NPI 1124060736. Source: CMS National Downloadable File, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Internal medicine doctor (Medicare lists Internal Medicine)
  • Address: 147 Milk St, Boston, MA 02109 · Directions (1 more location)
  • Medicare: Accepts Medicare assignment
  • Medical school: graduated 1978 (48 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Tatiana Slavsky, 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 Tatiana Slavsky accept Medicare assignment?
Yes. Medicare's clinician data says Tatiana Slavsky 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 Tatiana Slavsky see?
In 2024, CMS data shows 20 Original Medicare patients and 55 services for Tatiana Slavsky. This counts Original Medicare only and measures volume, not quality.
What is Tatiana Slavsky's NPI number?
1124060736. 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 Tatiana Slavsky, 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 patients20
Services billed to Medicare55
Different services or procedures20
Participating Medicare providerYes
Average age of these patients75

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 cholesterol65%

Practice locations

Addresses where Tatiana Slavsky is enrolled with Medicare (CMS data updated October 2, 2026).

  • 147 Milk StBoston, MA 02109
  • 147 Milk St, Provider Enrollment 9th FloorBoston, MA 02109

Specialties

Find other Internal Medicine doctors in Massachusetts →

Other internal medicine doctors in Boston

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

All internal medicine doctors in Boston →

Clinician information

CredentialMD
Graduation year1978 (48 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1124060736
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