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Dermatology

Katalin Kovalszki, MD

Works at hospitals in W Concord, MA · Massachusetts

Summary

Dr. Katalin Kovalszki, MD is a dermatologist at 133 Littleton Rd, Suite 205, Westford, MA 01886. Phone: (978) 371-7010. Accepts Medicare assignment. In 2024, Katalin Kovalszki had 786 Original Medicare patients and 3,402 services. NPI 1386761039. 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: Dermatologist (Medicare lists Dermatology)
  • Address: 133 Littleton Rd, Suite 205, Westford, MA 01886 · Directions (1 more location)
  • Phone: (978) 371‑7010
  • Medicare: Accepts Medicare assignment
  • Hospital: Emerson Hospital -
  • Group practice: Adult and Pediatric Dermatology PC
  • Medical school: University Of Michigan Medical School · graduated 2005 (21 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Katalin Kovalszki, 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 Katalin Kovalszki accept Medicare assignment?
Yes. Medicare's clinician data says Katalin Kovalszki 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 Katalin Kovalszki see?
In 2024, CMS data shows 786 Original Medicare patients and 3,402 services for Katalin Kovalszki. This counts Original Medicare only and measures volume, not quality.
What is Katalin Kovalszki's NPI number?
1386761039. 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 Katalin Kovalszki, 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 patients786
Services billed to Medicare3,402
Different services or procedures47
Participating Medicare providerYes
Average age of these patients74

Most frequent services

  1. Destruction of precancer skin growth, 2-14 growths (17003)1,257 services
  2. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)589 services
  3. Destruction of precancer skin growth, 1 growth (17000)407 services
  4. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)282 services
  5. Destruction of skin growth, 1-14 growths (17110)241 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 cholesterol73%
  • High blood pressure62%
  • Arthritis42%
  • Anxiety24%
  • Ischemic heart disease20%
  • Chronic kidney disease19%

Hospitals where Katalin Kovalszki works

Medicare's Facility Affiliation Data lists Katalin Kovalszki 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.

  • Emerson Hospital -W Concord, MA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 220084

Practice locations

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

Group practices

Medicare enrollment lists Katalin Kovalszki as a member of this group (CMS data updated October 2, 2026).

  • Adult and Pediatric Dermatology PC40 clinicians in the group

Specialties

Find other Dermatology doctors in Massachusetts →

Other dermatologists in Westford

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

All dermatologists in Westford →

Other clinicians in Adult and Pediatric Dermatology PC

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

Clinician information

CredentialMD
Medical schoolUniversity Of Michigan Medical School
Graduation year2005 (21 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1386761039
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