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Internal Medicine

Krystyna H. Szewczyk Szczech, MD

Works at hospitals in Hackensack, NJ · Paterson, NJ · Passaic, NJ · New Jersey

Summary

Dr. Krystyna H. Szewczyk Szczech, MD is an internal medicine doctor at 1033 Clifton Ave, Suite 210, Clifton, NJ 07013. Phone: (973) 473-4400. Accepts Medicare assignment. In 2024, Krystyna H. Szewczyk Szczech had 195 Original Medicare patients and 1,369 services. NPI 1871532895. 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 Krystyna H. Szewczyk Szczech, 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 Krystyna H. Szewczyk Szczech accept Medicare assignment?
Yes. Medicare's clinician data says Krystyna H. Szewczyk Szczech 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 Krystyna H. Szewczyk Szczech see?
In 2024, CMS data shows 195 Original Medicare patients and 1,369 services for Krystyna H. Szewczyk Szczech. This counts Original Medicare only and measures volume, not quality.
What is Krystyna H. Szewczyk Szczech's NPI number?
1871532895. 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 Krystyna H. Szewczyk Szczech, 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 patients195
Services billed to Medicare1,369
Different services or procedures50
Participating Medicare providerYes
Average age of these patients74

Most frequent services

  1. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)371 services
  2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)332 services
  3. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)128 services
  4. Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month (99490)82 services
  5. Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)82 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 cholesterol75%
  • Arthritis47%
  • Diabetes45%
  • Ischemic heart disease37%
  • Anxiety26%

Hospitals where Krystyna H. Szewczyk Szczech works

Medicare's Facility Affiliation Data lists Krystyna H. Szewczyk Szczech 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 Krystyna H. Szewczyk Szczech is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Krystyna H. Szewczyk Szczech as a member of this group (CMS data updated October 2, 2026).

  • St Marys General Medical Group PC72 clinicians in the group

Specialties

Find other Internal Medicine doctors in New Jersey →

Other internal medicine doctors in Clifton

Clinicians with the same Medicare primary specialty in Clifton, NJ — not a recommendation.

All internal medicine doctors in Clifton →

Other clinicians in St Marys General Medical Group PC

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

Clinician information

CredentialMD
Graduation year1980 (46 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1871532895
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