Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Internal Medicine

Artemii Lazarev, MD

Works at hospitals in Michigan City, IN · Valparaiso, IN · Winfield, IL … · Indiana, Illinois

Summary

Dr. Artemii Lazarev, MD is an internal medicine doctor at 2505 Calumet Ave, Valparaiso, IN 46383. Phone: (219) 548-3843. Accepts Medicare assignment. In 2024, Artemii Lazarev had 72 Original Medicare patients and 141 services. NPI 1992478168. 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 Artemii Lazarev, 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 Artemii Lazarev accept Medicare assignment?
Yes. Medicare's clinician data says Artemii Lazarev 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 Artemii Lazarev see?
In 2024, CMS data shows 72 Original Medicare patients and 141 services for Artemii Lazarev. This counts Original Medicare only and measures volume, not quality.
What is Artemii Lazarev's NPI number?
1992478168. 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 Artemii Lazarev, 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 patients72
Services billed to Medicare141
Different services or procedures15
Participating Medicare providerYes
Average age of these patients73

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)60 services
  2. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)38 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 cholesterol75%
  • High blood pressure68%
  • Arthritis39%
  • Anxiety28%
  • Diabetes26%
  • Ischemic heart disease25%

Hospitals where Artemii Lazarev works

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

Group practices

Medicare enrollment lists Artemii Lazarev as a member of these groups (CMS data updated October 2, 2026).

  • Chesterton Physical Therapy Inc186 clinicians in the group
  • Porter Physician Services LLC99 clinicians in the group

Specialties

Find other Internal Medicine doctors in Indiana →

Other internal medicine doctors in Valparaiso

Clinicians with the same Medicare primary specialty in Valparaiso, IN — not a recommendation.

All internal medicine doctors in Valparaiso →

Other clinicians in Chesterton Physical Therapy Inc

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

Clinician information

CredentialMD
Graduation year2020 (6 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1992478168
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