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Internal Medicine

Tanya B. Lechtev, MD

Works at hospitals in Rhinelander, WI · Wausau, WI · Antigo, WI · Wisconsin

Summary

Dr. Tanya B. Lechtev, MD is an internal medicine doctor at 112 E 5th Ave, Antigo, WI 54409. Phone: (715) 623-2331. Accepts Medicare assignment. In 2024, Tanya B. Lechtev had 113 Original Medicare patients and 321 services. NPI 1245498005. 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 Tanya B. Lechtev, 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 Tanya B. Lechtev accept Medicare assignment?
Yes. Medicare's clinician data says Tanya B. Lechtev 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 Tanya B. Lechtev see?
In 2024, CMS data shows 113 Original Medicare patients and 321 services for Tanya B. Lechtev. This counts Original Medicare only and measures volume, not quality.
What is Tanya B. Lechtev's NPI number?
1245498005. 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 Tanya B. Lechtev, 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 patients113
Services billed to Medicare321
Different services or procedures14
Participating Medicare providerYes
Average age of these patients78

Most frequent services

  1. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)132 services
  2. Hospital discharge day management, 30 minutes or less (99238)48 services
  3. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)37 services
  4. Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)33 services
  5. Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)27 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%
  • Arthritis50%
  • Anxiety47%
  • Heart failure47%
  • Atrial fibrillation47%

Hospitals where Tanya B. Lechtev works

Medicare's Facility Affiliation Data lists Tanya B. Lechtev 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.

  • Aspirus Rhinelander HospitalRhinelander, WI · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 520019
  • Aspirus Wausau HospitalWausau, WI · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 520030
  • Langlade HospitalAntigo, WI · Critical Access Hospital · Emergency services: listed by Medicare · CCN 521350

Practice locations

Addresses where Tanya B. Lechtev is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Tanya B. Lechtev as a member of this group (CMS data updated October 2, 2026).

  • Langlade Hospital - Hotel Dieu of St Joseph of Antigo Wisconsin86 clinicians in the group

Specialties

Find other Internal Medicine doctors in Wisconsin →

Other internal medicine doctors in Antigo

Clinicians with the same Medicare primary specialty in Antigo, WI — not a recommendation.

All internal medicine doctors in Antigo →

Other clinicians in Langlade Hospital - Hotel Dieu of St Joseph of Antigo Wisconsin

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

Clinician information

CredentialMD
Graduation year1990 (36 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1245498005
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