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Pathology

Natalia V. Markelova, MD

Works at hospitals in Wauseon, OH · Napoleon, OH · Toledo, OH … · Ohio

Summary

Dr. Natalia V. Markelova, MD is a pathologist at 725 S Shoop Ave, Wauseon, OH 43567. Phone: (419) 335-2015. Accepts Medicare assignment. In 2024, Natalia V. Markelova had 479 Original Medicare patients and 1,660 services. NPI 1437100286. 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 Natalia V. Markelova, 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 Natalia V. Markelova accept Medicare assignment?
Yes. Medicare's clinician data says Natalia V. Markelova 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 Natalia V. Markelova see?
In 2024, CMS data shows 479 Original Medicare patients and 1,660 services for Natalia V. Markelova. This counts Original Medicare only and measures volume, not quality.
What is Natalia V. Markelova's NPI number?
1437100286. 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 Natalia V. Markelova, 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 patients479
Services billed to Medicare1,660
Different services or procedures31
Participating Medicare providerYes
Average age of these patients75

Most frequent services

  1. Pathology examination of tissue using a microscope, intermediate complexity (88305)471 services
  2. Special stained specimen slides to examine tissue, each additional procedure (88341)370 services
  3. Special stained specimen slides to examine tissue, each multiplex procedure (88344)127 services
  4. Special stained specimen slides to examine tissue, initial procedure (88342)118 services
  5. Microscopic genetic analysis of tumor, manual (88360)94 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 cholesterol72%
  • Arthritis58%
  • Diabetes33%
  • Anxiety26%
  • Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)26%

Hospitals where Natalia V. Markelova works

Medicare's Facility Affiliation Data lists Natalia V. Markelova 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.

  • Fulton County Health CenterWauseon, OH · Critical Access Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 361333
  • Henry County Hospital, IncNapoleon, OH · Critical Access Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 361309
  • ProMedica Toledo HospitalToledo, OH · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 360068
  • Southern Ohio Medical CenterPortsmouth, OH · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 360008
  • Wood County HospitalBowling Green, OH · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 360029

Practice locations

Addresses where Natalia V. Markelova is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Natalia V. Markelova as a member of this group (CMS data updated October 2, 2026).

  • Associated Pathologists Inc2 clinicians in the group

Specialties

Find other Pathology doctors in Ohio →

Other pathologists in Ohio

Clinicians with the same Medicare primary specialty in Ohio — not a recommendation.

All pathologists in Ohio →

Other clinicians in Associated Pathologists Inc

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

Clinician information

CredentialMD
Graduation year1987 (39 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1437100286
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