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Nephrology

Oleksandr Kovalchuk

Works at hospitals in Ocala, FL · Crystal River, FL · Florida

Summary

Oleksandr Kovalchuk (Nephrology) is listed by Medicare at 3 hospitals in Ocala, FL and Crystal River, FL. NPI 1437390788. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Oleksandr Kovalchuk, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

NephrologyPrimary specialty
YesAccepts Medicare assignment
25Years since medical school (graduated 2001)
MaleGender (as listed)
Ocala Kidney Group IncGroup practice

Quick answers

Which hospitals does Oleksandr Kovalchuk work at?
Medicare's official clinician data lists Oleksandr Kovalchuk at 3 hospitals: AdventHealth Ocala, Marion Communtiy Hospital and Tampa General Hospital Crystal River. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Oleksandr Kovalchuk see patients?
Medicare's clinician data lists 2 practice locations, including Ocala, FL. Call before your visit to confirm the address.
What is Oleksandr Kovalchuk's specialty?
Medicare lists Nephrology as the primary specialty, and also Internal Medicine.
Does Oleksandr Kovalchuk accept Medicare assignment?
Yes. Medicare's clinician data says Oleksandr Kovalchuk accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
What is the phone number for Oleksandr Kovalchuk?
(352) 622-4231, as listed in official Medicare / NPI Registry data.
What is Oleksandr Kovalchuk's NPI number?
1437390788. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Oleksandr Kovalchuk works

Medicare's Facility Affiliation Data lists Oleksandr Kovalchuk at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where Oleksandr Kovalchuk is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Oleksandr Kovalchuk as a member of this group (CMS data updated 2026-10-02).

  • Ocala Kidney Group Inc13 clinicians in the group

Specialties

Find other Nephrology doctors in Florida →

Other nephrologists in Ocala

Clinicians with the same Medicare primary specialty in Ocala, FL — not a recommendation.

All nephrologists in Ocala →

Clinician information

Graduation year2001
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1437390788
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 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians