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Cardiac Surgery

Leonid A. Belyayev, MD

Works at hospitals in Baltimore, MD · Upper Marlboro, MD · Maryland

Summary

Leonid A. Belyayev, MD (Cardiac Surgery) is listed by Medicare at 2 hospitals in Baltimore, MD and Upper Marlboro, MD. NPI 1538554118. 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 Leonid A. Belyayev, 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

Cardiac SurgeryPrimary specialty
YesAccepts Medicare assignment
3Years since medical school (graduated 2023)
Harvard Medical SchoolMedical school
MaleGender (as listed)
University of Maryland Surgical Associates PAGroup practice

Quick answers

Which hospitals does Leonid A. Belyayev work at?
Medicare's official clinician data lists Leonid A. Belyayev at 2 hospitals: University of Maryland Medical Center and University of MD Capital Region Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Leonid A. Belyayev see patients?
Medicare's clinician data lists 5 practice locations, including Baltimore, MD, Largo, MD and Upper Marlboro, MD. Call before your visit to confirm the address.
What is Leonid A. Belyayev's specialty?
Medicare lists Cardiac Surgery as the primary specialty, and also General Surgery.
Does Leonid A. Belyayev accept Medicare assignment?
Yes. Medicare's clinician data says Leonid A. Belyayev 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 Leonid A. Belyayev?
(410) 328-5191, as listed in official Medicare / NPI Registry data.
What is Leonid A. Belyayev's NPI number?
1538554118. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Leonid A. Belyayev works

Medicare's Facility Affiliation Data lists Leonid A. Belyayev 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 Leonid A. Belyayev is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Leonid A. Belyayev as a member of this group (CMS data updated 2026-10-02).

  • University of Maryland Surgical Associates PA93 clinicians in the group

Specialties

Find other Cardiac Surgery doctors in Maryland →

Other cardiac surgeons in Baltimore

Clinicians with the same Medicare primary specialty in Baltimore, MD — not a recommendation.

All cardiac surgeons in Baltimore →

Clinician information

CredentialMD
Medical schoolHarvard Medical School
Graduation year2023
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1538554118
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