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Hospitalist

Marius Laurinaitis, MD

Works at hospitals in Jacksonville, FL · Jacksonville Beach, FL · Savannah, GA … · Florida, Georgia

Summary

Dr. Marius Laurinaitis, MD is a hospitalist at 4201 Belfort Rd, Jacksonville, FL 32216. Phone: (904) 296-3700. Accepts Medicare assignment. In 2024, Marius Laurinaitis had 350 Original Medicare patients and 749 services. NPI 1639174212. 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 Marius Laurinaitis, 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 Marius Laurinaitis accept Medicare assignment?
Yes. Medicare's clinician data says Marius Laurinaitis 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 Marius Laurinaitis see?
In 2024, CMS data shows 350 Original Medicare patients and 749 services for Marius Laurinaitis. This counts Original Medicare only and measures volume, not quality.
What is Marius Laurinaitis's NPI number?
1639174212. 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 Marius Laurinaitis, 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 patients350
Services billed to Medicare749
Different services or procedures7
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)357 services
  2. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)183 services
  3. Hospital discharge day management, more than 30 minutes (99239)126 services
  4. Hospital discharge day management, 30 minutes or less (99238)36 services
  5. Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)24 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%
  • Arthritis63%
  • Ischemic heart disease57%
  • Chronic kidney disease51%
  • Heart failure49%

Hospitals where Marius Laurinaitis works

Medicare's Facility Affiliation Data lists Marius Laurinaitis 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 Marius Laurinaitis is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 6; the Medicare profile lists all.

Group practices

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

  • Baptist Primary Care Inc471 clinicians in the group
  • Tift Regional Health System Inc296 clinicians in the group
  • Cogent Healthcare of Georgia PC249 clinicians in the group
  • Hospital Medicine Services of Ga LLC101 clinicians in the group
  • Hni Hospital Services of Florida LLC39 clinicians in the group

Specialties

Find other Hospitalist doctors in Florida →

Other hospitalists in Jacksonville

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

All hospitalists in Jacksonville →

Other clinicians in Baptist Primary Care Inc

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

Clinician information

CredentialMD
Graduation year1992 (34 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1639174212
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