Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

General Practice

Reyna I. Lajara, MD

Sees patients in Lakeland, FL · Florida

Summary

Dr. Reyna I. Lajara, MD is a general practitioner at 1045 E County Rd, 540a, Lakeland, FL 33813. Phone: (863) 644-3585. Accepts Medicare assignment. In 2024, Reyna I. Lajara had 25 Original Medicare patients and 47 services. NPI 1366503583. Source: CMS National Downloadable File, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: General practitioner (Medicare lists General Practice)
  • Address: 1045 E County Rd, 540a, Lakeland, FL 33813 · Directions (1 more location)
  • Phone: (863) 644‑3585
  • Medicare: Accepts Medicare assignment
  • Group practice: Advanced Internal Medicine Care, PA
  • Medical school: graduated 1996 (30 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Reyna I. Lajara, 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 Reyna I. Lajara accept Medicare assignment?
Yes. Medicare's clinician data says Reyna I. Lajara 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 Reyna I. Lajara see?
In 2024, CMS data shows 25 Original Medicare patients and 47 services for Reyna I. Lajara. This counts Original Medicare only and measures volume, not quality.
What is Reyna I. Lajara's NPI number?
1366503583. 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 Reyna I. Lajara, 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 patients25
Services billed to Medicare47
Different services or procedures4
Participating Medicare providerYes
Average age of these patients69

Most frequent services

  1. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)26 services
  2. Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)11 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%

Practice locations

Addresses where Reyna I. Lajara is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Reyna I. Lajara as a member of this group (CMS data updated October 2, 2026).

  • Advanced Internal Medicine Care, PA10 clinicians in the group

Specialties

Find other General Practice doctors in Florida →

Other general practitioners in Lakeland

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

All general practitioners in Lakeland →

Other clinicians in Advanced Internal Medicine Care, PA

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

Clinician information

CredentialMD
Graduation year1996 (30 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1366503583
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. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  2. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  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