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

Family Practice

Reinhold Llerena, MD

Works at hospitals in Elk Grove Village, IL · McHenry, IL · Hoffman Estates, IL · Illinois

Summary

Dr. Reinhold Llerena, MD is a family doctor at 1786 Moon Lake Blvd, Hoffman Est, IL 60194. Phone: (847) 755-8208. Accepts Medicare assignment. In 2024, Reinhold Llerena had 80 Original Medicare patients and 279 services. NPI 1053349720. 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 Reinhold Llerena, 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 Reinhold Llerena accept Medicare assignment?
Yes. Medicare's clinician data says Reinhold Llerena 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 Reinhold Llerena see?
In 2024, CMS data shows 80 Original Medicare patients and 279 services for Reinhold Llerena. This counts Original Medicare only and measures volume, not quality.
What is Reinhold Llerena's NPI number?
1053349720. 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 Reinhold Llerena, 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 patients80
Services billed to Medicare279
Different services or procedures18
Participating Medicare providerYes
Average age of these patients72

Most frequent services

  1. Insertion of needle into vein for collection of blood sample (36415)73 services
  2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)70 services
  3. Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)45 services
  4. Influenza vaccine split virus, preservative free (90662)15 services
  5. Administration of influenza virus vaccine (G0008)14 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 pressure65%
  • High cholesterol65%
  • Arthritis25%
  • Diabetes24%
  • Ischemic heart disease19%
  • Anxiety18%

Hospitals where Reinhold Llerena works

Medicare's Facility Affiliation Data lists Reinhold Llerena 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 Reinhold Llerena is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Reinhold Llerena as a member of this group (CMS data updated October 2, 2026).

  • Bonaventure Medical Foundation LLC167 clinicians in the group

Specialties

Find other Family Practice doctors in Illinois →

Other family doctors in Hoffman Est

Clinicians with the same Medicare primary specialty in Hoffman Est, IL — not a recommendation.

All family doctors in Hoffman Est →

Other clinicians in Bonaventure Medical Foundation LLC

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

Clinician information

CredentialMD
Medical schoolUniversity Of Illinois College Of Med (chi/peor/rock/chm-Urb)
Graduation year1995 (31 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1053349720
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