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Family Practice

Alina V. Merrill, DO

Works at hospitals in Maywood, IL · Berwyn, IL · Illinois

Summary

Dr. Alina V. Merrill, DO is a family doctor at 3231 Euclid Ave, Suite 407, Berwyn, IL 60402. Phone: (708) 783-7430. Accepts Medicare assignment. In 2024, Alina V. Merrill had 99 Original Medicare patients and 190 services. NPI 1710909890. 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.

  • Specialty: Family doctor (Medicare lists Family Practice)
  • Address: 3231 Euclid Ave, Suite 407, Berwyn, IL 60402 · Directions
  • Phone: (708) 783‑7430
  • Medicare: Accepts Medicare assignment
  • Hospitals: Loyola University Medical Center, MacNeal Hospital
  • Group practice: Loyola Medical Group LLC
  • Medical school: Midwestern University, Chicago College Of Osteopathic Med · graduated 2002 (24 years since medical school)
  • Gender (as listed): Female
  • Telehealth: offered

From official Medicare data

This page shows what Medicare's official clinician data says about Alina V. Merrill, 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 Alina V. Merrill accept Medicare assignment?
Yes. Medicare's clinician data says Alina V. Merrill 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 Alina V. Merrill see?
In 2024, CMS data shows 99 Original Medicare patients and 190 services for Alina V. Merrill. This counts Original Medicare only and measures volume, not quality.
What is Alina V. Merrill's NPI number?
1710909890. 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 Alina V. Merrill, 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 patients99
Services billed to Medicare190
Different services or procedures33
Participating Medicare providerYes
Average age of these patients73

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)60 services
  2. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)30 services
  3. Hospital discharge day management, more than 30 minutes (99239)12 services
  4. 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 cholesterol73%
  • Arthritis55%
  • Diabetes52%
  • Ischemic heart disease31%
  • Chronic kidney disease30%

Hospitals where Alina V. Merrill works

Medicare's Facility Affiliation Data lists Alina V. Merrill 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.

  • Loyola University Medical CenterMaywood, IL · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 140276
  • MacNeal HospitalBerwyn, IL · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 140054

Practice locations

Addresses where Alina V. Merrill is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Alina V. Merrill as a member of this group (CMS data updated October 2, 2026).

  • Loyola Medical Group LLC127 clinicians in the group

Specialties

Find other Family Practice doctors in Illinois →

Other family doctors in Berwyn

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

All family doctors in Berwyn →

Other clinicians in Loyola Medical Group LLC

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

Clinician information

CredentialDO
Medical schoolMidwestern University, Chicago College Of Osteopathic Med
Graduation year2002 (24 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1710909890
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