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Infectious Disease

Cristian A. Speil, MD

Works at hospitals in Arlington Heights, IL · Illinois

Summary

Dr. Cristian A. Speil, MD is an infectious disease doctor at 880 W Central Rd, Suite 8100, Arlington Hts, IL 60005. Phone: (847) 255-5030. Accepts Medicare assignment. In 2024, Cristian A. Speil had 354 Original Medicare patients and 1,199 services. NPI 1346243730. 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: Infectious disease doctor (Medicare lists Infectious Disease)
  • Address: 880 W Central Rd, Suite 8100, Arlington Hts, IL 60005 · Directions
  • Phone: (847) 255‑5030
  • Medicare: Accepts Medicare assignment
  • Hospital: Northwest Community Hospital 1
  • Group practice: Northwest Suburban Medical Associates SC
  • Medical school: graduated 1994 (32 years since medical school)
  • Gender (as listed): Male
  • Telehealth: offered

From official Medicare data

This page shows what Medicare's official clinician data says about Cristian A. Speil, 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 Cristian A. Speil accept Medicare assignment?
Yes. Medicare's clinician data says Cristian A. Speil 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 Cristian A. Speil see?
In 2024, CMS data shows 354 Original Medicare patients and 1,199 services for Cristian A. Speil. This counts Original Medicare only and measures volume, not quality.
What is Cristian A. Speil's NPI number?
1346243730. 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 Cristian A. Speil, 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 patients354
Services billed to Medicare1,199
Different services or procedures11
Participating Medicare providerYes
Average age of these patients76

Most frequent services

  1. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)667 services
  2. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)208 services
  3. Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)100 services
  4. Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)75 services
  5. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)59 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%
  • Arthritis69%
  • Diabetes56%
  • Chronic kidney disease54%
  • Ischemic heart disease53%

Hospitals where Cristian A. Speil works

Medicare's Facility Affiliation Data lists Cristian A. Speil 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.

  • Northwest Community Hospital 1Arlington Heights, IL · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 140252

Practice locations

Addresses where Cristian A. Speil is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Cristian A. Speil as a member of this group (CMS data updated October 2, 2026).

  • Northwest Suburban Medical Associates SC7 clinicians in the group

Specialties

Find other Infectious Disease doctors in Illinois →

Other infectious disease doctors in Arlington Hts

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

All infectious disease doctors in Arlington Hts →

Other clinicians in Northwest Suburban Medical Associates SC

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

Clinician information

CredentialMD
Graduation year1994 (32 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1346243730
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