Quick answers
- Does Nicholas W. Vryhof accept Medicare assignment?
- Yes. Medicare's clinician data says Nicholas W. Vryhof 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 Nicholas W. Vryhof see?
- In 2024, CMS data shows 388 Original Medicare patients and 446 services for Nicholas W. Vryhof. This counts Original Medicare only and measures volume, not quality.
- What is Nicholas W. Vryhof's NPI number?
- 1841727039. 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 Nicholas W. Vryhof, 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 patients | 388 |
|---|---|
| Services billed to Medicare | 446 |
| Different services or procedures | 41 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Emergency department visit with high level of medical decision making (99285)219 services
- Critical care, first 30-74 minutes (99291)70 services
- Emergency department visit with moderate level of medical decision making (99284)69 services
- Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)13 services
- Emergency department visit with low level of medical decision making (99283)12 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 cholesterol72%
- Arthritis49%
- Diabetes40%
- Chronic kidney disease40%
- Ischemic heart disease38%
Hospitals where Nicholas W. Vryhof works
Medicare's Facility Affiliation Data lists Nicholas W. Vryhof 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.
- UChicago Medicine AdventHealth BolingbrookBolingbrook, IL · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 140304
- UChicago Medicine AdventHealth GlenoaksGlendale Heights, IL · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 140292
- UChicago Medicine AdventHealth HinsdaleHinsdale, IL · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 140122
- UChicago Medicine AdventHealth La GrangeLa Grange, IL · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 140065
- West Suburban Medical CenterOak Park, IL · Acute Care Hospital · Medicare rating: 1 of 5 stars · Emergency services: not listed by Medicare · CCN 140049
Practice locations
Addresses where Nicholas W. Vryhof is enrolled with Medicare (CMS data updated October 2, 2026).
- 1333 W Belmont AveChicago, IL 60657
- 3 Eire CtOak Park, IL 60302 (708) 383‑6200
- 635 N Fairbanks Ct, Fl 1Chicago, IL 60611 (312) 472‑3173
- 675 N Saint Clair StChicago, IL 60611
- 675 N St ClairChicago, IL 60611
Group practices
Medicare enrollment lists Nicholas W. Vryhof as a member of these groups (CMS data updated October 2, 2026).
- Northwestern Medical Faculty Foundation4,503 clinicians in the group
- Illinois Emergency Medicine Specialists LLC42 clinicians in the group
Specialties
- Emergency Medicineprimary
Other emergency medicine doctors in Chicago
Clinicians with the same Medicare primary specialty in Chicago, IL — not a recommendation.
Other clinicians in Northwestern Medical Faculty Foundation
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2017 (9 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1841727039 |
| Corrections | Report 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians