Quick answers
- Does Fritz Mesilien accept Medicare assignment?
- Medicare's clinician data says Fritz Mesilien may accept Medicare assignment (as of October 2, 2026). Ask the office whether they accept it for your visit.
- How many Medicare patients does Fritz Mesilien see?
- In 2024, CMS data shows 154 Original Medicare patients and 170 services for Fritz Mesilien. This counts Original Medicare only and measures volume, not quality.
- What is Fritz Mesilien's NPI number?
- 1073914511. 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 Fritz Mesilien, 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 | 154 |
|---|---|
| Services billed to Medicare | 170 |
| Different services or procedures | 41 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Anesthesia for lens surgery (00142)32 services
- Anesthesia for other procedure on large bowel using an endoscope (00811)25 services
- Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)19 services
- Anesthesia for procedure on small and large bowel using an endoscope (00813)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 pressure75%
- High cholesterol75%
- Diabetes47%
- Arthritis46%
- Chronic kidney disease41%
- Ischemic heart disease29%
Hospitals where Fritz Mesilien works
Medicare's Facility Affiliation Data lists Fritz Mesilien 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.
- Sentara Leigh HospitalNorfolk, VA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: not listed by Medicare · CCN 490046
- Sentara Norfolk General HospitalNorfolk, VA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 490007
- Trinity Rock IslandRock Island, IL · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 140280
- Vista Medical Center EastWaukegan, IL · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 140084
Practice locations
Addresses where Fritz Mesilien is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 8; the Medicare profile lists all.
- 1324 N Sheridan RdWaukegan, IL 60085 (847) 360‑3000
- 1551 E Tangerine RdOro Valley, AZ 85755 (520) 229‑2657
- 18450 Hwy 59 N, Suite 101Humble, TX 77338 · Eclipse Anesthesia Partners, PLLC (203) 820‑9397
- 2701 17th StRock Island, IL 61201 (844) 937‑1810
- 401 E Spruce StGarden City, KS 67846 (620) 272‑2222
Group practices
Medicare enrollment lists Fritz Mesilien as a member of these groups (CMS data updated October 2, 2026).
- SMG Anesthesia Specialists LLC514 clinicians in the group
- Northwest HBP Medical Services LLC284 clinicians in the group
- Clinical Colleagues Inc164 clinicians in the group
- Vital Health Partners LLC81 clinicians in the group
- Waukegan Clinic Corp56 clinicians in the group
- US Anesthesia Partners of Kansas PA20 clinicians in the group
Specialties
Find other clinicians: Certified Registered Nurse Anesthetist (CRNA), Illinois →
Other nurse anesthetists in Waukegan
Clinicians with the same Medicare primary specialty in Waukegan, IL — not a recommendation.
Other clinicians in SMG Anesthesia Specialists LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | CNA |
|---|---|
| Graduation year | 2022 |
| Gender (as listed) | Male |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1073914511 |
| 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