Quick answers
- Does Susan Kiefer Griffin accept Medicare assignment?
- Yes. Medicare's clinician data says Susan Kiefer Griffin 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 Susan Kiefer Griffin see?
- In 2024, CMS data shows 298 Original Medicare patients and 303 services for Susan Kiefer Griffin. This counts Original Medicare only and measures volume, not quality.
- What is Susan Kiefer Griffin's NPI number?
- 1144316654. 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 Susan Kiefer Griffin, 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 | 298 |
|---|---|
| Services billed to Medicare | 303 |
| Different services or procedures | 36 |
| Participating Medicare provider | Yes |
| Average age of these patients | 72 |
Most frequent services
- Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)69 services
- Anesthesia for other procedure on large bowel using an endoscope (00811)62 services
- Anesthesia for exam of colon using an endoscope (00812)47 services
- Anesthesia for placement or revision of blood flow shunt (01844)34 services
- Anesthesia for procedure on small and large bowel using an endoscope (00813)26 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%
- Arthritis45%
- Diabetes34%
- Chronic kidney disease34%
- Ischemic heart disease32%
Hospitals where Susan Kiefer Griffin works
Medicare's Facility Affiliation Data lists Susan Kiefer Griffin 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.
- AdventHealth SebringSebring, FL · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 100109
- Silver Cross Hospital and Medical CentersNew Lenox, IL · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 140213
Practice locations
Addresses where Susan Kiefer Griffin is enrolled with Medicare (CMS data updated October 2, 2026).
- 1900 Silver Cross BlvdNew Lenox, IL 60451 (815) 300‑1100
- 403 S Kennedy DrBradley, IL 60915 (815) 928‑9999
- 4200 Sun N Lake BlvdSebring, FL 33872 (863) 703‑2886
- 430 Maxine DrMorton, IL 61550 (309) 495‑4520
- 745 Fletcher Dr, Suite 202Elgin, IL 60123 (847) 888‑1300
Group practices
Medicare enrollment lists Susan Kiefer Griffin as a member of these groups (CMS data updated October 2, 2026).
- Ams National LLC316 clinicians in the group
- Illinois Gastroenterology Group LLC115 clinicians in the group
- Allied Anesthesia Associates P C52 clinicians in the group
- Principle Anesthesia PLLC2 clinicians in the group
Specialties
Find other clinicians: Certified Registered Nurse Anesthetist (CRNA), Illinois →
Other nurse anesthetists in New Lenox
Clinicians with the same Medicare primary specialty in New Lenox, IL — not a recommendation.
Other clinicians in Ams National LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | CNA |
|---|---|
| Graduation year | 1991 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1144316654 |
| 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