Quick answers
- Does Rachel P. Baer accept Medicare assignment?
- Yes. Medicare's clinician data says Rachel P. Baer 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 Rachel P. Baer see?
- In 2024, CMS data shows 186 Original Medicare patients and 440 services for Rachel P. Baer. This counts Original Medicare only and measures volume, not quality.
- What is Rachel P. Baer's NPI number?
- 1437110707. 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 Rachel P. Baer, 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 | 186 |
|---|---|
| Services billed to Medicare | 440 |
| Different services or procedures | 53 |
| Participating Medicare provider | Yes |
| Average age of these patients | 76 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)143 services
- New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)27 services
- Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)27 services
- Partial removal of breast (19301)23 services
- Biopsy or removal of deep lymph nodes of underarm (38525)21 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 cholesterol75%
- High blood pressure74%
- Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)74%
- Arthritis55%
- Anxiety30%
- Chronic kidney disease30%
Hospitals where Rachel P. Baer works
Medicare's Facility Affiliation Data lists Rachel P. Baer 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.
- Advocate Lutheran General HospitalPark Ridge, IL · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 140223
- Advocate Sherman HospitalElgin, IL · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 140030
- Northwestern Medicine McHenryMcHenry, IL · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 140116
- Saint Joseph Hospital-ElginElgin, IL · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 140217
Practice locations
Addresses where Rachel P. Baer is enrolled with Medicare (CMS data updated October 2, 2026).
- 745 Fletcher Dr, Suite 302Elgin, IL 60123 (847) 695‑6600
Group practices
Medicare enrollment lists Rachel P. Baer as a member of this group (CMS data updated October 2, 2026).
- Advocate Health and Hospitals Corporation3,118 clinicians in the group
Specialties
- General Surgeryprimary
Other general surgeons in Elgin
Clinicians with the same Medicare primary specialty in Elgin, IL — not a recommendation.
Other clinicians in Advocate Health and Hospitals Corporation
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1980 (46 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1437110707 |
| 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