Quick answers
- Does Robert Schwartzenberg accept Medicare assignment?
- Yes. Medicare's clinician data says Robert Schwartzenberg 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 Robert Schwartzenberg see?
- In 2024, CMS data shows 217 Original Medicare patients and 1,841 services for Robert Schwartzenberg. This counts Original Medicare only and measures volume, not quality.
- What is Robert Schwartzenberg's NPI number?
- 1548272545. 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 Robert Schwartzenberg, 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 | 217 |
|---|---|
| Services billed to Medicare | 1,841 |
| Different services or procedures | 45 |
| Participating Medicare provider | Yes |
| Average age of these patients | 76 |
Most frequent services
- Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes (99309)664 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)302 services
- Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)140 services
- Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)107 services
- Hemoglobin a1c level (83036)80 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%
- Arthritis53%
- Diabetes36%
- Ischemic heart disease32%
- Anxiety27%
Hospitals where Robert Schwartzenberg works
Medicare's Facility Affiliation Data lists Robert Schwartzenberg 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 Good Shepherd HospitalBarrington, IL · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 140291
Practice locations
Addresses where Robert Schwartzenberg is enrolled with Medicare (CMS data updated October 2, 2026).
- 912 Northwest Hwy, Suite 206Fox River Grove, IL 60021
- 912 Northwest Hwy 206Fox River Grove, IL 60021
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Illinois
Clinicians with the same Medicare primary specialty in Illinois — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1984 (42 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1548272545 |
| 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