Quick answers
- Does Sophos G. Geroulis accept Medicare assignment?
- Yes. Medicare's clinician data says Sophos G. Geroulis 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 Sophos G. Geroulis see?
- In 2024, CMS data shows 354 Original Medicare patients and 810 services for Sophos G. Geroulis. This counts Original Medicare only and measures volume, not quality.
- What is Sophos G. Geroulis's NPI number?
- 1295820637. 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 Sophos G. Geroulis, 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 | 354 |
|---|---|
| Services billed to Medicare | 810 |
| Different services or procedures | 27 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)232 services
- Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)182 services
- New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)82 services
- Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or (G2212)61 services
- Injection of chemical for paralysis of facial and neck nerve muscles on both sides of face (64615)40 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 cholesterol74%
- High blood pressure73%
- Arthritis47%
- Chronic kidney disease32%
- Anxiety30%
- Depression28%
Hospitals where Sophos G. Geroulis works
Medicare's Facility Affiliation Data lists Sophos G. Geroulis 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.
- Oconomowoc Memorial HospitalOconomowoc, WI · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 520062
- Waukesha Memorial HospitalWaukesha, WI · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 520008
Practice locations
Addresses where Sophos G. Geroulis is enrolled with Medicare (CMS data updated October 2, 2026).
- 721 American Ave, Suite 108Waukesha, WI 53188 (262) 928‑8200
- 725 American AveWaukesha, WI 53188 (262) 928‑1000
Group practices
Medicare enrollment lists Sophos G. Geroulis as a member of this group (CMS data updated October 2, 2026).
- Prohealth Medical Group Inc479 clinicians in the group
Specialties
- Neurologyprimary
Other neurologists in Waukesha
Clinicians with the same Medicare primary specialty in Waukesha, WI — not a recommendation.
Other clinicians in Prohealth Medical Group Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2003 (23 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1295820637 |
| 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