Quick answers
- Does Charles R. Strotz accept Medicare assignment?
- Yes. Medicare's clinician data says Charles R. Strotz 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 Charles R. Strotz see?
- In 2024, CMS data shows 60 Original Medicare patients and 233 services for Charles R. Strotz. This counts Original Medicare only and measures volume, not quality.
- What is Charles R. Strotz's NPI number?
- 1568492791. 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 Charles R. Strotz, 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 | 60 |
|---|---|
| Services billed to Medicare | 233 |
| Different services or procedures | 9 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- X-ray of knee, 1-2 views (73560)55 services
- X-ray of both knees while standing (73565)37 services
- Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more (99212)26 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)26 services
- New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)17 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%
- Arthritis65%
- High blood pressure58%
- Ischemic heart disease20%
Practice locations
Addresses where Charles R. Strotz is enrolled with Medicare (CMS data updated October 2, 2026).
- 25 Orinda Way, 100aOrinda, CA 94563
- 2999 Regent St, Suite 225Berkeley, CA 94705 (510) 704‑7760
Group practices
Medicare enrollment lists Charles R. Strotz as a member of this group (CMS data updated October 2, 2026).
- California Sports and Orthopaedic8 clinicians in the group
Specialties
- Orthopedic Surgeryprimary
Other orthopedic surgeons in California
Clinicians with the same Medicare primary specialty in California — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of California, San Francisco School Of Medicine |
| Graduation year | 1970 (56 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1568492791 |
| 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
- 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