Quick answers
- Does William W. Behrens Jr. accept Medicare assignment?
- Yes. Medicare's clinician data says William W. Behrens Jr. 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 William W. Behrens Jr. see?
- In 2024, CMS data shows 297 Original Medicare patients and 2,269 services for William W. Behrens Jr.. This counts Original Medicare only and measures volume, not quality.
- What is William W. Behrens Jr.'s NPI number?
- 1770012767. 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 William W. Behrens Jr., 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 | 297 |
|---|---|
| Services billed to Medicare | 2,269 |
| Different services or procedures | 53 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Injection, triamcinolone acetonide, not otherwise specified, 10 mg (J3301)936 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)284 services
- X-ray of knee, 4 or more views (73564)178 services
- Aspiration and/or injection of fluid from large joint (20610)150 services
- New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)110 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%
- Arthritis75%
- Diabetes39%
- Depression38%
- Ischemic heart disease37%
Hospitals where William W. Behrens Jr. works
Medicare's Facility Affiliation Data lists William W. Behrens Jr. 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.
- Barnes-Jewish West County HospitalCreve Coeur, MO · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 260162
- Mercy Hospital SouthSaint Louis, MO · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 260077
- SSM St Clare Health CenterFenton, MO · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 260081
Practice locations
Addresses where William W. Behrens Jr. is enrolled with Medicare (CMS data updated October 2, 2026).
- 1011 Bowles Ave, Suite 100Fenton, MO 63026 (314) 849‑0311
- 1102 Sikes AveSikeston, MO 63801
- 12639 Old Tesson Rd, Suite 115Saint Louis, MO 63128
- 15425 Manchester Rd, Suite 28Ballwin, MO 63011 (636) 220‑6969
Group practices
Medicare enrollment lists William W. Behrens Jr. as a member of these groups (CMS data updated October 2, 2026).
- Health Facilities Rehab Services Inc154 clinicians in the group
- Physical Therapy Spine and Sports Medicine LLC129 clinicians in the group
- Signature Medical Group Inc41 clinicians in the group
Specialties
- Orthopedic Surgeryprimary
Other orthopedic surgeons in Fenton
Clinicians with the same Medicare primary specialty in Fenton, MO — not a recommendation.
Other clinicians in Health Facilities Rehab Services Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Kentucky College Of Medicine |
| Graduation year | 2017 (9 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1770012767 |
| 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