Quick answers
- Does William R. Walls accept Medicare assignment?
- Yes. Medicare's clinician data says William R. Walls 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 R. Walls see?
- In 2024, CMS data shows 55 Original Medicare patients and 747 services for William R. Walls. This counts Original Medicare only and measures volume, not quality.
- What is William R. Walls's NPI number?
- 1093861502. 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 R. Walls, 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 | 55 |
|---|---|
| Services billed to Medicare | 747 |
| Different services or procedures | 5 |
| Participating Medicare provider | Yes |
| Average age of these patients | 67 |
Most frequent services
- Psychotherapy, 1 hour (90837)628 services
- Family psychotherapy with patient, 50 minutes (90847)66 services
- Psychiatric diagnostic evaluation (90791)26 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).
- Anxiety75%
- High cholesterol69%
- High blood pressure60%
- Depression56%
- Arthritis42%
- Diabetes20%
Practice locations
Addresses where William R. Walls is enrolled with Medicare (CMS data updated October 2, 2026).
- 1208 E Churchville Rd, Suite 300Bel Air, MD 21014 (410) 893‑4600
- 260 Gateway Dr, Suite 11 12cBel Air, MD 21014 (410) 893‑4600
- 606 Baltimore Ave, Suite 406Baltimore, MD 21204 (410) 893‑4600
- 8 S Main StShrewsbury, PA 17361 (410) 893‑4600
Group practices
Medicare enrollment lists William R. Walls as a member of these groups (CMS data updated October 2, 2026).
- Safe Harbor Behavioral Care LLC88 clinicians in the group
- Safe Harbor Christian Counseling of Mid-Pennsylvania LLC2 clinicians in the group
Specialties
- Clinical Social Workerprimary
Other clinical social workers in Bel Air
Clinicians with the same Medicare primary specialty in Bel Air, MD — not a recommendation.
Other clinicians in Safe Harbor Behavioral Care LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | CSW |
|---|---|
| Graduation year | 1999 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1093861502 |
| 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