Quick answers
- Where does John L. Arnold see patients?
- Medicare's clinician data lists 2 practice locations, including Walkersville, MD and Frederick, MD. Call before your visit to confirm the address.
- What is John L. Arnold's specialty?
- Medicare lists Physical Therapist in Private Practice as the primary specialty.
- Does John L. Arnold accept Medicare assignment?
- Yes. Medicare's clinician data says John L. Arnold accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for John L. Arnold?
- (301) 845-6336, as listed in official Medicare / NPI Registry data.
- What is John L. Arnold's NPI number?
- 1275419954. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where John L. Arnold is enrolled with Medicare (CMS data updated 2026-10-02).
- 19 W Frederick StWalkersville, MD 21793 (301) 845‑6336
- 5100 Buckeystown Pike, Suite 158Frederick, MD 21704 (301) 662‑6790
Group practices
Medicare enrollment lists John L. Arnold as a member of these groups (CMS data updated 2026-10-02).
- Privia Medical Group, LLC1,533 clinicians in the group
- Maryland Sportscare and Rehab LLC168 clinicians in the group
Specialties
Find other clinicians: Physical Therapist in Private Practice, Maryland →
Other physical therapists in Maryland
Clinicians with the same Medicare primary specialty in Maryland — not a recommendation.
Clinician information
| Credential | PT |
|---|---|
| Graduation year | 2025 |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1275419954 |
| 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 2026-10-02, retrieved 2026-10-29
- 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