Quick answers
- Does James W. O Brien Iv accept Medicare assignment?
- Yes. Medicare's clinician data says James W. O Brien Iv 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 James W. O Brien Iv see?
- In 2024, CMS data shows 185 Original Medicare patients and 7,723 services for James W. O Brien Iv. This counts Original Medicare only and measures volume, not quality.
- What is James W. O Brien Iv's NPI number?
- 1609992031. 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 James W. O Brien Iv, 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 | 185 |
|---|---|
| Services billed to Medicare | 7,723 |
| Different services or procedures | 11 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Therapy procedure using exercise to develop strength, endurance, range of motion, and flexibility, each 15 minutes (97110)2,702 services
- Therapy procedure using manual technique, each 15 minutes (97140)1,880 services
- Electrical stimulation (unattended), to one or more areas for indication(s) other than wound care, as part of a therapy plan of care (G0283)888 services
- Therapy procedure to re-educate brain-to-nerve-to-muscle function, each 15 minutes (97112)849 services
- Therapy procedure using functional activities (97530)393 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%
- Arthritis75%
- High blood pressure69%
- Anxiety33%
- Depression23%
- Diabetes22%
Practice locations
Addresses where James W. O Brien Iv is enrolled with Medicare (CMS data updated October 2, 2026).
- 5 A Hutchinson DrDanvers, MA 01923 (978) 750‑8188
Group practices
Medicare enrollment lists James W. O Brien Iv as a member of this group (CMS data updated October 2, 2026).
- Harmeling Physical Therapy and Sports Fitness Inc17 clinicians in the group
Specialties
Find other clinicians: Physical Therapist in Private Practice, Massachusetts →
Other physical therapists in Danvers
Clinicians with the same Medicare primary specialty in Danvers, MA — not a recommendation.
Other clinicians in Harmeling Physical Therapy and Sports Fitness Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | PT |
|---|---|
| Graduation year | 2005 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1609992031 |
| 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