Quick answers
- Does Johanna R. Diamond accept Medicare assignment?
- Medicare's clinician data says Johanna R. Diamond may accept Medicare assignment (as of October 2, 2026). Ask the office whether they accept it for your visit.
- How many Medicare patients does Johanna R. Diamond see?
- In 2024, CMS data shows 23 Original Medicare patients and 622 services for Johanna R. Diamond. This counts Original Medicare only and measures volume, not quality.
- What is Johanna R. Diamond's NPI number?
- 1548788300. 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 Johanna R. Diamond, 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 | 23 |
|---|---|
| Services billed to Medicare | 622 |
| Different services or procedures | 8 |
| Participating Medicare provider | Yes |
| Average age of these patients | 72 |
Most frequent services
- Therapy procedure using exercise to develop strength, endurance, range of motion, and flexibility, each 15 minutes (97110)209 services
- Therapy procedure to re-educate brain-to-nerve-to-muscle function, each 15 minutes (97112)198 services
- Therapy procedure using functional activities (97530)150 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).
- Arthritis75%
- High cholesterol74%
- High blood pressure61%
Practice locations
Addresses where Johanna R. Diamond is enrolled with Medicare (CMS data updated October 2, 2026).
- 207 Harrison StOak Park, IL 60304 (312) 391‑8752
Group practices
Medicare enrollment lists Johanna R. Diamond as a member of this group (CMS data updated October 2, 2026).
- Centre Physical Therapy8 clinicians in the group
Specialties
Find other clinicians: Physical Therapist in Private Practice, Illinois →
Other physical therapists in Oak Park
Clinicians with the same Medicare primary specialty in Oak Park, IL — not a recommendation.
Other clinicians in Centre Physical Therapy
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Graduation year | 2017 |
|---|---|
| Gender (as listed) | Female |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1548788300 |
| 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