Quick answers
- Does James J. Harber Iii accept Medicare assignment?
- Yes. Medicare's clinician data says James J. Harber Iii 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 J. Harber Iii see?
- In 2024, CMS data shows 90 Original Medicare patients and 107 services for James J. Harber Iii. This counts Original Medicare only and measures volume, not quality.
- What is James J. Harber Iii's NPI number?
- 1548219819. 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 J. Harber Iii, 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 | 90 |
|---|---|
| Services billed to Medicare | 107 |
| Different services or procedures | 12 |
| Participating Medicare provider | Yes |
| Average age of these patients | 80 |
Most frequent services
- Initial nursing facility care with moderate level of medical decision making, per day, if using time, at least 35 minutes (99305)39 services
- Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and (G0180)27 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%
- Chronic kidney disease59%
- Diabetes53%
- Depression51%
Practice locations
Addresses where James J. Harber Iii is enrolled with Medicare (CMS data updated October 2, 2026).
- 100 E Wood St, Suite 300aSpartanburg, SC 29303 (864) 560‑6012
- 1530 Drayton RdSpartanburg, SC 29307 (864) 560‑8777
Group practices
Medicare enrollment lists James J. Harber Iii as a member of this group (CMS data updated October 2, 2026).
- Spartanburg Medical Center1,078 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Spartanburg
Clinicians with the same Medicare primary specialty in Spartanburg, SC — not a recommendation.
Other clinicians in Spartanburg Medical Center
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Mercer University School Of Medicine |
| Graduation year | 1999 (27 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1548219819 |
| 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