Quick answers
- Does James J. Holloway accept Medicare assignment?
- Yes. Medicare's clinician data says James J. Holloway 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. Holloway see?
- In 2024, CMS data shows 282 Original Medicare patients and 482 services for James J. Holloway. This counts Original Medicare only and measures volume, not quality.
- What is James J. Holloway's NPI number?
- 1346243813. 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. Holloway, 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 | 282 |
|---|---|
| Services billed to Medicare | 482 |
| Different services or procedures | 20 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)345 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%
- Arthritis48%
- Diabetes31%
- Ischemic heart disease27%
- Chronic kidney disease26%
Hospitals where James J. Holloway works
Medicare's Facility Affiliation Data lists James J. Holloway at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Monument Health Custer HospitalCuster, SD · Critical Access Hospital · Emergency services: listed by Medicare · CCN 431323
- Monument Health Lead-Deadwood HospitalDeadwood, SD · Critical Access Hospital · Emergency services: listed by Medicare · CCN 431320
- Monument Health Rapid City HospitalRapid City, SD · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 430077
- Monument Health Spearfish HospitalSpearfish, SD · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 430048
- Monument Health Sturgis HospitalSturgis, SD · Critical Access Hospital · Emergency services: listed by Medicare · CCN 431321
Practice locations
Addresses where James J. Holloway is enrolled with Medicare (CMS data updated October 2, 2026).
- 71 Charles StDeadwood, SD 57732 (605) 717‑6431
Group practices
Medicare enrollment lists James J. Holloway as a member of this group (CMS data updated October 2, 2026).
- Monument Health Network Inc160 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in South Dakota
Clinicians with the same Medicare primary specialty in South Dakota — not a recommendation.
Other clinicians in Monument Health Network Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Indiana University School Of Medicine |
| Graduation year | 1979 (47 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1346243813 |
| 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- 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