Quick answers
- Does James O. Hartson accept Medicare assignment?
- Yes. Medicare's clinician data says James O. Hartson 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 O. Hartson see?
- In 2024, CMS data shows 434 Original Medicare patients and 4,260 services for James O. Hartson. This counts Original Medicare only and measures volume, not quality.
- What is James O. Hartson's NPI number?
- 1821006602. 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 O. Hartson, 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 | 434 |
|---|---|
| Services billed to Medicare | 4,260 |
| Different services or procedures | 93 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Hyaluronan or derivative, synvisc or synvisc-one, for intra-articular injection, 1 mg (J7325)1,472 services
- Injection, triamcinolone acetonide, not otherwise specified, 10 mg (J3301)1,268 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)338 services
- Aspiration and/or injection of fluid from large joint (20610)260 services
- New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)123 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%
- Diabetes32%
- Ischemic heart disease29%
- Depression27%
Hospitals where James O. Hartson works
Medicare's Facility Affiliation Data lists James O. Hartson 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.
- Franciscan Health Crown PointCrown Point, IN · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 150126
- Franciscan Health Michigan CityMichigan City, IN · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 150015
- Northwest Health-La PorteLa Porte, IN · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 150006
Practice locations
Addresses where James O. Hartson is enrolled with Medicare (CMS data updated October 2, 2026).
- 1225 E Coolspring Ave, Suite 200Michigan City, IN 46360 (317) 528‑4800
- 1300 LincolnwayValparaiso, IN 46383
- 425 Sand Creek Dr, Suite CChesterton, IN 46304
Group practices
Medicare enrollment lists James O. Hartson as a member of these groups (CMS data updated October 2, 2026).
- Franciscan Physician Network1,170 clinicians in the group
- Rci (WRS) LLC360 clinicians in the group
- Chesterton Physical Therapy Inc186 clinicians in the group
Specialties
- Orthopedic Surgeryprimary
Other orthopedic surgeons in Indiana
Clinicians with the same Medicare primary specialty in Indiana — not a recommendation.
Other clinicians in Franciscan Physician Network
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 | 1995 (31 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1821006602 |
| 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