Quick answers
- Does James W. Marshall Jr. accept Medicare assignment?
- Yes. Medicare's clinician data says James W. Marshall Jr. 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. Marshall Jr. see?
- In 2024, CMS data shows 399 Original Medicare patients and 1,046 services for James W. Marshall Jr.. This counts Original Medicare only and measures volume, not quality.
- What is James W. Marshall Jr.'s NPI number?
- 1871597310. 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. Marshall Jr., 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 | 399 |
|---|---|
| Services billed to Medicare | 1,046 |
| Different services or procedures | 43 |
| Participating Medicare provider | Yes |
| Average age of these patients | 72 |
Most frequent services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)236 services
- Assessment of emotional or behavioral problems (96127)176 services
- New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)110 services
- Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)74 services
- Respiratory infectious agent detection by rna for severe acute respiratory syndrome coronavirus 2 (covid 19), influenza a, influenza b, and respiratory syncytial virus, upper respiratory specimen, each reported as detected or not detected (0241U)70 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 cholesterol68%
- High blood pressure64%
- Arthritis39%
- Anxiety29%
- Diabetes25%
- Ischemic heart disease23%
Practice locations
Addresses where James W. Marshall Jr. is enrolled with Medicare (CMS data updated October 2, 2026).
- 521 Boston Post RdOrange, CT 06477 (203) 874‑3682
Group practices
Medicare enrollment lists James W. Marshall Jr. as a member of these groups (CMS data updated October 2, 2026).
- Ct Medical Group Inc.37 clinicians in the group
- Docs Medical Inc30 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Connecticut
Clinicians with the same Medicare primary specialty in Connecticut — not a recommendation.
Other clinicians in Ct Medical Group Inc.
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | Univ Of New England, College Of Dental Medicine |
| Graduation year | 1985 (41 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1871597310 |
| 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