Physician Profile
Unclaimed ProfileAbout Dr. Marshall
Based in Orange, CT, James Warner Marshall, D.O. is listed in the NPI registry under internal medicine. James graduated from Univ of New England, College of Dental Medicine in 1985. According to Medicare claims data, James cared for 792 Medicare patients across 925 services.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Areas of Expertise
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (203) 529-3271
- Email not available
Practice Locations
521 BOSTON POST RD
Orange, CT 06477
Procedures Most Often Billed to Medicare
925 services · 792 patients · 12 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Insertion of needle into vein for collection of blood sample | Procedure | 36415 |
27 |
| Assessment of emotional or behavioral problems | Treatment | 96127 |
176 |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | Treatment | 93000 |
18 |
| 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 | |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
236 |
| New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more | Office visit | 99203 |
110 |
| Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | Billing code | G0439 |
74 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
69 |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
43 |
| Urinalysis, manual test | Lab test | 81002 |
38 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Related specialists at this location 3
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 3
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other internal medicines in Orange 6
Same specialty, same city.
More connections — 9 related providers in 2 groups
Trained at Univ of New England, College of Dental Medicine 1
Other providers in the same specialty who trained at the same institution.
Also performs Insertion of needle into vein for collection of blood sample 8
Providers in CT who bill this service to Medicare most often.
Common questions
What is Dr. Marshall's specialty?
Dr. Marshall is an internal medicine in Orange, CT. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “INTERNAL MEDICINE”.
NPI registry
Where can I find Dr. Marshall?
Dr. Marshall is listed at 521 BOSTON POST RD, Orange, CT 06477. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Marshall?
The number on file is (203) 529-3271. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Marshall's NPI number?
Dr. Marshall's National Provider Identifier is 1871597310. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
What is Dr. Marshall's medical education?
Dr. Marshall attended Univ of New England, College of Dental Medicine, graduating in 1985. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Marshall been practicing?
Dr. Marshall has 41 years experience. Calculated from a graduation year of 1985, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Marshall known for?
According to Medicare billing data, Dr. Marshall performs procedures including insertion of needle into vein for collection of blood sample; provides treatments such as assessment of emotional or behavioral problems and routine electrocardiogram using at least 12 leads with interpretation and report, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Marshall confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Marshall. If this is you, claiming it is free.
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Claim this profileProvider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.