DR. JAMES WARNER MARSHALL JR. D.O.
NPI 1871597310
Internal Medicine in Orange, CT

Q: What is James Marshall's NPI number?

The NPI number for James Marshall is 1871597310. It was assigned to this individual provider in the NPPES registry on June 13, 2005.

Q: What is James Marshall's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Q: When was this NPI record last updated?

The NPPES record for James Marshall was last updated on July 10, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since June 13, 2005PECOS EnrolledAccepts Medicare Assignment

521 BOSTON POST RD, ORANGE, CT 06477(203) 529-3271(203) 529-3273 Get Directions Write a Review

NPPES record last updated: July 10, 2021. Verified against the NPPES registry weekly; last sync: October 18, 2026.

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About Dr. James Warner Marshall Jr. D.o. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. JAMES WARNER MARSHALL JR. D.O. (NPI 1871597310) is an individual internal medicine provider in Orange, Connecticut, licensed in Connecticut (000204) and active in the NPI registry since June 2005. He is enrolled in Medicare PECOS and is a graduate of Univ Of New England, College Of Dental Medicine (1985).

NPPES Registry Identity

NPI1871597310

Entity TypeIndividualMale

Primary Taxonomy207R00000X

Provider Legal NameDR. JAMES WARNER MARSHALL JR.Credential: D.O.

Location Address521 BOSTON POST RDOrange, CT 06477-3506

Mailing Address64 Russell AveOrange, CT 06477-2505 · (203) 913-2538

Phone(203) 529-3271

Fax(203) 529-3273

Sole ProprietorNo

Medical School CMSUniv Of New England, College Of Dental MedicineGraduated 1985

Enumeration DateJune 13, 2005

Last NPPES UpdateJuly 10, 2021

NPPES CertifiedJuly 10, 2021

✔ NPI 1871597310 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207R00000X

License✔ Licensed in CT · 000204

Definition

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

521 BOSTON POST RD, Orange, CT 06477

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. James Warner Marshall Jr. D.o. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID941324610

PECOS Enrollment IDI20100901000844

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

Medicare enrollment records show James Marshall reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Ct Medical Group Inc.

11 mi

Family Medicine

317 FOXON RD
East Haven, CT 06513

Reassigned Medicare billing, Connecticut enrollment
35 clinicians in this Medicare group

NPI 1962265934 (203) 529-3271

Docs Medical Inc

11 mi

Family Medicine

317 FOXON ROAD 2B
East Haven, CT 06513

Reassigned Medicare billing, Connecticut enrollment
31 clinicians in this Medicare group

NPI 1104362169 (203) 529-3271

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 12

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

236 services170 patients

Assessment of emotional or behavioral problems 96127

Assessment of emotional or behavioral problems involves a thorough evaluation of your feelings, thoughts, and behaviors. It's a process where professionals study patterns over time to identify potential issues like anxiety, depression, or other mental health conditions.

176 services115 patients

New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203

This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.

110 services110 patients

Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439

An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.

74 services74 patients

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

This test detects the RNA of respiratory viruses, including COVID-19, Influenza A, Influenza B, and Respiratory Syncytial Virus, in an upper respiratory specimen. The test result will report if each virus is detected or not, helping in accurate diagnosis.

70 services70 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

69 services66 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

43 services43 patients

Urinalysis, manual test 81002

A urinalysis is a simple, non-invasive test that checks the urine for various elements such as sugar, protein, and signs of infection. It can help detect many common conditions, including kidney disease and diabetes. The manual test involves a lab technician examining a urine sample.

38 services35 patients

Annual depression screening, 5 to 15 minutes G0444

An annual depression screening is a short, routine evaluation to check for signs of depression. It involves answering a series of questions about your feelings, thoughts, and behaviors. The process takes about 15 minutes and helps detect depression early for better management.

37 services37 patients

Insertion of needle into vein for collection of blood sample 36415

This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.

27 services27 patients

Detection test by nucleic acid for strep (streptococcus, group a), amplified probe technique 87651

This test detects Group A Streptococcus bacteria in your body. It uses an amplified probe technique, which amplifies the bacteria's nucleic acid, making it easier to identify. This test helps diagnose conditions like strep throat or scarlet fever.

27 services27 patients

Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 93000

An electrocardiogram (ECG) is a non-invasive test that records your heart's electrical activity. Using 12 leads attached to your body, it captures data to help identify heart conditions. A doctor interprets the results and provides a report.

18 services18 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 06477 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$138.84 typical visit price

range $60.82 – $183.10

Typical copayment $34.71 (range $15.20 – $45.77)

Most-billed visit code 99204

Established Patient

$106.68 typical visit price

range $19.76 – $149.26

Typical copayment $26.67 (range $4.94 – $37.31)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 4

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

REBECCA PROCA

Physician Assistant (Medical)

521 BOSTON POST RD
ORANGE, CT 06477

South Central Connecticut Planning Region (203) 430-0671

URGENT CARE OF ORANGE, LLC

Clinic/Center (Urgent Care)

521 BOSTON POST RD
ORANGE, CT 06477

South Central Connecticut Planning Region (203) 885-0808

MATTHEW VANCE PENNACCHIA

Physician Assistant

521 BOSTON POST RD
ORANGE, CT 06477

South Central Connecticut Planning Region (203) 529-3271

MIKAELA PERRELLI

Physician Assistant

521 BOSTON POST RD
ORANGE, CT 06477

South Central Connecticut Planning Region (203) 874-3682

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is James Marshall's NPI number?

The NPI number for James Marshall is 1871597310. It was assigned to this individual provider in the NPPES registry on June 13, 2005.

Where is James Marshall located?

James Marshall practices at 521 Boston Post Rd, Orange, CT 06477. The listed phone number is (203) 529-3271.

What is James Marshall's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is James Marshall enrolled in Medicare?

Yes. James Marshall is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for James Marshall's services?

According to the CMS Revalidation Reassignment List (October 2026 release), James Marshall reassigns Medicare benefits to 2 organizations: Ct Medical Group Inc. (East Haven, CT) and Docs Medical Inc (East Haven, CT). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for James Marshall's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does James Marshall accept?

Health plans from Anthem Blue Cross and Blue Shield list James Marshall as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for James Marshall was last updated on July 10, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.