DR. JAMES JOSEPH CONNOLLY M.D.
NPI 1609255223
Internal Medicine - Gastroenterology in North Chelmsford, MA

Active since May 28, 2015PECOS EnrolledAccepts Medicare Assignment
20 RESEARCH PL STE 220, NORTH CHELMSFORD, MA 01863(978) 459-6737(855) 818-1869 Get Directions Write a Review

NPPES record last updated: June 15, 2022. Verified against the NPPES registry weekly; last sync: July 19, 2026.

Record update history: Aug 11, 2019, Jul 18, 2018 (2 updates tracked since 2018).

About Dr. James Joseph Connolly M.d. NPPES

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

DR. JAMES JOSEPH CONNOLLY M.D. (NPI 1609255223) is an individual gastroenterology provider in North Chelmsford, Massachusetts, licensed in Massachusetts (291075) and active in the NPI registry since May 2015. He is enrolled in Medicare PECOS, is affiliated with Lawrence General Hospital, and maintains 3 additional practice locations.

NPPES Registry Identity

NPI1609255223
Entity TypeIndividualMale
Primary Taxonomy207RG0100X
Provider Legal NameDR. JAMES JOSEPH CONNOLLYCredential: M.D.
Location Address20 RESEARCH PL STE 220North Chelmsford, MA 01863-2455
Mailing Address650 Albany Street, 5th Floor, Rm 504, Evans Biomedical Research Center Bldg.Boston, MA 02118 · (617) 638-8330
Fax(855) 818-1869
Sole ProprietorNo
Medical School CMSOtherGraduated 2015
Enumeration DateMay 28, 2015
Last NPPES UpdateJune 15, 20222 updates tracked since enumeration
NPPES CertifiedJune 15, 2022
NPI 1609255223 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
License Licensed in MA · 291075
Definition

An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.

Also ListedHospitalistTaxonomy 208M00000X · License 61607 (CT)
20 RESEARCH PL STE 220, North Chelmsford, MA 01863

Secondary Practice Locations 3

Location 120 York St, CB-2041, Yale-New Haven HospitalNew Haven, CT 06510 · Phone (203) 688-4748 · Fax (203) 688-4740
Location 2950 Campbell Ave # 11Acsl1, VA Connecticut Healthcare SystemWest Haven, CT 06516-2770 · Phone (203) 688-8300
Location 3650 Albany Street, 5th floor, Rm 504, Evans Biomedical Research Center Bldg.Boston, MA 02118 · Phone (617) 638-8330

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Dr. James Joseph Connolly M.d. 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 ID4688987886
PECOS Enrollment IDI20220628002143
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.

Areas of Expertise CMS Part B claims 13

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.

Removal of polyps or growths of large bowel using an endoscope with mechanical snare 45385
This procedure involves using a thin, flexible tube called an endoscope to examine the large bowel. If any abnormal growths or polyps are found, a tool called a mechanical snare is used to remove them. This is a common method to prevent potential health issues.
67 services67 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.
60 services52 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
57 services55 patients
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
40 services40 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
40 services32 patients
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43239
This procedure involves using a thin, flexible tube with a light and camera, known as an endoscope, to examine the esophagus, stomach, and upper part of the small intestine. Small tissue samples are taken for further examination to help diagnose various conditions.
36 services35 patients

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Lawrence General Hospital

Acute Care Hospitals · Lawrence, MA
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number220010
LocationOne General StreetLawrence, MA 01842 · Essex County
Emergency services Birthing friendly

Lowell General Hospital

Acute Care Hospitals · Lowell, MA
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number220063
Location295 Varnum AvenueLowell, MA 01854 · Middlesex County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 01863 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
$144.11 typical visit price
range $63.72 – $189.86
Typical copayment $36.02 (range $15.93 – $47.46)
Most-billed visit code 99204
Established Patient
$111.18 typical visit price
range $21.07 – $155.29
Typical copayment $27.79 (range $5.26 – $38.82)
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 6

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

Specialist
20 RESEARCH PL STE 220
NORTH CHELMSFORD, MA 01863
Internal Medicine
20 RESEARCH PL STE 220
NORTH CHELMSFORD, MA 01863
Internal Medicine (Gastroenterology)
20 RESEARCH PL STE 220
NORTH CHELMSFORD, MA 01863
Nurse Practitioner
20 RESEARCH PL STE 220
NORTH CHELMSFORD, MA 01863
Internal Medicine (Gastroenterology)
20 RESEARCH PL STE 220
NORTH CHELMSFORD, MA 01863
Internal Medicine (Gastroenterology)
20 RESEARCH PL STE 220
NORTH CHELMSFORD, MA 01863

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 Connolly's NPI number?

The NPI number for James Connolly is 1609255223. It was assigned to this individual provider in the NPPES registry on May 28, 2015.

Where is James Connolly located?

James Connolly practices at 20 Research Pl Ste 220, North Chelmsford, MA 01863. The listed phone number is (978) 459-6737.

What is James Connolly's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Is James Connolly enrolled in Medicare?

Yes. James Connolly 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.

What insurance does James Connolly accept?

Health plans from Anthem Blue Cross and Blue Shield and WellSense Health Plan list James Connolly 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.

Is James Connolly affiliated with any hospitals?

According to CMS data, James Connolly is affiliated with Lawrence General Hospital and Lowell General Hospital.

When was this NPI record last updated?

The NPPES record for James Connolly was last updated on June 15, 2022. NPI Profile syncs with the weekly NPPES data releases published by CMS.