DR. JAMES W O'BRIEN MD
NPI 1841275252
Internal Medicine - Gastroenterology in Manchester, CT

Q: What is James O'brien's NPI number?

The NPI number for James O'brien is 1841275252. It was assigned to this individual provider in the NPPES registry on December 8, 2005.

Q: What is James O'brien's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for James O'brien was last updated on May 1, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 months 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 December 08, 2005PECOS EnrolledAccepts Medicare Assignment

86.2/100

CMS Quality Rating

353 MAIN ST, MANCHESTER, CT 06040(860) 649-3477 Get Directions Write a Review

NPPES record last updated: May 1, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

On this page

About Dr. James W O'brien Md NPPES

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

DR. JAMES W O'BRIEN MD (NPI 1841275252) is an individual gastroenterology provider in Manchester, Connecticut, licensed in Connecticut (035189) and active in the NPI registry since December 2005. He is enrolled in Medicare PECOS, is affiliated with Adventist Health Castle, and is a graduate of Duke University School Of Medicine (1991).

NPPES Registry Identity

NPI1841275252

Entity TypeIndividualMale

Primary Taxonomy207RG0100X

Provider Legal NameDR. JAMES W O'BRIENCredential: MD

Location Address353 MAIN STManchester, CT 06040-4145

Mailing Address353 Main StManchester, CT 06040-4145 · (860) 649-3477

Phone(860) 649-3477

Sole ProprietorNo

Medical School CMSDuke University School Of MedicineGraduated 1991

Enumeration DateDecember 8, 2005

Last NPPES UpdateMay 1, 2025

NPPES CertifiedMay 1, 2025

✔ NPI 1841275252 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians

Taxonomy Code207RG0100X

Licenses✔ Licensed in CT · 035189✔ Licensed in HI · MD-19477

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.

353 MAIN ST, Manchester, CT 06040

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Other Identifiers 1

Medicaid001351890CT

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include HMSA.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 W O'brien Md 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 ID7719087790

PECOS Enrollment IDI20180625002009

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 9

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.

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.

89 services79 patients

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.

36 services36 patients

Ultrasound guided needle aspiration or biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43242

This procedure involves using an ultrasound to guide a needle to specific areas in the esophagus, stomach, or upper small bowel. A flexible endoscope is used to reach these areas. The needle collects a small sample for testing.

27 services25 patients

Removal of polyps or growths of esophagus, stomach, and/or upper small bowel using an endoscope with mechanical snare 43251

This procedure involves the use of a thin, flexible instrument called an endoscope to visualize and remove abnormal growths, known as polyps, from the esophagus, stomach, or upper small bowel. A tool called a mechanical snare is used to safely cut and remove these growths.

26 services25 patients

Removal of stone or debris from bile or pancreatic duct using a flexible endoscope 43264

This procedure, called an endoscopic retrograde cholangiopancreatography (ERCP), involves using a flexible tube with a camera (endoscope) to locate and remove stones or debris from your bile or pancreatic duct. It's a non-surgical method to clear the ducts, enhancing your digestive health.

25 services17 patients

Insertion of stent into pancreatic or bile duct using a flexible endoscope 43274

This procedure involves the placement of a tiny tube, known as a stent, into your pancreatic or bile duct. A flexible endoscope, a long, thin instrument with a light and camera, is used. It aids in relieving blockages and improving flow in these ducts.

20 services15 patients

Hospital Affiliations CMS Care Compare 4

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

Adventist Health Castle

Acute Care Hospitals · Kailua, HI

5/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number120006

Location640 Ulukahiki StKailua, HI 96734 · Honolulu County

Emergency services Birthing friendly

Wilcox Memorial Hospital

Acute Care Hospitals · Lihue, HI

2/5 CMS rating

OwnershipGovernment - Federal

CMS Certification Number120014

Location3-3420 Kuhio HighwayLihue, HI 96766 · Kauai County

Emergency services Birthing friendly

Straub Clinic And Hospital

Acute Care Hospitals · Honolulu, HI

4/5 CMS rating

OwnershipProprietary

CMS Certification Number120022

Location888 S King StreetHonolulu, HI 96813 · Honolulu County

Emergency services

Pali Momi Medical Center

Acute Care Hospitals · Aiea, HI

4/5 CMS rating

OwnershipProprietary

CMS Certification Number120026

Location98-1079 Moanalua RoadAiea, HI 96701 · Honolulu County

Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 06040 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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

86.2/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Quality

80.28

Promoting Interoperability

100

Improvement Activities

Cost

73.72

Other Providers at the Same Location NPPES 9

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

PETER S BUCH MD

Internal Medicine (Gastroenterology)