DR. DENNIS G O'NEILL M.D.
NPI 1083679021
Pathology - Anatomic Pathology & Clinical Pathology in Manchester, CT

Active since April 20, 2006PECOS EnrolledAccepts Medicare Assignment
84.55/100
CMS Quality Rating
71 HAYNES ST, MANCHESTER, CT 06040(860) 647-6487(860) 647-6447 Get Directions Write a Review

NPPES record last updated: October 24, 2014. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Dr. Dennis G O'neill M.d. NPPES

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

DR. DENNIS G O'NEILL M.D. (NPI 1083679021) is an individual anatomic pathology & clinical pathology provider in Manchester, Connecticut, licensed in Connecticut (023300) and active in the NPI registry since April 2006. He is enrolled in Medicare PECOS and is a graduate of Rutgers New Jersey Medical School (1979).

NPPES Registry Identity

NPI1083679021
Entity TypeIndividualMale
Primary Taxonomy207ZP0102X
Provider Legal NameDR. DENNIS G O'NEILLCredential: M.D.
Location Address71 HAYNES STManchester, CT 06040-4131
Mailing AddressPo Box 206New Haven, CT 06501-0206 · (203) 397-8000 · Fax (203) 389-1540
Fax(860) 647-6447
Sole ProprietorNo
Medical School CMSRutgers New Jersey Medical SchoolGraduated 1979
Enumeration DateApril 20, 2006
Last NPPES UpdateOctober 24, 2014
NPI 1083679021 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyPathology · Anatomic Pathology & Clinical PathologyAllopathic & Osteopathic Physicians
Taxonomy Code207ZP0102X
License Licensed in CT · 023300
Definition

A pathologist deals with the causes and nature of disease and contributes to diagnosis, prognosis and treatment through knowledge gained by the laboratory application of the biologic, chemical and physical sciences. A pathologist uses information gathered from the microscopic examination of tissue specimens, cells and body fluids, and from clinical laboratory tests on body fluids and secretions for the diagnosis, exclusion and monitoring of disease.

71 HAYNES ST, Manchester, CT 06040

Other Identifiers 14

Other008172967CT · Aetna/ushc
Other0102330CT · Cigna
Other500HBL161CT02CT · Blue Cross Rgh
OtherA524580CT · Oxford
OtherW1H29CT · Empire Bc/bs
Medicaid001233006CT
Other0004300173CT · Aetna
Other76164901CT · Connecticare
Other1104296CT · Uhc
OtherOR4388CT · Healthnet
OtherC009784CT · Champus Tricare
Medicare UPINE58083CT
Medicare ID-Type Unspecified220000408CT
Other500HBL161CT01CT · Blue Cross Mmh

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. Dennis G O'neill 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 ID5698763019
PECOS Enrollment IDI20101026000266
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 11

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.

Pathology examination of tissue using a microscope, intermediate complexity 88305
A pathology examination of tissue with intermediate complexity involves studying a small sample of your body tissue under a microscope. This helps in identifying any abnormal cells or signs of disease. It's a detailed process requiring expert analysis to ensure accurate results.
558 services224 patients
Pathology examination of tissue using a microscope, intermediate complexity 88305
A pathology examination of tissue with intermediate complexity involves studying a small sample of your body tissue under a microscope. This helps in identifying any abnormal cells or signs of disease. It's a detailed process requiring expert analysis to ensure accurate results.
411 services138 patients
Special stained specimen slides to examine tissue including interpretation and report 88313
Special stained specimen slides are used to examine tissue samples. This involves applying special dyes to the tissue, which helps to highlight certain features under a microscope. The findings are then interpreted and a report is provided. This can aid in diagnosing various health conditions.
194 services79 patients
Special stained specimen slides to examine tissue including interpretation and report 88313
Special stained specimen slides are used to examine tissue samples. This involves applying special dyes to the tissue, which helps to highlight certain features under a microscope. The findings are then interpreted and a report is provided. This can aid in diagnosing various health conditions.
180 services77 patients
Special stained specimen slides to examine tissue, initial procedure 88342
This procedure involves the use of specially stained slides to examine tissue samples. The initial process involves obtaining a small tissue sample from your body. This sample is then placed on a slide and stained with special dyes to highlight different structures and elements. The stained slide is then examined under a microscope to help diagnose any potential health issues.
88 services74 patients
Special stained specimen slides to identify organisms including interpretation and report 88312
This service involves coloring specimen slides in a special way to help identify organisms. The colors make different parts of the organism stand out. Afterward, a detailed interpretation and report on the findings are provided.
75 services44 patients

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.

84.55/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality66.48
Improvement Activities40

Other Providers at the Same Location NPPES 20

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

Emergency Medicine
71 HAYNES ST
MANCHESTER, CT 06040
Social Worker (Clinical)
71 HAYNES ST, BEHAVIORAL HEALTH UNIT
MANCHESTER, CT 06040
Emergency Medicine
71 HAYNES ST
MANCHESTER, CT 06040
Physician Assistant
71 HAYNES ST
MANCHESTER, CT 06040
Student in an Organized Health Care Education/Training Program
71 HAYNES ST
MANCHESTER, CT 06040
Psychiatry & Neurology (Child & Adolescent Psychiatry)
71 HAYNES ST
MANCHESTER, CT 06040
Physician Assistant (Surgical)
71 HAYNES ST
MANCHESTER, CT 06040
Psychiatry & Neurology (Psychiatry)
71 HAYNES ST, MMH
MANCHESTER, CT 06040

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 Dennis O'neill's NPI number?

The NPI number for Dennis O'neill is 1083679021. It was assigned to this individual provider in the NPPES registry on April 20, 2006.

Where is Dennis O'neill located?

Dennis O'neill practices at 71 Haynes St, Manchester, CT 06040. The listed phone number is (860) 647-6487.

What is Dennis O'neill's specialty?

The primary specialty registered for this NPI is Pathology, specializing in Anatomic Pathology & Clinical Pathology, with taxonomy code 207ZP0102X.

Is Dennis O'neill enrolled in Medicare?

Yes. Dennis O'neill 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.

When was this NPI record last updated?

The NPPES record for Dennis O'neill was last updated on October 24, 2014. NPI Profile syncs with the weekly NPPES data releases published by CMS.