WILLIAM PATRICK O'NEILL MD
NPI 1922118900
Pathology - Cytopathology in Terre Haute, IN

Q: What is William O'neill's NPI number?

The NPI number for William O'neill is 1922118900. It was assigned to this individual provider in the NPPES registry on August 30, 2006.

Q: What is William O'neill's specialty?

The primary specialty registered for this NPI is Pathology, specializing in Cytopathology, with taxonomy code 207ZC0500X.

Q: When was this NPI record last updated?

The NPPES record for William O'neill was last updated on April 15, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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 August 30, 2006PECOS EnrolledAccepts Medicare Assignment

3901 S 7TH ST, TERRE HAUTE, IN 47802(812) 234-8261(812) 234-8262 Get Directions Write a Review

NPPES record last updated: April 15, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

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About William Patrick O'neill Md NPPES

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

WILLIAM PATRICK O'NEILL MD (NPI 1922118900) is an individual cytopathology provider in Terre Haute, Indiana, licensed in New Jersey (25MA12983000) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS, is affiliated with Hca Florida Largo Hospital, and is a graduate of Other (1987).

NPPES Registry Identity

NPI1922118900

Entity TypeIndividualMale

Primary Taxonomy207ZC0500X

Provider Legal NameWILLIAM PATRICK O'NEILLCredential: MD

Location Address3901 S 7TH STTerre Haute, IN 47802-5709

Mailing Address2901 Ohio Blvd, Suite 127Terre Haute, IN 47803-2239 · (812) 234-8261 · Fax (812) 234-8262

Phone(812) 234-8261

Fax(812) 234-8262

Sole ProprietorNo

Medical School CMSOtherGraduated 1987

Enumeration DateAugust 30, 2006

Last NPPES UpdateApril 15, 2026

NPPES CertifiedApril 15, 2026

✔ NPI 1922118900 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPathology · CytopathologyAllopathic & Osteopathic Physicians

Taxonomy Code207ZC0500X

License✔ Licensed in NJ · 25MA12983000

Definition

A cytopathologist is an anatomic pathologist trained in the diagnosis of human disease by means of the study of cells obtained from body secretions and fluids, by scraping, washing, or sponging the surface of a lesion, or by the aspiration of a tumor mass or body organ with a fine needle. A major aspect of a cytopathologist's practice is the interpretation of Papanicolaou-stained smears of cells from the female reproductive systems, the Pap test. However, the cytopathologist's expertise is applied to the diagnosis of cells from all systems and areas of the body. He/she is a consultant to all medical specialists.

Also ListedPathology · Anatomic PathologyTaxonomy 207ZP0101X · License 25MA12983000 (NJ), 01061109A (IN)

3901 S 7TH ST, Terre Haute, IN 47802

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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

William Patrick O'neill 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 ID2062442155

PECOS Enrollment IDI20050818000289, I20260223001764

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 6

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.

130 services71 patients

Special stained specimen slides to examine tissue, each additional procedure 88341

Special stained specimen slides are used to analyze tissue in detail. In this process, extra procedures may be needed for a more thorough examination. These involve applying special stains to the tissue on slides, enhancing specific elements for closer study.

42 services12 patients

Cell examination of specimen, selective cellular enhancement technique 88112

Cell examination of a specimen using selective cellular enhancement technique is a lab process that improves the visibility of certain cells in a sample. It helps in identifying abnormalities or diseases. The process is non-invasive, safe, and aids in accurate diagnosis.

34 services30 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.

23 services21 patients

Pathology examination of tissue using a microscope, moderately low complexity 88304

A pathology examination of tissue, moderately low complexity, involves studying a small sample of your body tissue under a microscope. It helps to identify any abnormal cells or diseases. It's a routine procedure, not complex, and provides crucial insights for your diagnosis.

16 services16 patients

Preparation of tissue for examination by removing any calcium present 88311

This procedure involves treating tissue samples to remove any calcium, which can interfere with the examination. The tissue is soaked in a special solution that safely dissolves the calcium, leaving the tissue intact for accurate analysis. This helps in making precise diagnoses.

16 services12 patients

Hospital Affiliations CMS Care Compare 3

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

Hca Florida Largo Hospital

Acute Care Hospitals · Largo, FL

2/5 CMS rating

OwnershipProprietary

CMS Certification Number100248

Location201 14th St SWLargo, FL 33770 · Pinellas County

Emergency services

Union Hospital Inc

Acute Care Hospitals · Terre Haute, IN

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number150023

Location1606 N Seventh StTerre Haute, IN 47804 · Vigo County

Emergency services Birthing friendly

Robert Wood Johnson University Hospital At Hamilton

Acute Care Hospitals · Hamilton, NJ

2/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number310110

LocationOne Hamilton Health PlaceHamilton, NJ 08690 · Mercer County

Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 47802 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

$122.49 typical visit price

range $53.07 – $161.76

Typical copayment $30.62 (range $13.26 – $40.44)

Most-billed visit code 99204

Established Patient

$94.22 typical visit price

range $16.93 – $132.22

Typical copayment $23.55 (range $4.23 – $33.05)

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 20

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

GLOBALMED LAB AND FORENSICS PROFESSIONAL CORPORATION

Pathology (Anatomic Pathology)