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Dr. Patrick J. O'donnell , DO

Pathology - Anatomic Pathology โ€ข Worcester, MA

Active NPI 1942415294 Individual Practitioner Male Practitioner Accepts Medicare assignment
Practice location in NPPES

55 Lake Ave N, Department Of Pathology
Worcester, MA 016550002

Call 5087936100 Location details and other listings
Medical Disclaimer

This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.

Practice Location & Contact Primary Location

Practice Address

55 Lake Ave N
Department Of Pathology

Worcester, MA 016550002

Telephone 5087936100
Fax 5087936110
Organization at the Same NPPES Address or Phone
Umass Memorial Medical Center Facility NPI 1679574933

Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.

Other Listings in Public Data

CMS Doctors and Clinicians lists 1 group name: Umass Memorial Medical Group Inc. See the list

Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.

Listings do not confirm current availability, employment or a shared ownership network.

Medicare Profile & Education

Source: CMS Doctors and Clinicians National Downloadable File

Medical School

Philadelphia College Of Osteopathic Medicine

Graduation Year

2005

Medicare patients

804 people with Original Medicare in 2024

Different Original Medicare patients in 2024; counts below 11 are hidden; this does not show availability or quality.

Source: CMS, Medicare Physician & Other Practitioners โ€“ by Provider, 2024.

Medicare-allowed amount

About $59,833 in 2024

The total amount Medicare approved for these services in 2024. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.

What this does not show: Medicare-allowed amount

This is not the clinician's income. Part of it can go to a clinic or group practice, staff, equipment or drugs. It is not the price you will pay.

Source: CMS, Medicare Physician & Other Practitioners โ€“ by Provider and Service, 2024.

Paid by Medicare

About $46,620 in 2024

The part of the Medicare-allowed amount that Medicare itself paid in 2024, after patients' deductibles and coinsurance.

What this does not show: Paid by Medicare

This is not the clinician's income and not a measure of quality.

Source: CMS, Medicare Physician & Other Practitioners โ€“ by Provider and Service, 2024.

Industry payments (Open Payments)

No Open Payments records are listed for this clinician for 2019โ€“2025.

Guide: How to read an Open Payments record

Years since graduation

21 years (graduated 2005)

CMS Doctors and Clinicians data list 2005 as the year this clinician finished professional school.

What this does not show: Years since graduation

It is not the number of years in practice, and more years does not mean better care.

Source: CMS Doctors and Clinicians National Downloadable File.

NPI first issued

2007

The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.

What this does not show: NPI first issued

NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.

Source: CMS NPPES NPI Registry.

Accepts Medicare assignment

CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.

Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.

Source: CMS Doctors and Clinicians; Medicare.gov, โ€œDoes your provider accept Medicare as full payment?โ€

Guide: What Medicare assignment means

No telehealth indicator

CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.

Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.

Guide: How Medicare covers telehealth

Enrolled in Medicare (PECOS)

Dr. O'Donnell has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.

It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What Medicare enrollment (PECOS) means

Can order Medicare-covered services

CMS lists Dr. O'Donnell as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.

What this does not show: Can order Medicare-covered services

It does not mean the clinician offers these services directly.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What ordering and referring status means

Compared with the same specialty in Worcester and Massachusetts

Billing and prescribing volume is not a quality rating.

Medicare Part B services

Close to the middle for clinicians listed under Pathology - Anatomic Pathology in Worcester, MA (2024, 27 clinicians with data). Median for this group: 1,637. Middle half: 1,203 to 2,516.

More Medicare Part B services than 65% of clinicians listed under Pathology - Anatomic Pathology in Massachusetts (2024, 157 clinicians with data). Median for this group: 1,346. Middle half: 629 to 2,282.

Medicare-allowed amount

Close to the middle for clinicians listed under Pathology - Anatomic Pathology in Worcester, MA (2024, 27 clinicians with data). Median for this group: $59,833. Middle half: $48,749 to $91,693.

Close to the middle for clinicians listed under Pathology - Anatomic Pathology in Massachusetts (2024, 157 clinicians with data). Median for this group: $53,176. Middle half: $26,435 to $86,990.

Paid by Medicare

Close to the middle for clinicians listed under Pathology - Anatomic Pathology in Worcester, MA (2024, 27 clinicians with data). Median for this group: $44,945. Middle half: $37,935 to $71,978.

Close to the middle for clinicians listed under Pathology - Anatomic Pathology in Massachusetts (2024, 157 clinicians with data). Median for this group: $41,704. Middle half: $20,703 to $68,820.

40 active clinicians are listed under Pathology - Anatomic Pathology with a practice address in Worcester, MA (278 in Massachusetts).

Addresses are self-reported to NPPES and may be out of date.

Telehealth indicator in Worcester

0% of these 40 clinicians have the CMS telehealth indicator.

67.5% of these 40 clinicians are listed by CMS as accepting Medicare assignment.

Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.

Text: T-MedInfo ยท Report an error.

Performed Procedures & Service Volume

Services billed to Original Medicare Part B in 2024.

CMS Part B ยท Data Year 2024
Reporting Year:

CPTยฎ is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016โ€“2023 American Medical Association. All rights reserved. Applicable FARS/HHSARS apply. Descriptions of CPT codes are the AMA's CPT Consumer Friendly Descriptors as published by CMS in the Medicare Physician & Other Practitioners โ€“ by Provider and Service data, 2017โ€“2024; they are plain-language summaries, not for clinical coding or documentation. HCPCS Level II codes and descriptions are from CMS. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.

HCPCS Code Services Patients Submitted Charge Medicare Allowed
88305 Pathology examination of tissue using a microscope, intermediate complexity
987 605 $268.00 $36.26
88341 Special stained specimen slides to examine tissue, each additional procedure
214 42 $101.00 $27.20
88305 Pathology examination of tissue using a microscope, intermediate complexity
199 146 $268.00 $35.71
88312 Special stained specimen slides to identify organisms including interpretation and report
71 47 $124.00 $25.79
88312 Special stained specimen slides to identify organisms including interpretation and report
67 37 $124.00 $24.97
88342 Special stained specimen slides to examine tissue, initial procedure
53 43 $205.00 $33.93
88350 Antibody evaluation, each additional single antibody stain procedure
52 13 $132.00 $28.25
88304 Pathology examination of tissue using a microscope, moderately low complexity
44 37 $173.00 $11.05
88341 Special stained specimen slides to examine tissue, each additional procedure
42 11 $101.00 $27.22
88321 Surgical pathology consultation and report on referred slides prepared elsewhere
20 20 $343.00 $81.68
88313 Special stained specimen slides to examine tissue including interpretation and report
16 12 $62.00 $11.66
88342 Special stained specimen slides to examine tissue, initial procedure
13 12 $205.00 $33.92
88346 Antibody evaluation, initial single antibody stain procedure
13 13 $205.00 $34.99

Source: CMS Part B by Provider and Service, 2024; services under 11 beneficiaries omitted by CMS. Privacy limits

Submitted charges are billed amounts, not a price quote for your visit.

Specialties & License Numbers Reported to NPPES

Self-certified to NPPES: 2020-11-25
Pathology - Anatomic Pathology Primary Specialty

NUCC Taxonomy Code: 207ZP0101X

License # reported to NPPES MA 239497

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.

Check License Status with the State Board License numbers are self-reported to NPPES; T-MedInfo does not confirm them against state records. Current status: Massachusetts Board of Registration in Medicine.
Look Up on State Board Site

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid ID
110088941A (MA)

Medicare (PECOS) Enrollment & Ordering Eligibility

Source: CMS PECOS
Medicare FFS Enrollment Status Medicare Enrollment on File
CMS Provider Specialty

PRACTITIONER - PATHOLOGY

Medicare Enrollment ID

I20110708000076

Enrollment State Jurisdiction

MA

PECOS Control ID

1759575277

Medicare Order & Referring Eligibility
Clinical Lab & Imaging (Part B) Eligible
Durable Medical Equipment (DME) Eligible
Home Health Agency (HHA) Eligible
Power Mobility Devices (PMD) Eligible

Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.

Medicare Group Practice Enrollments

Source: CMS Doctors and Clinicians National Downloadable File

Umass Memorial Medical Group Inc

198 Charlton Rd, Sturbridge, MA 015661571

Phone: 5083479240

Umass Memorial Medical Group Inc

201 Highland St, Clinton, MA 015101037

Phone: 9783683731

Umass Memorial Medical Group Inc

100 S St, Southbridge, MA 015504051

Phone: 5087659771

Umass Memorial Medical Group Inc

281 Lincoln St, Worcester, MA 016052138

Phone: 5083341000

Umass Memorial Medical Group Inc

55 Lake Ave N, Worcester, MA 016550002

Phone: 5083341000

Umass Memorial Medical Group Inc

60 Hospital Rd, Leominster, MA 014532205

Phone: 9784662257

Umass Memorial Medical Group Inc

14 Prospect St, Milford, MA 017573003

Phone: 5084731190

Umass Memorial Medical Group Inc

378 Plantation St, Worcester, MA 016052324

Phone: 5083341000

Umass Memorial Medical Group Inc

151 Worcester Rd, Barre, MA 010059002

Phone: 9783556321

Umass Memorial Medical Group Inc

119 Belmont St, Worcester, MA 016052903

Phone: 5083341000

Clinicians Sharing This Practice Address or Phone

Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.

31 listed
Dr. Ali Akalin , MD

Pathology - Anatomic Pathology

NPI 1538218342

Doctor of Medicine (M.D.)

Dr. Sonali Ayar , MD

Pathology - Anatomic Pathology

NPI 1538315247

Doctor of Medicine (M.D.)

Dr. Gamze Ayata , MD

Pathology - Anatomic Pathology

NPI 1710977046

Doctor of Medicine (M.D.)

Dr. Shi Bai , MD

Pathology - Anatomic Pathology

NPI 1447781927

Doctor of Medicine (M.D.)

Dr. Ikjot Bhutani , MD

Pathology - Anatomic Pathology & Clinical Pathology

NPI 1801185335

Doctor of Medicine (M.D.)

Dr. Jennifer Clark , MD

Pathology - Anatomic Pathology & Clinical Pathology

NPI 1861819716

Doctor of Medicine (M.D.)

Career & Practice History

NPI enumerated May 11, 2007.

No changes to the name, practice address, taxonomy or NPI status in this record have been observed in the monthly NPPES data files from January 2017 to August 2026.

No reviews have been published yet. Leave a review.

NPI Administrative Meta

NPI Number: 1942415294
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: May 11, 2007
Last Update: November 25, 2020
Sole Proprietor: No

Other Pathology - Anatomic Pathology Specialists in Worcester

All Pathology - Anatomic Pathology Specialists in Worcester

Mailing Address

Po Box 415348

Boston, MA 022415348

About This Data NPPES fields (address, phone, specialty, license) are self-reported and may be outdated; Medicare fields follow the CMS dataset named in each section. Correct directly at NPPES.