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Dr. Mary F Welsh , MD

Surgery β€’ Fairfield, NJ

Active NPI 1063406874 Individual Practitioner Female Practitioner Accepts Medicare assignment
Practice location in NPPES

695 Us Highway 46, Suite 400a
Fairfield, NJ 070041592

Call 9738941263 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

695 Us Highway 46
Suite 400a

Fairfield, NJ 070041592

Telephone 9738941263
Fax 8889723703
Organization at the Same NPPES Address or Phone
Qualified Surgical Services Pllc Facility NPI 1013342484

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: Rwjbh Observation Associates Llc. 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

Graduation Year

1971

Industry payments (Open Payments)

Fewer than 11 payment records totaling $22.80 in 2025

Drug and medical device companies must report certain payments to doctors and some other clinicians to CMS, such as meals, travel, speaking fees or research funding.

These records are submitted by drug and medical device companies, and a reported payment does not necessarily mean the financial relationship is improper.

General: payments not tied to research, such as meals, travel, consulting or speaking fees.

A reported payment does not necessarily mean the financial relationship is improper. Research payments can go to a hospital or university for a study the clinician leads, not to the clinician personally. Clinicians can dispute records with the company that reported them.

Source: CMS Open Payments, program year 2025.

Guide: How to read an Open Payments record

Years since graduation

55 years (graduated 1971)

CMS Doctors and Clinicians data list 1971 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

2005

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, β€œDoes your provider accept Medicare as full payment?”

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. Welsh 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. Welsh 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 Fairfield and New Jersey

7 active clinicians are listed under Surgery with a practice address in Fairfield, NJ (737 in New Jersey).

Addresses are self-reported to NPPES and may be out of date.

Sources: CMS Open Payments (2025), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.

Text: T-MedInfo Β· Report an error.

Pharma & Medical Device Financial Disclosures

Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments

Open Payments Β· Program Year 2025
Disclosure Year:

Program year 2025 (payments made January 1 – December 31, 2025): fewer than 11 records totaling $22.80.

Manufacturer Payment Nature Product Type Amount ($)
Ethicon Inc.
Food and Beverage
In-kind items and services
CONTOUR General $22.80

Source: CMS Open Payments, program year 2025, released June 30, 2026.

Specialties & License Numbers Reported to NPPES

Surgery Primary Specialty

NUCC Taxonomy Code: 208600000X

License # reported to NPPES NJ 25MA062000800

A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.

Surgery

NUCC Taxonomy Code: 208600000X

License # reported to NPPES PA MD054775L

A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.

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: New Jersey Division of Consumer Affairs.
Look Up on State Board Site

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid ID
682200 (NJ)

Medicare (PECOS) Enrollment & Ordering Eligibility

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

PRACTITIONER - GENERAL SURGERY

Medicare Enrollment ID

I20050429000567

Enrollment State Jurisdiction

NJ

PECOS Control ID

0941249841

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

Rwjbh Observation Associates Llc

1 Hamilton Health Pl, Hamilton, NJ 086903542

Phone: 6095867900

Clinicians Sharing This Practice Address or Phone

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

3 listed
NPI 1407076862

Doctor of Medicine (M.D.)

NPI 1972710366

Doctor of Medicine (M.D.)

Petko Mitev , PA-C

Physician Assistant - Surgical

NPI 1881981348

Physician Assistant (Certified)

Career & Practice History Timeline

Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status

11 Historical Events
πŸ“
Updated Practice Location January 17, 2017

Registered at 695 US HIGHWAY 46, SUITE 400A, FAIRFIELD, NJ 070041592 (Tel: 9738941263)

πŸ“
Updated Business Mailing Address January 17, 2017

Registered at PO BOX 4059, WAYNE, NJ 074744059 (Tel: 9738941263)

πŸ‘€
Provider Name / Credentials Updated January 17, 2017

Recorded as MARY WELSH, M.D.

πŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) January 17, 2017

Surgery (license number reported to NPPES: PA MD054775L)

πŸ“
Practice Location (Initial Record) November 04, 2016

Registered at 695 US HIGHWAY 46, SUITE 400A, FAIRFIELD, NJ 070041592 (Tel: 9738941263)

πŸ“
Business Mailing Address (Initial Record) November 04, 2016

Registered at PO BOX 4059, WAYNE, NJ 074744059 (Tel: 9738941263)

πŸ‘€
Provider Name / Credentials (Initial Record) November 04, 2016

Recorded as MARY WELSH, M.D.

πŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) November 04, 2016

Surgery (license number reported to NPPES: NJ 25MA062000800)

πŸ”„
NPI Profile Reactivated April 05, 2006

Record officially reactivated for active practice on April 05, 2006

⚠️
NPI Profile Deactivated March 25, 2006

NPPES lists this NPI as deactivated as of March 25, 2006; the reason is not published.

🟒
Initial NPI Registration & Enumeration September 07, 2005

First registered as active Individual Practitioner in NPPES Database.

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NPI Administrative Meta

NPI Number: 1063406874
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: September 07, 2005
Last Update: January 17, 2017
Sole Proprietor: No

Other Surgery Specialists in Fairfield

Mailing Address

Po Box 4059

Wayne, NJ 074744059

Phone: 9738941263

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.