MARK DENNIS WIDMANN MD
NPI 1982674248
Thoracic Surgery (Cardiothoracic Vascular Surgery) in Morristown, NJ

Active since January 26, 2006PECOS EnrolledAccepts Medicare Assignment
100 MADISON AVE, SUITE 4101, MORRISTOWN, NJ 07960(973) 644-4844(973) 644-4776 Get Directions Write a Review

NPPES record last updated: November 21, 2016. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Mark Dennis Widmann Md NPPES

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

MARK DENNIS WIDMANN MD (NPI 1982674248) is an individual thoracic surgery (cardiothoracic vascular surgery) provider in Morristown, New Jersey, licensed in New Jersey (25MA06311100) and active in the NPI registry since January 2006. He is enrolled in Medicare PECOS, is affiliated with Morristown Medical Center, and is a graduate of Yale University School Of Medicine (1987).

NPPES Registry Identity

NPI1982674248
Entity TypeIndividualMale
Primary Taxonomy208G00000X
Provider Legal NameMARK DENNIS WIDMANNCredential: MD
Location Address100 MADISON AVE, SUITE 4101Morristown, NJ 07960-6136
Mailing AddressPo Box 416457Boston, MA 02241-6457
Fax(973) 644-4776
Sole ProprietorNo
Medical School CMSYale University School Of MedicineGraduated 1987
Enumeration DateJanuary 26, 2006
Last NPPES UpdateNovember 21, 2016
✔ NPI 1982674248 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyThoracic Surgery (Cardiothoracic Vascular Surgery)Allopathic & Osteopathic Physicians
Taxonomy Code208G00000X
License✔ Licensed in NJ · 25MA06311100
Definition
A thoracic surgeon provides the operative, perioperative and critical care of patients with pathologic conditions within the chest. Included is the surgical care of coronary artery disease, cancers of the lung, esophagus and chest wall, abnormalities of the trachea, abnormalities of the great vessels and heart valves, congenital anomalies, tumors of the mediastinum and diseases of the diaphragm. The management of the airway and injuries of the chest is within the scope of the specialty.
100 MADISON AVE, Morristown, NJ 07960

Other Identifiers 2

Medicare UPING87499
Medicaid7781407NJ

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Mark Dennis Widmann 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 ID4284610148
PECOS Enrollment IDI20040719000784
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.

Medicare Billing Reassignment

Medicare enrollment records show Mark Widmann reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Internal Medicine
100 MADISON AVENUE, INTEROFFICE #68
Morristown, NJ 07960
  • Reassigned Medicare billing, New Jersey enrollment
  • 1,699 clinicians in this Medicare group

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 23

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.

New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205
This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.
234 services234 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
200 services154 patients
Diagnostic exam of lung airway using an endoscope 31622
This procedure involves a doctor inserting a thin, flexible tube called an endoscope into your lung airway. It allows the doctor to view the airway and diagnose any issues. The process is safe and helps in accurate diagnosis.
163 services159 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
141 services73 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
108 services97 patients
Removal of lymph nodes of chest cavity using an endoscope 32674
This procedure involves using a thin, flexible tube with a light and camera, known as an endoscope, to access and remove lymph nodes in the chest cavity. It's a minimally invasive method, which can help in diagnosing or treating certain conditions.
92 services91 patients

Hospital Affiliations CMS Care Compare 5

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

Morristown Medical Center

Acute Care Hospitals · Morristown, NJ
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number310015
Location100 Madison AveMorristown, NJ 07960 · Morris County
Emergency services Birthing friendly

Chilton Medical Center

Acute Care Hospitals · Pompton Plains, NJ
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number310017
Location97 West ParkwayPompton Plains, NJ 07444 · Morris County
Emergency services Birthing friendly

Newton Medical Center

Acute Care Hospitals · Newton, NJ
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number310028
Location175 High StNewton, NJ 07860 · Sussex County
Emergency services Birthing friendly

Overlook Medical Center

Acute Care Hospitals · Summit, NJ
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number310051
Location99 Beauvoir AvenueSummit, NJ 07901 · Union County
Emergency services Birthing friendly

Hackettstown Medical Center

Acute Care Hospitals · Hackettstown, NJ
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number310115
Location651 Willow Grove StHackettstown, NJ 07840 · Warren County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 07960 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
$190.92 typical visit price
range $63.84 – $190.92
Typical copayment $47.73 (range $15.96 – $47.73)
Most-billed visit code 99205
Established Patient
$79.09 typical visit price
range $20.97 – $155.92
Typical copayment $19.77 (range $5.24 – $38.98)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Referred Medical Equipment & Supplies CMS DME claims 2

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing E0431
DME-Oxygen and Supplies · category DC000N
1 supplier15 claims15 services$14.06 avg. paid by Medicare
Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390
DME-Oxygen and Supplies · category DC002N
1 supplier24 claims24 services$62.71 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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.

Anesthesiology
100 MADISON AVE
MORRISTOWN, NJ 07960
General Acute Care Hospital
100 MADISON AVE
MORRISTOWN, NJ 07960
Social Worker (Clinical)
100 MADISON AVE
MORRISTOWN, NJ 07960
Nurse Practitioner (Adult Health)
100 MADISON AVE
MORRISTOWN, NJ 07960
Nurse Anesthetist, Certified Registered
100 MADISON AVE
MORRISTOWN, NJ 07960
Student in an Organized Health Care Education/Training Program
100 MADISON AVE
MORRISTOWN, NJ 07960
Student in an Organized Health Care Education/Training Program
100 MADISON AVE
MORRISTOWN, NJ 07960
Student in an Organized Health Care Education/Training Program
100 MADISON AVE
MORRISTOWN, NJ 07960

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 Mark Widmann's NPI number?

The NPI number for Mark Widmann is 1982674248. It was assigned to this individual provider in the NPPES registry on January 26, 2006.

Where is Mark Widmann located?

Mark Widmann practices at 100 Madison Ave Suite 4101, Morristown, NJ 07960. The listed phone number is (973) 644-4844.

What is Mark Widmann's specialty?

The primary specialty registered for this NPI is Thoracic Surgery (Cardiothoracic Vascular Surgery) with taxonomy code 208G00000X.

Is Mark Widmann enrolled in Medicare?

Yes. Mark Widmann 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.

Which organization bills Medicare for Mark Widmann's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mark Widmann reassigns Medicare benefits to Practice Associates Medical Group (Morristown, NJ). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Mark Widmann's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Mark Widmann accept?

Health plans from Oscar Health list Mark Widmann as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Mark Widmann affiliated with any hospitals?

According to CMS data, Mark Widmann is affiliated with Morristown Medical Center, Chilton Medical Center, Newton Medical Center, Overlook Medical Center and Hackettstown Medical Center.

When was this NPI record last updated?

The NPPES record for Mark Widmann was last updated on November 21, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 years 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.