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MARK WELBER DO
NPI 1285654244
Emergency Medicine in Livingston, NJ

Active since July 20, 2006PECOS Enrolled
75/100
CMS Quality Rating
94 OLD SHORT HILLS RD, LIVINGSTON, NJ 07039(973) 322-5000 Get Directions Write a Review

NPPES record last updated: July 13, 2022. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Mark Welber Do NPPES

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

MARK WELBER DO (NPI 1285654244) is an individual emergency medicine provider in Livingston, New Jersey, licensed in New Jersey (25MB05675700) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1285654244
Entity TypeIndividualMale
Primary Taxonomy207P00000X
Provider Legal NameMARK WELBERCredential: DO
Location Address94 OLD SHORT HILLS RDLivingston, NJ 07039-5672
Mailing AddressPo Box 717Livingston, NJ 07039-0717 · (973) 740-0607
Phone(973) 322-5000
Sole ProprietorNo
Enumeration DateJuly 20, 2006
Last NPPES UpdateJuly 13, 2022
NPPES CertifiedJuly 13, 2022
✔ NPI 1285654244 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
License✔ Licensed in NJ · 25MB05675700
Definition
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
94 OLD SHORT HILLS RD, Livingston, NJ 07039
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Oscar Health Maintenance Organization of Florida.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mark Welber Do is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 Reassignments

6

Medicare enrollment records show Mark Welber reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Rwjbh Observation Associates LLC
Same address
Emergency Medicine
94 OLD SHORT HILLS RD
Livingston, NJ 07039
  • Reassigned Medicare billing, New Jersey enrollment
  • 1,913 clinicians in this Medicare group
NPI 1760095806 (888) 724-7123
Barnabas Health Medical Group PC
8.7 mi
Specialist
225 WILLIAMSON ST
Elizabeth, NJ 07202
  • Reassigned Medicare billing, New Jersey enrollment
  • 1,894 clinicians in this Medicare group
NPI 1841557246 (888) 724-7123
Atlantic Advanced Urgent Care
8.8 mi
Emergency Medicine
465 SOUTH ST STE 200
Morristown, NJ 07960
  • Reassigned Medicare billing, New Jersey enrollment
  • 48 clinicians in this Medicare group
NPI 1104309277 (973) 971-7225
Rwjbh Emergency Medicine Associates, LLC
19 mi
Emergency Medicine
3 EXECUTIVE DR, STE 400
Somerset, NJ 08873
  • Reassigned Medicare billing, New Jersey enrollment
  • 1,557 clinicians in this Medicare group
NPI 1912510041 (732) 867-9618
Intensivist Medicine Services Of Fl, LLC
999 mi
Critical Care Medicine
2901 W SWANN AVE
Tampa, FL 33609
  • Reassigned Medicare billing, Florida enrollment
  • 85 clinicians in this Medicare group
NPI 1235836388 (813) 873-6400
Emergency Medicine Services Of Fl, LLC
1,074 mi
Emergency Medicine
20900 BISCAYNE BLVD
Aventura, FL 33180
  • Reassigned Medicare billing, Florida enrollment
  • 1,912 clinicians in this Medicare group
NPI 1043917180 (305) 682-7000

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 10

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.

Emergency department visit with moderate level of medical decision making 99284
An emergency department visit for a high-severity issue means you're experiencing a serious health problem that needs immediate attention. This could be a severe injury, serious illness, or life-threatening condition. Medical professionals will provide urgent care to stabilize your condition.
215 services212 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
189 services180 patients
Emergency department visit with high level of medical decision making 99285
An emergency department visit for severe conditions is when you urgently seek medical help due to serious health issues. These could be severe injuries, breathing problems, unbearable pain, or sudden severe illness. Doctors and nurses will provide immediate care to stabilize your condition.
138 services137 patients
Electrocardiogram (ecg) 1 to 3 leads with review by physician only 93042
An Electrocardiogram (ECG) is a non-invasive test that records the electrical activity of your heart. 1 to 3 leads or sensors are placed on your body to capture this data. A physician then reviews the results to evaluate your heart's health.
113 services111 patients
Emergency department visit with low level of medical decision making 99283
An emergency department visit for a problem of moderate severity involves immediate medical attention for issues like minor fractures, burns, or high fever. The healthcare team will assess your condition, provide necessary treatment, and may suggest further tests or admission if required.
57 services55 patients
Critical care, first 30-74 minutes 99291
Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.
46 services46 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 07039 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
$98.09 typical visit price
range $63.84 – $190.92
Typical copayment $24.52 (range $15.96 – $47.73)
Most-billed visit code 99203
Established Patient
$111.57 typical visit price
range $20.97 – $155.92
Typical copayment $27.89 (range $5.24 – $38.98)
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.

75/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice

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.

CASSIDY MARTIN DNP
Nurse Practitioner (Gerontology)
94 OLD SHORT HILLS RD
LIVINGSTON, NJ 07039
Essex County (973) 322-2793
HARRY S VANWAGENEN PA-C
Psychiatry & Neurology (Neurology)
94 OLD SHORT HILLS RD
LIVINGSTON, NJ 07039
Essex County (973) 322-5000
CHISOM ENEKEBE
Pharmacist
94 OLD SHORT HILLS RD
LIVINGSTON, NJ 07039
Essex County (862) 438-2289
ASSOCIATES IN TRANSPLANT AND GENERAL SURGERY
Specialist
94 OLD SHORT HILLS RD, EAST WING, SUITE 305
LIVINGSTON, NJ 07039
Essex County (973) 322-9801
TERESITA C REDONDO MD
Pathology (Anatomic Pathology & Clinical Pathology)
94 OLD SHORT HILLS RD
LIVINGSTON, NJ 07039
Essex County (973) 322-5763
DR. GREGORY JOSEPH ROKOSZ D.O.
Emergency Medicine
94 OLD SHORT HILLS RD
LIVINGSTON, NJ 07039
Essex County (973) 322-5733
BILAL KHAN
Internal Medicine (Critical Care Medicine)
94 OLD SHORT HILLS RD
LIVINGSTON, NJ 07039
Essex County (646) 591-5953
MRS. KATHERINE DANIELLE SZUCS APN
Nurse Practitioner
94 OLD SHORT HILLS RD
LIVINGSTON, NJ 07039
Essex County (973) 322-2249

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 Welber's NPI number?

The NPI number for Mark Welber is 1285654244. It was assigned to this individual provider in the NPPES registry on July 20, 2006.

Where is Mark Welber located?

Mark Welber practices at 94 Old Short Hills Rd, Livingston, NJ 07039. The listed phone number is (973) 322-5000.

What is Mark Welber's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Is Mark Welber enrolled in Medicare?

Yes. Mark Welber is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Mark Welber's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mark Welber reassigns Medicare benefits to 6 organizations: Rwjbh Observation Associates LLC (Livingston, NJ), Barnabas Health Medical Group PC (Elizabeth, NJ), Atlantic Advanced Urgent Care (Morristown, NJ), Rwjbh Emergency Medicine Associates, LLC (Somerset, NJ), Intensivist Medicine Services Of Fl, LLC (Tampa, FL) and 1 more organization, listed in the Medicare section above. Each 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 Welber's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Mark Welber accept?

Health plans from Oscar Health Maintenance Organization of Florida list Mark Welber 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.

When was this NPI record last updated?

The NPPES record for Mark Welber was last updated on July 13, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.