DR. STEPHEN M. ABO D.O.
NPI 1891717708
Internal Medicine - Hematology & Oncology in Newark, NJ
About Dr. Stephen M. Abo D.o. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. STEPHEN M. ABO D.O. (NPI 1891717708) is an individual hematology & oncology provider in Newark, New Jersey, licensed in New Jersey (25MB07545100) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS, is affiliated with Hackensack University Medical Center, and is a graduate of University Of New England, College Of Osteo Medicine (2001).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 2
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
Dr. Stephen M. Abo D.o. 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.
Medicare Billing Reassignments
2Medicare enrollment records show Stephen Abo reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Montclair, NJ 07042
- Reassigned Medicare billing, New Jersey enrollment
- Medicare enrollment name: Stephen M Abo Do LLC
Elizabeth, NJ 07202
- Reassigned Medicare billing, New Jersey enrollment
- 1,894 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 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.
Hospital Affiliations CMS Care Compare 5
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Hackensack University Medical Center
Acute Care Hospitals · Hackensack, NJClara Maass Medical Center
Acute Care Hospitals · Belleville, NJHackensack Meridian Health, Mountainside Medical
Acute Care Hospitals · Montclair, NJCooperman Barnabas Medical Center
Acute Care Hospitals · Livingston, NJSaint Michael's Medical Center
Acute Care Hospitals · Newark, NJPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 07102 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
Reported Quality Measures
Referred Medical Equipment & Supplies CMS DME claims
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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 Stephen Abo's NPI number?
The NPI number for Stephen Abo is 1891717708. It was assigned to this individual provider in the NPPES registry on July 24, 2006.
Where is Stephen Abo located?
Stephen Abo practices at 111 Central Ave. Cancer Center, Newark, NJ 07102. The listed phone number is (973) 877-2829.
What is Stephen Abo's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.
Is Stephen Abo enrolled in Medicare?
Yes. Stephen Abo 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 organizations bill Medicare for Stephen Abo's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Stephen Abo reassigns Medicare benefits to 2 organizations: Stephen M Abo D O LLC (Montclair, NJ) and Barnabas Health Medical Group PC (Elizabeth, NJ). 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 Stephen Abo's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Stephen Abo accept?
Health plans from Ambetter Health, Ambetter Health of Delaware and Oscar Health list Stephen Abo 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 Stephen Abo affiliated with any hospitals?
According to CMS data, Stephen Abo is affiliated with Hackensack University Medical Center, Clara Maass Medical Center, Hackensack Meridian Health, Mountainside Medical, Cooperman Barnabas Medical Center and Saint Michael's Medical Center.
When was this NPI record last updated?
The NPPES record for Stephen Abo was last updated on June 18, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.