DR. MARK LEWIS DUNLEAVY MD
NPI 1689165318
Orthopaedic Surgery - Adult Reconstructive Orthopaedic Surgery in Princeton, NJ
About Dr. Mark Lewis Dunleavy Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MARK LEWIS DUNLEAVY MD (NPI 1689165318) is an individual adult reconstructive orthopaedic surgery provider in Princeton, New Jersey, licensed in New Jersey (25MA12311800) and active in the NPI registry since May 2018. He is enrolled in Medicare PECOS, is affiliated with University Medical Center Of Princeton At Plainsboro, and is a graduate of Other (2018).
NPPES Registry Identity
Specialties & Licenses 2
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. Mark Lewis Dunleavy 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.
Medicare Billing Reassignments
2Medicare enrollment records show Mark Dunleavy reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Somerset, NJ 08873
- Reassigned Medicare billing, New Jersey enrollment
- 287 clinicians in this Medicare group
Rockford, IL 61107
- Reassigned Medicare billing, Illinois enrollment
- 562 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 9
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 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
University Medical Center Of Princeton At Plainsboro
Acute Care Hospitals · Plainsboro, NJCapital Health Medical Center - Hopewell
Acute Care Hospitals · Pennington, NJRobert Wood Johnson University Hospital At Hamilton
Acute Care Hospitals · Hamilton, NJOther Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
PRINCETON, NJ 08540
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 Dunleavy's NPI number?
The NPI number for Mark Dunleavy is 1689165318. It was assigned to this individual provider in the NPPES registry on May 29, 2018.
Where is Mark Dunleavy located?
Mark Dunleavy practices at 325 Princeton Ave, Princeton, NJ 08540. The listed phone number is (609) 924-8131.
What is Mark Dunleavy's specialty?
The primary specialty registered for this NPI is Orthopaedic Surgery, specializing in Adult Reconstructive Orthopaedic Surgery, with taxonomy code 207XS0114X.
Is Mark Dunleavy enrolled in Medicare?
Yes. Mark Dunleavy 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 Mark Dunleavy's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mark Dunleavy reassigns Medicare benefits to 2 organizations: Orthonj LLC (Somerset, NJ) and Orthomidwest, PLLC (Rockford, IL). 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 Dunleavy's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Mark Dunleavy affiliated with any hospitals?
According to CMS data, Mark Dunleavy is affiliated with University Medical Center Of Princeton At Plainsboro, Capital Health Medical Center - Hopewell and Robert Wood Johnson University Hospital At Hamilton.
When was this NPI record last updated?
The NPPES record for Mark Dunleavy was last updated on August 26, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Dr. Mark Lewis Dunleavy, MD · NPI 1689165318
Adult Reconstructive Orthopaedic Surgery physician in Princeton, New Jersey. Individual provider, active in the CMS NPPES registry since May 29, 2018.
## Identity
- **NPI:** 1689165318 (Entity type: Individual)
- **Enumerated:** May 29, 2018
- **Primary specialty:** Orthopaedic Surgery - Adult Reconstructive Orthopaedic Surgery · taxonomy 207XS0114X
- **State license:** 25MA12311800 (New Jersey)
- **Sole proprietor:** No
## Practice location
- **Address:** 325 PRINCETON AVE, Princeton, NJ 08540-1617
- **Phone:** (609) 924-8131
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Orthonj LLC (NPI 1720557432, Somerset, NJ); Orthomidwest, PLLC (NPI 1730136474, Rockford, IL) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2018
## Record status
- **NPPES last updated:** August 26, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1689165318) · Data from the CMS NPPES public registry.