DR. T J MERCURO MD
NPI 1851320634
Internal Medicine - Cardiovascular Disease in Princeton, NJ
About Dr. T J Mercuro Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. T J MERCURO MD (NPI 1851320634) is an individual cardiovascular disease provider in Princeton, New Jersey, licensed in New Jersey (25MA04835700) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS, is affiliated with University Medical Center Of Princeton At Plainsboro, and maintains a secondary practice location in Princeton.
NPPES Registry Identity
Specialties & Licenses 3
Other Names 1
Secondary Practice Location 1
Other Identifiers 17
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. T J Mercuro 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
4Medicare enrollment records show T Mercuro reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Princeton, NJ 08540
- Reassigned Medicare billing, New Jersey enrollment
- 3 clinicians in this Medicare group
Princeton, NJ 08540
- Reassigned Medicare billing, New Jersey enrollment
- 249 clinicians in this Medicare group
Plainsboro, NJ 08536
- Reassigned Medicare billing, New Jersey enrollment
- 42 clinicians in this Medicare group
Hillsborough, NJ 08844
- Reassigned Medicare billing, New Jersey enrollment
- 793 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 11
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 4
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, NJCentrastate Medical Center
Acute Care Hospitals · Freehold, NJTemple University Hospital
Acute Care Hospitals · Philadelphia, PAHospital Of Univ Of Pennsylvania
Acute Care Hospitals · Philadelphia, PAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 08540 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
Other Providers at the Same Location NPPES 7
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
PRINCETON, NJ 08540
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 T Mercuro's NPI number?
The NPI number for T Mercuro is 1851320634. It was assigned to this individual provider in the NPPES registry on July 2, 2006. The provider is also known as T John Mercuro MD.
Where is T Mercuro located?
T Mercuro practices at 389 Wall St, Princeton, NJ 08540. The listed phone number is (609) 921-2800.
What is T Mercuro's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.
Is T Mercuro enrolled in Medicare?
Yes. T Mercuro 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 T Mercuro's services?
According to the CMS Revalidation Reassignment List (October 2026 release), T Mercuro reassigns Medicare benefits to 4 organizations: Princeton Interventional Cardiology PA (Princeton, NJ), Princeton Healthcare Affiliated Physicians PC (Princeton, NJ), Princeton Healthcare Provider Group LLC (Plainsboro, NJ) and Clinical Health Care Associates Of New Jersey, PC (Hillsborough, 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 T Mercuro's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does T Mercuro accept?
Health plans from Oscar Health list T Mercuro 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 T Mercuro affiliated with any hospitals?
According to CMS data, T Mercuro is affiliated with University Medical Center Of Princeton At Plainsboro, Centrastate Medical Center, Temple University Hospital and Hospital Of Univ Of Pennsylvania.
When was this NPI record last updated?
The NPPES record for T Mercuro was last updated on December 23, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 months 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. T J Mercuro, MD · NPI 1851320634
Cardiovascular Disease physician in Princeton, New Jersey. Individual provider, active in the CMS NPPES registry since July 2, 2006.
## Identity
- **NPI:** 1851320634 (Entity type: Individual)
- **Enumerated:** July 2, 2006
- **Primary specialty:** Internal Medicine - Cardiovascular Disease · taxonomy 207RC0000X
- **State license:** 25MA04835700 (New Jersey)
- **Sole proprietor:** No
## Practice location
- **Address:** 389 WALL ST, Princeton, NJ 08540-1516
- **Phone:** (609) 921-2800 · **Fax:** (609) 921-3499
## 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:** 4 organizations under Medicare reassignment (form CMS-855R): Princeton Interventional Cardiology PA (NPI 1154353902, Princeton, NJ); Princeton Healthcare Affiliated Physicians PC (NPI 1821225624, Princeton, NJ); Princeton Healthcare Provider Group LLC (NPI 1699141507, Plainsboro, NJ); Clinical Health Care Associates Of New Jersey, PC (NPI 1962977249, Hillsborough, NJ) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Rutgers R W Johnson Medical School, class of 1985
## Record status
- **NPPES last updated:** December 23, 2025
- **Other identifiers:** Other 223258770; Medicaid 7634102 (NJ); Other 561376; and 14 more
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Source: [NPI Profile](https://npiprofile.com/npi/1851320634) · Data from the CMS NPPES public registry.