DR. THOMAS FRANK MAZZONI D.O.
NPI 1629192463
Otolaryngology - Otolaryngology/Facial Plastic Surgery in Iselin, NJ
About Dr. Thomas Frank Mazzoni D.o. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. THOMAS FRANK MAZZONI D.O. (NPI 1629192463) is an individual otolaryngology/facial plastic surgery provider in Iselin, New Jersey, licensed in New Jersey (25MB08219200) and active in the NPI registry since March 2007. He is enrolled in Medicare PECOS, is affiliated with Robert Wood Johnson University Hospital At Rahway, and is a graduate of Rowan University School Of Osteopathic Medicine (2002).
NPPES Registry Identity
Specialties & Licenses
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. Thomas Frank Mazzoni 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
4Medicare enrollment records show Thomas Mazzoni reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Roselle Park, NJ 07204
- Reassigned Medicare billing, New Jersey enrollment
- 5 clinicians in this Medicare group
Tarrytown, NY 10591
- Reassigned Medicare billing, New Jersey enrollment
- 153 clinicians in this Medicare group
Honesdale, PA 18431
- Reassigned Medicare billing, Pennsylvania enrollment
- 4,429 clinicians in this Medicare group
Tunkhannock, PA 18657
- Reassigned Medicare billing, Pennsylvania enrollment
- Medicare enrollment name: Guthrie Medical Group PC
- 830 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 13
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.
Robert Wood Johnson University Hospital At Rahway
Acute Care Hospitals · Rahway, NJJfk Medical Center
Acute Care Hospitals · Edison, NJMercy Medical Center
Acute Care Hospitals · Rockville Centre, NYReferred 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 Thomas Mazzoni's NPI number?
The NPI number for Thomas Mazzoni is 1629192463. It was assigned to this individual provider in the NPPES registry on March 19, 2007.
Where is Thomas Mazzoni located?
Thomas Mazzoni practices at 485 Route 1 S, Building B Suite 350, Iselin, NJ 08830. The listed phone number is (732) 549-3934.
What is Thomas Mazzoni's specialty?
The primary specialty registered for this NPI is Otolaryngology, specializing in Otolaryngology/Facial Plastic Surgery, with taxonomy code 207YX0905X.
Is Thomas Mazzoni enrolled in Medicare?
Yes. Thomas Mazzoni 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 Thomas Mazzoni's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Thomas Mazzoni reassigns Medicare benefits to 4 organizations: West Scharf Conte Bastianelli PA (Roselle Park, NJ), Ent And Allergy Associates LLP (Tarrytown, NY), Geisinger Clinic (Honesdale, PA) and Guthrie Medical Group, P.C, (Tunkhannock, PA). 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 Thomas Mazzoni's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Thomas Mazzoni affiliated with any hospitals?
According to CMS data, Thomas Mazzoni is affiliated with Robert Wood Johnson University Hospital At Rahway, Jfk Medical Center and Mercy Medical Center.
When was this NPI record last updated?
The NPPES record for Thomas Mazzoni was last updated on December 30, 2021. 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.