Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Dr. Gregory Tiesi, MD

Individual provider Surgical Oncology Physician · NPI 1942464003

Dr. Gregory Tiesi, MD is a Surgical Oncology in Neptune, New Jersey. Qualified in 2007, 19 years ago. Practices with Hackensack Meridian Health Medical Group - Specialty Care PC, a 1,897-clinician group and accepts Medicare assignment. Licensed in New Jersey.

Years since qualifying
19
Licensed in
NJ
In the registry since
2008
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

19 Davis Ave Fl 2
Neptune, NJ 07753-4488
Phone: (732) 776-4770
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Surgical Oncology Physician (primary) Taxonomy 2086X0206X · Licence 25MA09135400 (NJ)

Record details

NPI number1942464003
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 17, 2008
Last updated in NPPESJuly 29, 2025
Certification dateJuly 29, 2025
Mailing address19 Davis Ave Fl 2, Neptune, NJ 07753-4488

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtySURGICAL ONCOLOGY
Medical schoolOTHER
Graduated 2007 (19 years in practice)
Group practice Hackensack Meridian Health Medical Group - Specialty Care Pc — 1897 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations13 on file with Medicare

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