Gregory Tiesi, MD
Surgical Oncology Physician · Neptune, NJ
Gregory Tiesi, MD is a surgical oncology physician with a practice address in Neptune, New Jersey, and NPI 1942464003, issued on Jul 17, 2008. Check the license (New Jersey 25MA09135400, as entered in NPPES) on the New Jersey State Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Gregory Tiesi
- Credential
- MD
- Primary taxonomy
- Surgical Oncology Physician 2086X0206X
- License number
- 25MA09135400 NJ
Self-reported in NPPES; status is on the state search - Practice location
- 19 Davis Ave FL 2, Neptune, NJ 07753
- Phone
- (732) 776-4770
- Enumerated
- Jul 17, 2008
- Record last updated
- Jul 29, 2025
- Medicare enrollment
- Enrolled (PECOS I20220808003514); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest surgical oncology physician records → All 69 in New Jersey → Look up another NPI →
Also registered at 19 Davis Ave FL 2
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ruchi Bhatt, D.O.Hematology & Oncology Physician1265773865
- Mary Lynn Breslin, A-GNP-CNurse Practitioner1205543774
- Kelly Fitzpatrick, MDMedical Oncology Physician1083860944
- Sarina Keogh, PA-CPhysician Assistant1326466129
- Danielle Lann, MDEndocrinology, Diabetes & Metabolism Physician1417116682
Verify Gregory Tiesi in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNew Jersey State Board of Medical Examiners
Search for license 25MA09135400Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
80% fewer Medicare Part D claims than the average surgical oncology physician in 2024
17 Medicare Part D claims for 12 beneficiaries, against an average of 87 among the 1,237 providers of this specialty who prescribed in Part D.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $322.50
6 payments; by number, the most common kind was food and beverage; the largest payer was Becton, Dickinson and Company. The 1,132 providers of this specialty with any payment received $4,224.74 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Hackensack Meridian Health Medical Group - Specialty Care PCRed Bank, NJ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gregory Tiesi among 69 surgical oncology physician records in New Jersey
Gregory Tiesi, MD is one of 69 surgical oncology physician records with a practice address in New Jersey. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 51% of them.
- NPI issued2008 · 51% of these records are older, 30% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 71% of these records are
- Graduated2007 · median 2004 among the 49 with a school on file
- Record last updated2025 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2086X0206X and a New Jersey practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Surgical Oncology Physician providers in New Jersey
There are 69 surgical oncology physician records in New Jersey.
All 69 in New Jersey → Every provider in Neptune → Surgical Oncology Physician nationwide →
The 8 surgical oncology physician records with the nearest ZIP codes
- Ronald Matteotti, MDNeptune, NJ 077531356546683
- Anthony Scholer, MD, FACS, FSSO, M.BSNeptune, NJ 077531306105994
- Manpreet Kohli, M.D.Long Branch, NJ 077401205097581
- Mary Martucci, DOFreehold, NJ 077281568478915
- Jonathan Lee, MDTeaneck, NJ 076661639253354
- Matthew Suh, MDNewton, NJ 078601720085707
- Diana Addis, MDSparta, NJ 078711235241597
- Cherif Boutros, M.D.Englewood, NJ 076311912105495
Common questions
What is Gregory Tiesi, MD's NPI number?
Gregory Tiesi, MD's National Provider Identifier (NPI) is 1942464003, issued on Jul 17, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Gregory Tiesi, MD located?
The NPPES record lists a practice address at 19 Davis Ave FL 2, Neptune, NJ, 07753. Phone: (732) 776-4770. Providers update this record themselves, so call before visiting.
How can I verify Gregory Tiesi, MD's license?
NPPES lists New Jersey license number 25MA09135400, as entered by the provider. Search the New Jersey State Board of Medical Examiners at https://newjersey.mylicense.com/verification/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Gregory Tiesi, MD prescribe under Medicare Part D?
In 2024, Gregory Tiesi, MD had 17 Medicare Part D claims for 12 beneficiaries; the average among surgical oncology physician prescribers was 87. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.