DR. GREGORY TIESI (MD) – Surgery Physician, NPI 1942464003

DR. GREGORY TIESI (MD) is a healthcare provider. based in Newark, Delaware. specializing in SURGICAL ONCOLOGY. They hold the professional credentials MD. They hold a License No. 25MA09135400 (NJ). The NPI Number for DR. GREGORY TIESI (MD) is 1942464003

Main info

Male
19 Years Of Experience
Accepts Medicare Assignment
Name
DR. GREGORY TIESI (MD)
NPI
1942464003
Phone
(302) 658-7533
Address
4701 OGLETOWN STANTON RD
Enumeration Date
17 July 2008
Last Update Date
29 July 2025

Doctor Profile

Medical School Name
OTHER
Secondary Phone
7327764755
Graduation Year
2007 (19 years ago)
PAC ID
7315239811
Group Practice PAC ID
9133032519
Professional Enrollment ID
I20220808003514
Address ID
NJ087247732BR425XXBLVD434
Data current as of
20 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience68
Completeness85
Years active:17State licenses:1Digital endpointsOther names

11 SURGICAL ONCOLOGY in DE

Provider Addresses for DR. GREGORY TIESI (MD)

  • 4701 OGLETOWN STANTON RD

    #4000

    NEWARK, DE 197132055

    Phone: (302) 658-7533

    Type: Mailing

  • 19 DAVIS AVE FL 2

    NEPTUNE, NJ 077534488

    Phone: (732) 776-4770

    Type: Mailing

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

CMS reports 15 Open Payments records for all available years, with a total value of $854.

Total Amount is formed as General ($854) + Research ($0) + Ownership ($0) = $854.

Last reported payment date: 2024-10-16 • Largest payer in this snapshot: Ethicon US, LLC ($196).

Total Amount

$854

General + Research + Ownership

Payments

15

Total payment records

General Amount

$854

General payments

Research Amount

$0

Research funding

Ownership Amount

$0

Ownership interests

Ownership Count

0

Ownership records

Last Payment Date

2024-10-16

Latest reported date

View all Open Payments →|Open Payments Risk Radar →

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

PECOS enrollment status

Participating (accepts Medicare assignment)

Enrollment effective: 2022-08-08

PECOS data refreshed: 2026-05-27

Medicare revalidation (CMS due date list)

Due date not assigned yet

CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.

Enrollment records

1

Earliest due date

Not assigned (TBD)

CMS data updated

2026-06-01

Revalidation progress

  1. Medicare enrolled
  2. On CMS revalidation list
  3. Due date assigned
  4. Revalidate in PECOS

CMS enrollment records

Enrollment IDTypeSpecialtyStateDue date
I20220808003514ISurgical OncologyNJTBD

What to do next

  • No action required while the due date shows TBD.
  • Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
  • Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.

Verify on CMS Revalidation Lookup Tool

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

Top Medicare procedures (2023) · refreshed 2026-05-27

HCPCSDescriptionServicesBeneficiariesMedicare allowed
99231Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes13843$0
99215Established patient office or other outpatient visit, 40-54 minutes6548$0
99223Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes6357$0
99205New patient office or other outpatient visit, 60-74 minutes5151$0
99232Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes4628$0
View full utilization report →

Insurance plans in this area (ZIP 19713)

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Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.
PAC ID: 9133032519View full group profile
NameSpecialtyState
-NY
-NJ
Geriatric Medicine, Internal MedicineNJ
Nurse PractitionerNJ
Physician AssistantNJ
Vascular SurgeryNY
Physician AssistantNJ
Physician AssistantNY
Orthopedic SurgeryNJ
General SurgeryNJ

Reviews

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Frequently asked questions

Can I cross-check DR. GREGORY TIESI (MD) using NPI 1942464003?
NPI 1942464003 belongs to DR. GREGORY TIESI (MD); compare other details if you need extra assurance.
Is DR. GREGORY TIESI (MD) shown as active in public data?
Registry records indicate DR. GREGORY TIESI (MD) maintains an active NPI.
How would a patient describe DR. GREGORY TIESI (MD)'s focus?
For DR. GREGORY TIESI (MD), the primary taxonomy reads as Surgery Physician. Clinical services aligned with this taxonomy classification.
What locale is associated with DR. GREGORY TIESI (MD)?
Directory geography for DR. GREGORY TIESI (MD) centers on Newark, Delaware.
Can I trust this NPI listing for DR. GREGORY TIESI (MD)?
The listing is sourced from the national NPI registry. If something looks off, compare with NPPES and the clinic's website.

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