Physician

Gregory Tiesi, MD

According to 2025 Medicare claims, Gregory Tiesi, MD (NPI: 1942464003) practices surgical oncology in the Lakewood-New Brunswick, NJ market, with the plurality of this provider's patient population coming from Ocean, NJ. This provider's primary affiliated billing organization is HACKENSACK MERIDIAN HEALTH MEDICAL GROUP - SPECIALTY CARE PC (NPI: 1215989249; TIN: 223376459) and primary practice location at 08724-7732. Tiesi is affiliated with the eBrightHealth ACO (ACO ID: A3053), participating under the MSSP model.

Tiesi's data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 221 traditional Medicare patients, billed 817 HCPCS/CPT codes, and received $199,775 in Medicare payments. The top billing code was 99205 (New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more). Part D data shows 17 prescription claims across 12 beneficiaries totaling $493 in drug costs. 2022 DME data shows 24 claims. Open Payments data shows 6 records totaling $323. You can download detailed data with all billing codes (2015-2024). For more recent data, please contact us.

Over the past 10 years, this provider's Medicare Part B carrier billing has moved up and down with repeated peaks and valleys, starting at $63,810 and ending at $199,775. Concurrently, Part D prescription costs have moved up and down with repeated peaks and valleys, starting at $87 and ending at $493. For DME billing, this provider has fewer than 5 years of reported data, so a reliable trend cannot be assigned.

Part B Carrier Billing Trend

Medicare payment trend, with N of patients and claim lines in the table.

Year	Patients	Clm Lines	Payment
2015	N/R	N/R	N/R
2016	162	422	$63,810
2017	331	898	$161,614
2018	243	582	$119,626
2019	262	552	$115,257
2020	255	536	$119,038
2021	377	683	$139,775
2022	219	431	$90,948
2023	160	641	$139,765
2024	221	817	$199,775

Part D Events Trend

Drug cost trend, with N of patients and prescription claims in the table.

Year	Patients	Claims	Drug Cost
2015	11	12	$87
2016	N/R	11	$327
2017	15	24	$553
2018	23	31	$1,370
2019	15	29	$7,179
2020	22	35	$2,203
2021	22	40	$14,818
2022	16	23	$11,677
2023	N/R	11	$4,359
2024	12	17	$493

DME Billing Trend

Medicare payment trend, with N of patients and DME claim records in the table.

Year	Patients	Claims	Payment
2015	N/R	N/R	N/R
2016	N/R	N/R	N/R
2017	N/R	12	$669
2018	N/R	27	$2,417
2019	N/R	N/R	N/R
2020	N/R	N/R	N/R
2021	N/R	24	$1,412
2022	N/R	24	$1,495
2023	N/R	N/R	N/R
2024	N/R	N/R	N/R

* / # = suppressed by CMS; 0 = reported zero; N/R = not reported or blank.

Top 5 Part B carrier billing codes in 2024

By total payments.

Code	Description	Patients	Clm Lines	Total Payment
99205	New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more	69	69	$177
99215	Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	57	81	$144
99223	Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	56	65	$144
99214	Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	54	63	$105
99231	Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes	49	170	$41

Top 5 Part D drugs in 2024

By total drug costs.

Part D summary data is connected for 2024, but public drug-level costs are not available, so a Top 5 by total drug costs cannot be shown.

Top 5 DME services in 2024

No connected or detailed DME service-level records for 2024.

Open Payments Summary in 2024

Category	Definition	Records	Total Reported Amount	Top Related Entity
General Payments	Reported payment or transfer-of-value amount.	6	$323	Becton, Dickinson and Company
Research Payments	Reported research-related payment or transfer-of-value amount.	0	$0	N/R
Ownership / Investment Interests	Reported value of ownership or investment interests.	0	$0	N/R

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FAQ

What Medicare data is available for Gregory Tiesi, MD?

Tedicare shows public-source Medicare data for Gregory Tiesi, MD (NPI 1942464003), including provider identity, specialty, market context, Medicare Part B activity, Part D prescribing, DME records, Open Payments where available, billing organization details, and ACO affiliation signals where available. Profile data covers 2015-2024, with current attribution based on 2025 claims where available.

Does Gregory Tiesi, MD have ACO affiliation data?

Gregory Tiesi, MD is shown with ACO affiliation data for eBrightHealth ACO (MSSP, ACO ID A3053).

What billing organization is linked to Gregory Tiesi, MD?

Gregory Tiesi, MD is linked to HACKENSACK MERIDIAN HEALTH MEDICAL GROUP - SPECIALTY CARE PC (billing NPI 1215989249) in the available physician profile data.

Does Gregory Tiesi, MD have Open Payments data?

Gregory Tiesi, MD has 6 connected Open Payments records in the available 2024 summary data.

Can I download physician-level Medicare data from Tedicare?

Yes. Tedicare provides sample physician export data and paid custom physician data exports for research, planning, outreach, and market analysis. Exports can include physician profile fields, market and specialty context, billing organization details, ACO affiliation signals where available, and Medicare utilization data.