Physician

Gregory Park, M.D.

According to 2025 Medicare claims, Gregory Park, M.D. (NPI: 1861497596) practices internal medicine in the Kahului-Wailuku, HI market, with the plurality of this provider's patient population coming from Maui, HI. This provider's primary affiliated billing organization is WAILEA MEDICAL GROUP LLC (NPI: 1497769988; TIN: 204915690) and primary practice location at 96753-6521.

Park's data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 244 traditional Medicare patients, billed 1,513 HCPCS/CPT codes, and received $87,474 in Medicare payments. The top billing code was G0439 (Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit). Part D data shows 5,008 prescription claims across 295 beneficiaries totaling $937,622 in drug costs, led by Revlimid (Lenalidomide). DME data shows 30 claims. Open Payments data shows 3 records totaling $74. 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 changed little. Similarly, Part D prescription costs have changed little. In contrast, DME billing represents a smaller volume and moved up and down with repeated peaks and valleys, starting at $6,367 and ending at $7,953.

Part B Carrier Billing Trend

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

Year	Patients	Clm Lines	Payment
2015	233	1,529	$88,071
2016	219	1,448	$80,080
2017	212	1,743	$75,554
2018	216	2,155	$92,588
2019	218	2,098	$92,936
2020	227	1,790	$84,376
2021	233	1,487	$99,233
2022	247	1,403	$91,827
2023	257	1,439	$94,196
2024	244	1,513	$87,474

Part D Events Trend

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

Year	Patients	Claims	Drug Cost
2015	243	4,662	$780,439
2016	244	4,855	$671,039
2017	238	4,714	$687,042
2018	253	4,998	$889,680
2019	256	5,112	$788,906
2020	259	5,399	$836,187
2021	282	4,967	$927,451
2022	287	4,835	$1,014,944
2023	319	5,020	$900,769
2024	295	5,008	$937,622

DME Billing Trend

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

Year	Patients	Claims	Payment
2015	11	96	$3,785
2016	12	74	$2,354
2017	N/R	60	$1,850
2018	N/R	96	$2,224
2019	N/R	39	$367
2020	N/R	75	$2,600
2021	N/R	141	$5,752
2022	N/R	110	$4,726
2023	N/R	11	$435
2024	N/R	30	$2,751

* / # = 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
G0439	Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	29	29	$116
99214	Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	228	927	$79
G0008	Administration of influenza virus vaccine	48	48	$34
90656	Influenza vaccine, trivalent, split virus, preservative-free, 0.5 ml dosage	33	33	$22
93000	Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report	25	27	$9

Top 5 Part D drugs in 2024

By total drug costs.

Drug	Generic	Claims	Total Day Supply	Total Drug Cost
Revlimid	Lenalidomide	13	339	$216,300
Mounjaro	Tirzepatide	57	2,272	$84,296
Eliquis	Apixaban	50	3,543	$69,784
Jardiance	Empagliflozin	53	3,435	$65,449
Trulicity	Dulaglutide	32	1,518	$49,741

Top 5 DME services in 2024

By Total Medicare Payment Amount.

HCPCS Code	HCPCS Description	Supplier Rental Indicator	Total Supplier Beneficiaries	Total Supplier Claims	Total Medicare Payment Amount
E1390	Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate	Y	N/R	18	$2,269
K0738	Portable gaseous oxygen system, rental; home compressor used to fill portable oxygen cylinders; includes portable containers, regulator, flowmeter, humidifier, cannula or mask, and tubing	Y	N/R	12	$481

Open Payments Summary in 2024

Category	Definition	Records	Total Reported Amount	Top Related Entity
General Payments	Reported payment or transfer-of-value amount.	3	$74	Lilly USA, LLC
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 Park, M.D.?

Tedicare shows public-source Medicare data for Gregory Park, M.D. (NPI 1861497596), 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 Park, M.D. have ACO affiliation data?

No ACO affiliation record is shown in the available Tedicare data for this profile.

What billing organization is linked to Gregory Park, M.D.?

Gregory Park, M.D. is linked to WAILEA MEDICAL GROUP LLC (billing NPI 1497769988) in the available physician profile data.

Does Gregory Park, M.D. have Open Payments data?

Gregory Park, M.D. has 3 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.