Physician

Donald J Greggain, M.D.

According to 2025 Medicare claims, Donald Greggain, M.D. (NPI: 1154328052) practices family practice in the Lewiston, ID-WA market, with the plurality of this provider's patient population coming from Asotin, WA. This provider's primary affiliated billing organization is ST JOSEPH HOSPITAL LLC (NPI: 1205368404; TIN: 36-4851166) and primary practice location at 83501-2431. Greggain is affiliated with the Caravan Collaborative Pathways (ACO ID: A4604), AdvantagePoint Health Alliance - Northwest, LLC (ACO ID: A5025), Caravan Health ACO 50 LLC (ACO ID: A5160), and Collaborative ACO 30, LLC (ACO ID: A5483), participating under the MSSP model.

Greggain's data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 360 traditional Medicare patients, billed 1,206 HCPCS/CPT codes, and received $72,082 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 10,586 prescription claims across 493 beneficiaries totaling $823,055 in drug costs, led by Eliquis (Apixaban). DME data shows 599 claims. Open Payments data shows 2 records totaling $124. 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 from a lower plateau to a higher plateau, from $6,575 to $72,082. Concurrently, Part D prescription costs have changed little. For DME billing, reported payments moved up and down with repeated peaks and valleys, starting at $56,436 and ending at $49,621.

Part B Carrier Billing Trend

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

Year	Patients	Clm Lines	Payment
2015	36	83	$6,575
2016	16	57	$3,594
2017	31	78	$6,070
2018	27	80	$6,289
2019	450	1,518	$73,992
2020	474	1,365	$68,539
2021	433	1,391	$87,058
2022	408	1,354	$81,916
2023	396	1,406	$70,872
2024	360	1,206	$72,082

Part D Events Trend

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

Year	Patients	Claims	Drug Cost
2015	679	13,526	$932,880
2016	492	12,310	$928,076
2017	484	11,584	$869,980
2018	488	11,113	$870,247
2019	483	11,151	$830,882
2020	493	11,096	$791,993
2021	477	10,861	$880,878
2022	465	10,643	$812,925
2023	511	10,764	$902,920
2024	493	10,586	$823,055

DME Billing Trend

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

Year	Patients	Claims	Payment
2015	209	892	$54,373
2016	231	974	$40,177
2017	192	776	$26,865
2018	138	720	$26,818
2019	105	588	$22,695
2020	138	767	$38,234
2021	175	709	$41,207
2022	115	719	$48,773
2023	196	767	$50,223
2024	143	599	$47,720

* / # = 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	273	273	$118
99214	Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	224	353	$55
99213	Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more	271	423	$37
20610	Aspiration and/or injection of fluid from large joint	14	17	$25

Top 5 Part D drugs in 2024

By total drug costs.

Drug	Generic	Claims	Total Day Supply	Total Drug Cost
Eliquis	Apixaban	61	3,551	$66,825
Januvia	Sitagliptin Phosphate	56	3,330	$56,191
Ozempic	Semaglutide	45	1,652	$47,934
Jardiance	Empagliflozin	40	2,190	$41,704
Trulicity	Dulaglutide	42	1,204	$38,975

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
A4239	Supply allowance for non-adjunctive, non-implanted continuous glucose monitor (cgm), includes all supplies and accessories, 1 month supply = 1 unit of service	N	N/R	46	$17,365
J1817	Insulin for administration through dme (i.e., insulin pump) per 50 units	N	N/R	14	$4,494
E1390	Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate	Y	12	57	$4,234
E0784	External ambulatory infusion pump, insulin	Y	N/R	12	$3,809
A4224	Supplies for maintenance of insulin infusion catheter, per week	N	N/R	15	$3,276

Open Payments Summary in 2024

Category	Definition	Records	Total Reported Amount	Top Related Entity
General Payments	Reported payment or transfer-of-value amount.	2	$124	Phathom Pharmaceuticals, Inc.
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 Donald J. Greggain, M.D.?

Tedicare shows public-source Medicare data for Donald J. Greggain, M.D. (NPI 1154328052), 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 Donald J. Greggain, M.D. have ACO affiliation data?

Donald J. Greggain, M.D. is shown with ACO affiliation data for Caravan Collaborative Pathways (MSSP, ACO ID A4604), AdvantagePoint Health Alliance - Northwest, LLC (MSSP, ACO ID A5025), Caravan Health ACO 50 LLC (MSSP, ACO ID A5160), and Collaborative ACO 30, LLC (MSSP, ACO ID A5483).

What billing organization is linked to Donald J. Greggain, M.D.?

Donald J. Greggain, M.D. is linked to ST JOSEPH HOSPITAL LLC (billing NPI 1205368404) in the available physician profile data.

Does Donald J. Greggain, M.D. have Open Payments data?

Donald J. Greggain, M.D. has 2 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.