Physician

Gregory A Parker, MD

According to 2025 Medicare claims, Gregory Parker, MD (NPI: 1851392575) practices family practice in the Columbus, GA-AL market, with the plurality of this provider's patient population coming from Muscogee, GA. This provider's primary affiliated billing organization is HORIZONS DIAGNOSTICS, L.L.C. (NPI: 1366443368; TIN: 582470331) and primary practice location at 31904-6818. Parker is affiliated with the Emory Healthcare Network Advantage (ACO ID: A4771), participating under the MSSP model.

Parker's data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 4,076 traditional Medicare patients, billed 59,075 HCPCS/CPT codes, and received $758,598 in Medicare payments. The top billing code was 84443 (Blood test, thyroid stimulating hormone (tsh)). Part D data shows 12,463 prescription claims across 857 beneficiaries totaling $920,210 in drug costs, led by Eliquis (Apixaban). DME data shows 238 claims. Open Payments data shows 101 records totaling $1,837. 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 sharply higher in recent years, from $134,157 to $758,598. Similarly, Part D prescription costs have risen steadily, from $409,649 to $920,210. In contrast, DME billing represents a smaller volume and moved sharply higher in recent years, from $15,798 to $23,983.

Part B Carrier Billing Trend

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

Year	Patients	Clm Lines	Payment
2015	464	3,540	$134,157
2016	464	4,146	$174,592
2017	470	4,673	$167,057
2018	443	5,489	$159,146
2019	436	7,530	$137,542
2020	442	7,784	$130,131
2021	4,334	46,688	$598,382
2022	4,216	50,320	$664,222
2023	4,170	54,536	$713,093
2024	4,076	59,075	$758,598

Part D Events Trend

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

Year	Patients	Claims	Drug Cost
2015	379	10,249	$409,649
2016	412	10,265	$411,223
2017	446	10,317	$433,413
2018	486	10,329	$475,114
2019	485	9,992	$507,898
2020	527	10,457	$617,152
2021	588	10,022	$599,630
2022	612	10,814	$670,823
2023	616	11,357	$832,790
2024	857	12,463	$920,210

DME Billing Trend

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

Year	Patients	Claims	Payment
2015	93	452	$20,539
2016	71	384	$7,441
2017	30	198	$3,614
2018	55	317	$7,006
2019	69	277	$5,344
2020	54	214	$6,284
2021	54	180	$6,340
2022	22	149	$4,886
2023	24	250	$15,288
2024	22	238	$21,860

* / # = 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
84443	Blood test, thyroid stimulating hormone (tsh)	3,667	5,524	$16
80061	Blood test, lipids (cholesterol and triglycerides)	3,860	6,670	$13
80048	Blood test, basic group of blood chemicals (calcium, total)	3,802	6,944	$8
80076	Liver function blood test panel	3,738	6,588	$8
85025	Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count	3,864	6,331	$8

Top 5 Part D drugs in 2024

By total drug costs.

Drug	Generic	Claims	Total Day Supply	Total Drug Cost
Eliquis	Apixaban	113	6,066	$118,345
Ozempic	Semaglutide	88	3,156	$94,964
Januvia	Sitagliptin Phosphate	49	3,690	$66,254
Trelegy Ellipta	Fluticasone/Umeclidin/Vilanter	60	2,640	$54,967
Xarelto	Rivaroxaban	60	2,864	$53,058

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	29	$15,170
E1390	Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate	Y	N/R	24	$1,667
A7030	Full face mask used with positive airway pressure device, each	N	N/R	12	$897
A7031	Face mask interface, replacement for full face mask, each	N	N/R	11	$890
E0601	Continuous positive airway pressure (cpap) device	Y	N/R	31	$722

Open Payments Summary in 2024

Category	Definition	Records	Total Reported Amount	Top Related Entity
General Payments	Reported payment or transfer-of-value amount.	101	$1,837	AstraZeneca Pharmaceuticals LP
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 A. Parker, MD?

Tedicare shows public-source Medicare data for Gregory A. Parker, MD (NPI 1851392575), 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 A. Parker, MD have ACO affiliation data?

Gregory A. Parker, MD is shown with ACO affiliation data for Emory Healthcare Network Advantage (MSSP, ACO ID A4771).

What billing organization is linked to Gregory A. Parker, MD?

Gregory A. Parker, MD is linked to HORIZONS DIAGNOSTICS, L.L.C. (billing NPI 1366443368) in the available physician profile data.

Does Gregory A. Parker, MD have Open Payments data?

Gregory A. Parker, MD has 101 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.