Physician

Thomas Guy Parker, M.D.

According to 2025 Medicare claims, Thomas Parker, M.D. (NPI: 1538115399) practices ophthalmology in the Monroe, LA market, with the plurality of this provider's patient population coming from Ouachita, LA. This provider's primary affiliated billing organization is JOSEPH E HUMBLE AND RAYMOND HAIK, PTRS (NPI: 1336178482; TIN: 72-0975592) and primary practice location at 71291-4452.

Parker's data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 1,224 traditional Medicare patients, billed 4,158 HCPCS/CPT codes, and received $235,066 in Medicare payments. The top billing code was 92014 (Established patient complete exam of visual system). Part D data shows 2,583 prescription claims across 597 beneficiaries totaling $374,363 in drug costs, led by Restasis (Cyclosporine). DME data shows 79 claims. Open Payments data shows 2 records totaling $44. 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 fallen sharply in recent years, from $704,101 to $235,066. Concurrently, Part D prescription costs did not follow a clear longitudinal pattern. In contrast, DME billing represents a smaller volume and changed little.

Part B Carrier Billing Trend

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

Year	Patients	Clm Lines	Payment
2015	1,990	9,608	$704,101
2016	2,036	9,959	$679,051
2017	2,000	9,576	$659,872
2018	1,960	7,235	$573,878
2019	1,921	6,696	$553,755
2020	1,649	5,640	$429,424
2021	1,407	4,489	$343,804
2022	1,330	4,534	$312,038
2023	1,281	4,300	$269,422
2024	1,224	4,158	$235,066

Part D Events Trend

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

Year	Patients	Claims	Drug Cost
2015	1,085	4,781	$457,142
2016	1,011	4,915	$493,295
2017	1,047	5,259	$509,828
2018	929	4,886	$454,161
2019	908	4,533	$495,114
2020	853	4,214	$612,611
2021	748	3,561	$696,793
2022	715	3,244	$561,706
2023	665	2,867	$426,609
2024	597	2,583	$374,363

DME Billing Trend

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

Year	Patients	Claims	Payment
2015	303	303	$18,477
2016	342	342	$19,714
2017	340	340	$20,550
2018	278	278	$16,136
2019	121	122	$7,119
2020	94	94	$5,970
2021	52	55	$3,076
2022	32	32	$2,088
2023	72	72	$4,991
2024	67	79	$5,737

* / # = 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
92014	Established patient complete exam of visual system	943	964	$72
92012	Established patient problem focused exam of visual system	285	377	$52
92136	Measurement of corneal curvature and depth of eye	130	336	$17
92134	Imaging of retina	301	664	$12
92133	Imaging of optic nerve	239	552	$11

Top 5 Part D drugs in 2024

By total drug costs.

Drug	Generic	Claims	Total Day Supply	Total Drug Cost
Restasis	Cyclosporine	110	5,025	$99,451
Lumigan	Bimatoprost	54	1,878	$22,781
Cyclosporine	Cyclosporine	37	1,665	$19,563
Prednisolone Acetate	Prednisolone Acetate	279	9,792	$15,395
Xiidra	Lifitegrast	13	630	$12,713

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
V2020	Frames, purchases	N	38	38	$2,218
V2303	Spherocylinder, trifocal, plano to plus or minus 4.00d sphere, .12-2.00d cylinder, per lens	N	14	15	$1,688
V2203	Spherocylinder, bifocal, plano to plus or minus 4.00d sphere, .12 to 2.00d cylinder, per lens	N	15	15	$1,124
V2200	Sphere, bifocal, plano to plus or minus 4.00d, per lens	N	N/R	11	$707

Open Payments Summary in 2024

Category	Definition	Records	Total Reported Amount	Top Related Entity
General Payments	Reported payment or transfer-of-value amount.	2	$44	ABBVIE 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 Thomas Guy Parker, M.D.?

Tedicare shows public-source Medicare data for Thomas Guy Parker, M.D. (NPI 1538115399), 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 Thomas Guy Parker, 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 Thomas Guy Parker, M.D.?

Thomas Guy Parker, M.D. is linked to JOSEPH E HUMBLE AND RAYMOND HAIK, PTRS (billing NPI 1336178482) in the available physician profile data.

Does Thomas Guy Parker, M.D. have Open Payments data?

Thomas Guy Parker, 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.