Physician

Thomas G Westbrook, M.D.

According to 2025 Medicare claims, Thomas Westbrook, M.D. (NPI: 1396716775) practices allergy/immunology in the Ocala, FL market, with the plurality of this provider's patient population coming from Marion, FL. This provider's primary affiliated billing organization is PREMIER ALLERGIST OF FLORIDA LLC (NPI: 1427237486; TIN: 591858789) and primary practice location at 32159-2386.

Westbrook's data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 638 traditional Medicare patients, billed 41,574 HCPCS/CPT codes, and received $852,909 in Medicare payments. The top billing code was 99214 (Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more). Part D data shows 1,385 prescription claims across 343 beneficiaries totaling $1,227,082 in drug costs, led by Orladeyo (Berotralstat Hydrochloride). DME data shows 112 claims. Open Payments data shows 342 records totaling $198,948. 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 $229,440 to $852,909. Similarly, Part D prescription costs have moved from a lower plateau to a higher plateau, from $566,650 to $1,227,082. In contrast, DME billing represents a smaller volume and declined steadily, from $24,881 to $4,878.

Part B Carrier Billing Trend

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

Year	Patients	Clm Lines	Payment
2015	532	13,938	$229,440
2016	537	13,317	$204,610
2017	528	12,993	$183,034
2018	554	14,541	$181,465
2019	581	14,398	$181,693
2020	536	13,211	$152,231
2021	557	15,209	$231,155
2022	489	11,627	$131,377
2023	517	15,679	$267,735
2024	638	41,574	$852,909

Part D Events Trend

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

Year	Patients	Claims	Drug Cost
2015	352	2,497	$566,650
2016	367	2,516	$404,745
2017	390	2,766	$457,520
2018	368	2,791	$857,984
2019	372	2,549	$1,563,182
2020	382	2,710	$2,229,972
2021	405	2,457	$2,302,409
2022	365	2,054	$1,533,389
2023	323	2,014	$1,468,920
2024	343	1,385	$1,227,082

DME Billing Trend

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

Year	Patients	Claims	Payment
2015	43	459	$344,705
2016	24	323	$244,627
2017	11	408	$152,370
2018	N/R	285	$203,613
2019	28	353	$237,064
2020	N/R	405	$357,124
2021	N/R	398	$430,969
2022	N/R	283	$289,903
2023	N/R	255	$434,639
2024	N/R	112	$83,662

* / # = 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
99214	Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	310	398	$93
94060	Test to measure expiratory airflow and volume changes before and after medication administration	143	184	$28
94010	Test to measure expiratory airflow and volume	111	118	$20
95165	Professional service for preparation and provision of 1 or more antigens	117	1,325	$10
96160	Administration and interpretation of patient-focused health risk assessment	141	153	$2

Top 5 Part D drugs in 2024

By total drug costs.

Drug	Generic	Claims	Total Day Supply	Total Drug Cost
Orladeyo	Berotralstat Hydrochloride	13	364	$535,337
Dupixent Pen	Dupilumab	40	1,092	$153,861
Cuvitru	Immun Glob G(Igg)/Gly/Iga Ov50	32	896	$81,487
Trelegy Ellipta	Fluticasone/Umeclidin/Vilanter	92	3,210	$66,951
Dupixent Syringe	Dupilumab	15	406	$62,976

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
J1556	Injection, immune globulin (bivigam), 500 mg	N	N/R	23	$69,183
Q2052	Services, supplies and accessories used in the home for the administration of intravenous immune globulin (ivig)	N	N/R	37	$12,197
E1390	Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate	Y	N/R	22	$1,559
E0601	Continuous positive airway pressure (cpap) device	Y	N/R	19	$597
A7038	Filter, disposable, used with positive airway pressure device	N	N/R	11	$126

Open Payments Summary in 2024

Category	Definition	Records	Total Reported Amount	Top Related Entity
General Payments	Reported payment or transfer-of-value amount.	341	$177,448	AstraZeneca Pharmaceuticals LP
Research Payments	Reported research-related payment or transfer-of-value amount.	1	$21,500	SANOFI US SERVICES INC.
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 G. Westbrook, M.D.?

Tedicare shows public-source Medicare data for Thomas G. Westbrook, M.D. (NPI 1396716775), 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 G. Westbrook, 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 G. Westbrook, M.D.?

Thomas G. Westbrook, M.D. is linked to PREMIER ALLERGIST OF FLORIDA LLC (billing NPI 1427237486) in the available physician profile data.

Does Thomas G. Westbrook, M.D. have Open Payments data?

Thomas G. Westbrook, M.D. has 342 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.