Physician

Carl D. Anderton, M.D.

According to 2025 Medicare claims, Carl Anderton, M.D. (NPI: 1912999871) practices internal medicine in the San Angelo, TX market, with the plurality of this provider's patient population coming from Tom Green, TX. This provider's primary affiliated billing organization is SHANNON CLINIC (NPI: 1770587149; TIN: 752600873) and primary practice location at 76903-5919.

Anderton's data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 438 traditional Medicare patients, billed 6,777 HCPCS/CPT codes, and received $180,984 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 12,309 prescription claims across 552 beneficiaries totaling $1,067,770 in drug costs, led by Ozempic (Semaglutide). DME data shows 480 claims. Open Payments data shows 2 records totaling $34. 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 $35,067 and ending at $22,006.

Part B Carrier Billing Trend

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

Year	Patients	Clm Lines	Payment
2015	595	9,007	$202,691
2016	611	10,426	$242,672
2017	596	8,081	$202,373
2018	561	9,036	$191,301
2019	482	10,732	$181,808
2020	436	7,112	$167,737
2021	476	4,340	$140,709
2022	508	5,153	$191,602
2023	431	5,796	$196,481
2024	438	6,777	$180,984

Part D Events Trend

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

Year	Patients	Claims	Drug Cost
2015	458	12,913	$808,240
2016	474	13,154	$798,066
2017	486	13,516	$788,004
2018	509	13,064	$821,140
2019	506	12,232	$758,852
2020	508	12,053	$781,443
2021	505	10,750	$776,470
2022	590	11,197	$793,399
2023	573	11,752	$1,055,861
2024	552	12,309	$1,067,770

DME Billing Trend

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

Year	Patients	Claims	Payment
2015	166	651	$30,208
2016	137	595	$16,140
2017	89	637	$14,677
2018	114	733	$15,567
2019	66	644	$15,550
2020	131	647	$20,187
2021	178	604	$22,582
2022	148	569	$26,627
2023	102	462	$22,061
2024	126	480	$20,368

* / # = 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	225	225	$134
99214	Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	178	210	$76
99213	Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more	280	438	$61
93000	Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report	132	134	$10
36415	Insertion of needle into vein for collection of blood sample	318	772	$8

Top 5 Part D drugs in 2024

By total drug costs.

Drug	Generic	Claims	Total Day Supply	Total Drug Cost
Ozempic	Semaglutide	211	9,061	$281,063
Eliquis	Apixaban	160	7,325	$134,186
Enbrel	Etanercept	14	392	$103,056
Jardiance	Empagliflozin	71	2,910	$55,191
Forteo	Teriparatide	11	330	$44,709

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	74	$6,375
A7031	Face mask interface, replacement for full face mask, each	N	11	30	$2,792
A7030	Full face mask used with positive airway pressure device, each	N	11	28	$2,373
E0601	Continuous positive airway pressure (cpap) device	Y	N/R	49	$1,673
A4604	Tubing with integrated heating element for use with positive airway pressure device	N	17	38	$1,381

Open Payments Summary in 2024

Category	Definition	Records	Total Reported Amount	Top Related Entity
General Payments	Reported payment or transfer-of-value amount.	2	$34	Novartis Pharmaceuticals Corporation
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 Carl D. Anderton, M.D.?

Tedicare shows public-source Medicare data for Carl D. Anderton, M.D. (NPI 1912999871), 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 Carl D. Anderton, 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 Carl D. Anderton, M.D.?

Carl D. Anderton, M.D. is linked to SHANNON CLINIC (billing NPI 1770587149) in the available physician profile data.

Does Carl D. Anderton, M.D. have Open Payments data?

Carl D. Anderton, 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.