Physician

William Aiken Chafin, M.D.

According to 2025 Medicare claims, William Chafin, M.D. (NPI: 1225122716) practices rheumatology in the Athens-Clarke County, GA market, with the plurality of this provider's patient population coming from Clarke, GA. This provider's primary affiliated billing organization is SOUTHEASTERN RHEUMATOLOGY ALLIANCE (NPI: 1114795663; TIN: 933460719) and primary practice location at 30677-7306. Chafin is affiliated with the Southeastern Health Partners (ACO ID: A3325), participating under the MSSP model.

Chafin's data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 685 traditional Medicare patients, billed 502,594 HCPCS/CPT codes, and received $3,747,956 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 6,446 prescription claims across 868 beneficiaries totaling $9,241,418 in drug costs, led by Enbrel Sureclick (Etanercept). 2018 DME data shows 22 claims. Open Payments data shows 211 records totaling $4,616. 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 $1,316,542 to $3,747,956. Similarly, Part D prescription costs have moved sharply higher in recent years, from $1,518,319 to $9,241,418. For DME billing, this provider has fewer than 5 years of reported data, so a reliable trend cannot be assigned.

Part B Carrier Billing Trend

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

Year	Patients	Clm Lines	Payment
2015	570	67,932	$1,316,542
2016	583	89,179	$1,683,695
2017	674	186,939	$2,476,210
2018	684	252,308	$3,202,455
2019	657	317,961	$3,303,475
2020	634	342,282	$3,720,227
2021	643	385,786	$3,684,877
2022	666	438,446	$3,518,425
2023	656	444,090	$3,406,135
2024	685	502,594	$3,747,956

Part D Events Trend

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

Year	Patients	Claims	Drug Cost
2015	588	5,682	$1,518,319
2016	650	6,326	$1,568,171
2017	676	6,119	$1,391,862
2018	666	5,810	$1,012,706
2019	705	5,675	$2,029,594
2020	737	5,048	$3,135,660
2021	744	4,968	$4,019,416
2022	770	5,358	$5,398,054
2023	782	5,702	$6,407,652
2024	868	6,446	$9,241,418

DME Billing Trend

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

Year	Patients	Claims	Payment
2015	N/R	N/R	N/R
2016	N/R	N/R	N/R
2017	N/R	N/R	N/R
2018	N/R	22	$1,405
2019	N/R	N/R	N/R
2020	N/R	N/R	N/R
2021	N/R	N/R	N/R
2022	N/R	N/R	N/R
2023	N/R	N/R	N/R
2024	N/R	N/R	N/R

* / # = 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	505	1,305	$89
80053	Blood test, comprehensive group of blood chemicals	314	492	$10
36415	Insertion of needle into vein for collection of blood sample	376	821	$9
85025	Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count	315	495	$8
86140	Measurement c-reactive protein for detection of infection or inflammation	312	482	$5

Top 5 Part D drugs in 2024

By total drug costs.

Drug	Generic	Claims	Total Day Supply	Total Drug Cost
Enbrel Sureclick	Etanercept	354	11,036	$2,870,900
Strensiq	Asfotase Alfa	24	672	$2,088,047
Humira(Cf) Pen	Adalimumab	185	5,350	$1,338,872
Orencia Clickject	Abatacept	174	5,096	$1,019,512
Enbrel	Etanercept	23	1,092	$275,357

Top 5 DME services in 2024

No connected or detailed DME service-level records for 2024.

Open Payments Summary in 2024

Category	Definition	Records	Total Reported Amount	Top Related Entity
General Payments	Reported payment or transfer-of-value amount.	211	$4,616	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 William Aiken Chafin, M.D.?

Tedicare shows public-source Medicare data for William Aiken Chafin, M.D. (NPI 1225122716), 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 William Aiken Chafin, M.D. have ACO affiliation data?

William Aiken Chafin, M.D. is shown with ACO affiliation data for Southeastern Health Partners (MSSP, ACO ID A3325).

What billing organization is linked to William Aiken Chafin, M.D.?

William Aiken Chafin, M.D. is linked to SOUTHEASTERN RHEUMATOLOGY ALLIANCE (billing NPI 1114795663) in the available physician profile data.

Does William Aiken Chafin, M.D. have Open Payments data?

William Aiken Chafin, M.D. has 211 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.