Physician

Timothy Tinyau Chang, MD PHD

According to 2025 Medicare claims, Timothy Chang, MD PHD (NPI: 1740256569) practices orthopedic surgery in the Clarksville, TN-KY market, with the plurality of this provider's patient population coming from Christian, KY. This provider's primary affiliated billing organization is JENNIE STUART MEDICAL CENTER INC (NPI: 1588384671; TIN: 61-0482973) and primary practice location at 42240-1965. Chang is affiliated with the Imperium Clinical Partners (ACO ID: A4945) and Caravan Health ACO 50 LLC (ACO ID: A5160), participating under the MSSP model.

Chang's data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 248 traditional Medicare patients, billed 918 HCPCS/CPT codes, and received $76,072 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 1,042 prescription claims across 344 beneficiaries totaling $8,655 in drug costs, led by Naproxen (Naproxen). 2023 DME data shows 22 claims. Open Payments data shows 8 records totaling $327. 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 did not follow a clear longitudinal pattern. Concurrently, Part D prescription costs have risen steadily, from $2,721 to $8,655. In contrast, DME billing represents a smaller volume and moved up and down with repeated peaks and valleys, starting at $1,591 and ending at $1,569.

Part B Carrier Billing Trend

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

Year	Patients	Clm Lines	Payment
2015	273	1,547	$107,845
2016	363	1,929	$142,308
2017	375	2,209	$145,973
2018	428	3,747	$158,970
2019	458	5,185	$193,692
2020	384	4,084	$138,037
2021	366	4,563	$148,896
2022	312	3,815	$133,504
2023	242	1,285	$83,995
2024	248	918	$76,072

Part D Events Trend

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

Year	Patients	Claims	Drug Cost
2015	142	381	$2,721
2016	254	680	$6,271
2017	313	859	$6,962
2018	376	1,064	$14,124
2019	342	927	$9,251
2020	325	923	$8,477
2021	375	1,138	$34,066
2022	358	1,217	$25,491
2023	343	1,181	$27,771
2024	344	1,042	$8,655

DME Billing Trend

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

Year	Patients	Claims	Payment
2015	29	40	$3,107
2016	34	35	$3,967
2017	12	29	$809
2018	13	47	$1,099
2019	13	13	$4,045
2020	12	13	$2,223
2021	12	41	$2,298
2022	11	13	$556
2023	11	22	$1,766
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	68	80	$69
99203	New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	42	42	$54
99213	Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more	129	185	$43
20610	Aspiration and/or injection of fluid from large joint	95	132	$33
73560	X-ray of knee, 1-2 views	49	57	$6

Top 5 Part D drugs in 2024

By total drug costs.

Drug	Generic	Claims	Total Day Supply	Total Drug Cost
Naproxen	Naproxen	429	13,841	$3,098
Xarelto	Rivaroxaban	18	101	$1,811
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	147	1,150	$878
Acetaminophen-Codeine	Acetaminophen With Codeine	87	600	$609
Celecoxib	Celecoxib	25	750	$337

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.	8	$327	Zimmer Biomet Holdings, 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 Timothy Tinyau Chang, MD PHD?

Tedicare shows public-source Medicare data for Timothy Tinyau Chang, MD PHD (NPI 1740256569), 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 Timothy Tinyau Chang, MD PHD have ACO affiliation data?

Timothy Tinyau Chang, MD PHD is shown with ACO affiliation data for Imperium Clinical Partners (MSSP, ACO ID A4945) and Caravan Health ACO 50 LLC (MSSP, ACO ID A5160).

What billing organization is linked to Timothy Tinyau Chang, MD PHD?

Timothy Tinyau Chang, MD PHD is linked to JENNIE STUART MEDICAL CENTER INC (billing NPI 1588384671) in the available physician profile data.

Does Timothy Tinyau Chang, MD PHD have Open Payments data?

Timothy Tinyau Chang, MD PHD has 8 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.