Physician

Ya-Yu Lee, MD

According to 2025 Medicare claims, Ya-Yu Lee, MD (NPI: 1235271545) practices endocrinology in the Allentown-Bethlehem-Easton, PA-NJ market, with the plurality of this provider's patient population coming from Lehigh, PA. This provider's primary affiliated billing organization is LEHIGH VALLEY PHYSICIAN GROUP (NPI: 1013081876; TIN: 232700908) and primary practice location at 18103-6268. Lee is affiliated with the Lehigh Valley Health Network Accountable Care Organization, LLC (ACO ID: A2735), participating under the MSSP model.

Lee's data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 927 traditional Medicare patients, billed 40,621 HCPCS/CPT codes, and received $858,182 in Medicare payments. The top billing code was 99204 (New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more). Part D data shows 2,555 prescription claims across 492 beneficiaries totaling $1,001,334 in drug costs, led by Ozempic (Semaglutide). DME data shows 345 claims. Open Payments data shows 2 records totaling $232. 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 $201,069 to $858,182. Concurrently, Part D prescription costs did not follow a clear longitudinal pattern. In contrast, DME billing represents a smaller volume and moved from a lower plateau to a higher plateau, from $10,751 to $73,858.

Part B Carrier Billing Trend

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

Year	Patients	Clm Lines	Payment
2015	769	10,534	$201,069
2016	947	21,482	$348,623
2017	1,021	26,296	$430,966
2018	1,205	31,997	$532,302
2019	1,064	38,868	$633,044
2020	1,100	40,588	$684,991
2021	1,064	48,836	$857,222
2022	973	49,529	$881,542
2023	835	46,557	$851,945
2024	927	40,621	$858,182

Part D Events Trend

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

Year	Patients	Claims	Drug Cost
2015	437	2,980	$1,144,437
2016	511	3,205	$1,257,978
2017	525	3,609	$1,491,270
2018	582	3,973	$1,840,901
2019	549	3,421	$1,657,172
2020	554	3,592	$1,712,423
2021	579	3,570	$1,501,621
2022	552	3,242	$1,406,831
2023	500	2,973	$1,509,184
2024	492	2,555	$1,001,334

DME Billing Trend

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

Year	Patients	Claims	Payment
2015	304	735	$22,010
2016	276	667	$19,691
2017	239	550	$27,536
2018	261	691	$67,100
2019	236	705	$74,296
2020	243	802	$106,628
2021	178	765	$111,645
2022	149	661	$95,992
2023	127	664	$109,089
2024	85	345	$79,169

* / # = 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
99204	New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	61	61	$105
99214	Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	718	783	$81
J0897	Injection, denosumab, 1 mg	355	37,320	$20
96372	Injection of drug or substance under skin or into muscle	357	630	$9
J3489	Injection, zoledronic acid, 1 mg	58	290	$5

Top 5 Part D drugs in 2024

By total drug costs.

Drug	Generic	Claims	Total Day Supply	Total Drug Cost
Ozempic	Semaglutide	96	4,564	$147,012
Trulicity	Dulaglutide	101	3,618	$122,225
Jardiance	Empagliflozin	83	5,961	$111,982
Metformin Er Gastric	Metformin Hcl	15	450	$81,153
Mounjaro	Tirzepatide	49	2,164	$80,067

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
A4239	Supply allowance for non-adjunctive, non-implanted continuous glucose monitor (cgm), includes all supplies and accessories, 1 month supply = 1 unit of service	N	34	124	$51,610
E0784	External ambulatory infusion pump, insulin	Y	N/R	29	$9,439
J1817	Insulin for administration through dme (i.e., insulin pump) per 50 units	N	N/R	23	$6,242
A4238	Supply allowance for adjunctive, non-implanted continuous glucose monitor (cgm), includes all supplies and accessories, 1 month supply = 1 unit of service	N	N/R	12	$5,478
A4224	Supplies for maintenance of insulin infusion catheter, per week	N	N/R	14	$3,277

Open Payments Summary in 2024

Category	Definition	Records	Total Reported Amount	Top Related Entity
General Payments	Reported payment or transfer-of-value amount.	2	$232	Lilly USA, LLC
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 Ya-Yu Lee, MD?

Tedicare shows public-source Medicare data for Ya-Yu Lee, MD (NPI 1235271545), 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 Ya-Yu Lee, MD have ACO affiliation data?

Ya-Yu Lee, MD is shown with ACO affiliation data for Lehigh Valley Health Network Accountable Care Organization, LLC (MSSP, ACO ID A2735).

What billing organization is linked to Ya-Yu Lee, MD?

Ya-Yu Lee, MD is linked to LEHIGH VALLEY PHYSICIAN GROUP (billing NPI 1013081876) in the available physician profile data.

Does Ya-Yu Lee, MD have Open Payments data?

Ya-Yu Lee, MD 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.