Physician

Eng Keong Tan, M.D

According to 2025 Medicare claims, Eng Tan, M.D (NPI: 1811339013) practices endocrinology in the Carson City, NV market, with the plurality of this provider's patient population coming from Carson City, NV. This provider's primary affiliated billing organization is CARSON TAHOE PHYSICIAN CLINICS (NPI: 1023265717; TIN: 02-0566741) and primary practice location at 89703-0001. Tan is affiliated with the Silver State ACO LLC (ACO ID: A2251), participating under the MSSP model.

Tan's data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 531 traditional Medicare patients, billed 2,350 HCPCS/CPT codes, and received $129,060 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 3,844 prescription claims across 725 beneficiaries totaling $2,802,772 in drug costs, led by Crysvita (Burosumab-Twza). DME data shows 685 claims. Open Payments data shows 62 records totaling $1,811. 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 moved sharply higher in recent years, from $91,924 to $2,802,772. For DME billing, reported payments moved sharply higher in recent years, from $240 to $254,215.

Part B Carrier Billing Trend

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

Year	Patients	Clm Lines	Payment
2015	N/R	N/R	N/R
2016	N/R	N/R	N/R
2017	N/R	N/R	N/R
2018	125	603	$43,562
2019	336	2,097	$143,624
2020	380	2,039	$143,237
2021	422	1,947	$155,440
2022	516	2,068	$144,167
2023	473	2,055	$113,286
2024	531	2,350	$129,060

Part D Events Trend

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

Year	Patients	Claims	Drug Cost
2015	99	777	$91,924
2016	116	971	$100,947
2017	106	725	$104,503
2018	139	843	$139,469
2019	244	1,954	$851,047
2020	325	2,993	$1,399,635
2021	421	3,176	$2,118,167
2022	529	3,563	$2,678,171
2023	584	3,043	$2,264,076
2024	725	3,844	$2,802,772

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	28	$288
2017	39	82	$821
2018	40	105	$1,123
2019	128	391	$58,227
2020	203	804	$131,350
2021	202	1,021	$180,059
2022	215	1,225	$227,528
2023	186	1,267	$256,587
2024	203	685	$265,758

* / # = 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	52	52	$117
99214	Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	499	1,116	$90
99213	Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more	34	39	$62
95251	Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report	166	409	$25
G2211	Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's	382	709	$12

Top 5 Part D drugs in 2024

By total drug costs.

Drug	Generic	Claims	Total Day Supply	Total Drug Cost
Crysvita	Burosumab-Twza	32	952	$544,857
Ozempic	Semaglutide	223	12,288	$382,312
Trulicity	Dulaglutide	121	7,070	$231,314
Jardiance	Empagliflozin	144	11,430	$218,778
Mounjaro	Tirzepatide	118	5,700	$196,443

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	126	492	$221,253
J1817	Insulin for administration through dme (i.e., insulin pump) per 50 units	N	11	27	$14,090
A4224	Supplies for maintenance of insulin infusion catheter, per week	N	14	45	$12,964
E0784	External ambulatory infusion pump, insulin	Y	N/R	24	$7,990
E2103	Non-adjunctive, non-implanted continuous glucose monitor or receiver	N	21	21	$4,749

Open Payments Summary in 2024

Category	Definition	Records	Total Reported Amount	Top Related Entity
General Payments	Reported payment or transfer-of-value amount.	62	$1,811	Amgen 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

Explore More Providers

FAQ

What Medicare data is available for Eng Keong Tan, M.D?

Tedicare shows public-source Medicare data for Eng Keong Tan, M.D (NPI 1811339013), 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 Eng Keong Tan, M.D have ACO affiliation data?

Eng Keong Tan, M.D is shown with ACO affiliation data for Silver State ACO LLC (MSSP, ACO ID A2251).

What billing organization is linked to Eng Keong Tan, M.D?

Eng Keong Tan, M.D is linked to CARSON TAHOE PHYSICIAN CLINICS (billing NPI 1023265717) in the available physician profile data.

Does Eng Keong Tan, M.D have Open Payments data?

Eng Keong Tan, M.D has 62 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.