Physician

Adrian On-Ning Ma, MD

According to 2025 Medicare claims, Adrian Ma, MD (NPI: 1952305971) practices cardiology in the San Jose-Sunnyvale-Santa Clara, CA market, with the plurality of this provider's patient population coming from Santa Clara, CA. Ma uses personal NPI as billing NPI and primary practice location at 95116-1588.

Ma's data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 568 traditional Medicare patients, billed 6,402 HCPCS/CPT codes, and received $990,888 in Medicare payments. The top billing code was 78492 (Nuclear medicine studies of blood flow in heart muscle at rest and with stress). Part D data shows 6,107 prescription claims across 798 beneficiaries totaling $1,457,385 in drug costs, led by Eliquis (Apixaban). 2015 DME data shows 28 claims. Open Payments data shows 16 records totaling $1,663. 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. Concurrently, Part D prescription costs have moved from a lower plateau to a higher plateau, from $523,897 to $1,457,385. In contrast, DME billing represents a smaller volume and moved sharply higher in recent years, from $185 to $243.

Part B Carrier Billing Trend

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

Year	Patients	Clm Lines	Payment
2015	764	16,095	$736,838
2016	745	16,908	$761,011
2017	825	17,944	$856,338
2018	842	18,128	$937,677
2019	901	19,704	$1,042,926
2020	698	13,282	$747,067
2021	794	14,585	$1,000,000
2022	792	14,319	$1,000,940
2023	681	11,485	$1,029,539
2024	568	6,402	$990,888

Part D Events Trend

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

Year	Patients	Claims	Drug Cost
2015	597	6,699	$523,897
2016	660	6,946	$597,775
2017	707	6,849	$714,262
2018	773	6,734	$878,222
2019	840	6,980	$943,932
2020	793	7,148	$1,044,025
2021	835	7,331	$1,220,807
2022	876	6,831	$1,434,445
2023	855	6,039	$1,503,671
2024	798	6,107	$1,457,385

DME Billing Trend

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

Year	Patients	Claims	Payment
2015	N/R	28	$251
2016	N/R	N/R	N/R
2017	N/R	N/R	N/R
2018	N/R	N/R	N/R
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
78492	Nuclear medicine studies of blood flow in heart muscle at rest and with stress	206	207	$1,702
99215	Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	276	389	$181
93306	Ultrasound of heart with color-depicted blood flow, rate, direction and valve function	488	502	$164
99214	Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	357	546	$128
93000	Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report	406	435	$14

Top 5 Part D drugs in 2024

By total drug costs.

Drug	Generic	Claims	Total Day Supply	Total Drug Cost
Eliquis	Apixaban	751	40,471	$761,202
Xarelto	Rivaroxaban	181	11,804	$205,612
Entresto	Sacubitril/Valsartan	145	7,050	$148,349
Jardiance	Empagliflozin	100	5,234	$94,076
Multaq	Dronedarone Hcl	39	2,400	$60,729

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.	16	$1,663	Medtronic, 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 Adrian On-Ning Ma, MD?

Tedicare shows public-source Medicare data for Adrian On-Ning Ma, MD (NPI 1952305971), 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 Adrian On-Ning Ma, MD have ACO affiliation data?

No ACO affiliation record is shown in the available Tedicare data for this profile.

What billing organization is linked to Adrian On-Ning Ma, MD?

A separate primary affiliated billing organization is not shown for this profile in the available data.

Does Adrian On-Ning Ma, MD have Open Payments data?

Adrian On-Ning Ma, MD has 16 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.