Physician

James R. Mason, M.D.

According to 2025 Medicare claims, James Mason, M.D. (NPI: 1497717730) practices medical oncology in the San Diego-Chula Vista-Carlsbad, CA market, with the plurality of this provider's patient population coming from San Diego, CA. This provider's primary affiliated billing organization is SCRIPPS HEALTH (NPI: 1275899072; TIN: 232380812) and primary practice location at 92037-1027. Mason is affiliated with the Scripps Accountable Care Organization, LLC (ACO ID: A3521), participating under the MSSP model.

Mason's data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 739 traditional Medicare patients, billed 118,518 HCPCS/CPT codes, and received $2,051,679 in Medicare payments. The top billing code was 96413 (Administration of chemotherapy into vein, 1 hour or less). Part D data shows 902 prescription claims across 104 beneficiaries totaling $3,321,763 in drug costs, led by Imbruvica (Ibrutinib). 2023 DME data shows 25 claims. Open Payments data shows 27 records totaling $907. 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 sharply higher in recent years, from $950,954 to $2,051,679. Similarly, Part D prescription costs have moved from a lower plateau to a higher plateau, from $1,104,954 to $3,321,763. 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	461	48,946	$950,954
2016	468	64,056	$1,085,886
2017	452	60,860	$1,069,647
2018	530	58,252	$1,129,728
2019	500	56,099	$1,117,592
2020	464	59,274	$1,275,781
2021	538	98,468	$2,396,494
2022	539	79,503	$2,144,807
2023	608	96,639	$1,963,705
2024	739	118,518	$2,051,679

Part D Events Trend

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

Year	Patients	Claims	Drug Cost
2015	107	617	$1,104,954
2016	106	777	$1,846,937
2017	126	913	$2,475,234
2018	138	980	$3,471,020
2019	154	1,129	$3,494,546
2020	129	1,160	$4,168,931
2021	162	1,153	$3,863,560
2022	156	1,167	$4,827,008
2023	110	716	$3,517,920
2024	104	902	$3,321,763

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	30	$6,163
2018	N/R	30	$4,315
2019	N/R	N/R	N/R
2020	N/R	33	$3,646
2021	N/R	60	$2,939
2022	N/R	56	$1,493
2023	N/R	25	$463
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
96413	Administration of chemotherapy into vein, 1 hour or less	135	263	$117
99214	Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	229	701	$100
99213	Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more	193	292	$71
96365	Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less	162	283	$56
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	205	436	$13

Top 5 Part D drugs in 2024

By total drug costs.

Drug	Generic	Claims	Total Day Supply	Total Drug Cost
Imbruvica	Ibrutinib	50	1,504	$591,873
Lenalidomide	Lenalidomide	26	728	$460,336
Promacta	Eltrombopag Olamine	15	510	$419,302
Rezurock	Belumosudil Mesylate	18	540	$323,384
Vonjo	Pacritinib Citrate	12	360	$292,875

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.	27	$907	Tempus AI, 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 James R. Mason, M.D.?

Tedicare shows public-source Medicare data for James R. Mason, M.D. (NPI 1497717730), 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 James R. Mason, M.D. have ACO affiliation data?

James R. Mason, M.D. is shown with ACO affiliation data for Scripps Accountable Care Organization, LLC (MSSP, ACO ID A3521).

What billing organization is linked to James R. Mason, M.D.?

James R. Mason, M.D. is linked to SCRIPPS HEALTH (billing NPI 1275899072) in the available physician profile data.

Does James R. Mason, M.D. have Open Payments data?

James R. Mason, M.D. has 27 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.