Physician

Ashleigh A Olson, M.D.

According to 2025 Medicare claims, Ashleigh Olson, M.D. (NPI: 1699064238) practices allergy/immunology in the Janesville-Beloit, WI market, with the plurality of this provider's patient population coming from Rock, WI. This provider's primary affiliated billing organization is DEAN HEALTH SYSTEMS, INC (NPI: 1053358846; TIN: 391128616) and primary practice location at 53546-2343. Olson is affiliated with the SSM WI ACO LLC (ACO ID: A5124), participating under the MSSP model.

Olson's data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 97 traditional Medicare patients, billed 7,482 HCPCS/CPT codes, and received $211,803 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 832 prescription claims across 132 beneficiaries totaling $380,558 in drug costs, led by Dupixent Syringe (Dupilumab). DME data shows 42 claims. No Open Payments records. 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 up and down with repeated peaks and valleys, starting at $29,397 and ending at $211,803. Concurrently, Part D prescription costs have moved sharply higher in recent years, from $21,205 to $380,558. In contrast, DME billing represents a smaller volume and moved sharply higher in recent years, from $119 to $3,260.

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	21	1,238	$29,397
2017	80	5,211	$122,882
2018	72	3,253	$93,146
2019	175	7,454	$194,069
2020	90	11,225	$314,189
2021	126	11,823	$311,679
2022	97	8,208	$233,389
2023	67	3,563	$110,119
2024	97	7,482	$211,803

Part D Events Trend

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

Year	Patients	Claims	Drug Cost
2015	26	123	$21,205
2016	19	62	$9,374
2017	43	183	$17,634
2018	47	173	$25,954
2019	119	548	$92,309
2020	101	849	$196,437
2021	132	895	$209,812
2022	108	822	$337,481
2023	114	667	$353,047
2024	132	832	$380,558

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	N/R	N/R
2018	N/R	N/R	N/R
2019	N/R	N/R	N/R
2020	N/R	48	$316
2021	N/R	102	$33,103
2022	N/R	81	$37,938
2023	N/R	11	$63
2024	N/R	42	$71,770

* / # = 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	46	59	$85
J2357	Injection, omalizumab, 5 mg	14	4,635	$30
94010	Test to measure expiratory airflow and volume	35	42	$19
96372	Injection of drug or substance under skin or into muscle	22	135	$10
95165	Professional service for preparation and provision of 1 or more antigens	14	226	$10

Top 5 Part D drugs in 2024

By total drug costs.

Drug	Generic	Claims	Total Day Supply	Total Drug Cost
Dupixent Syringe	Dupilumab	29	798	$107,768
Xolair	Omalizumab	15	420	$78,362
Dupixent Pen	Dupilumab	12	336	$45,876
Dulera	Mometasone/Formoterol	31	1,630	$18,562
Spiriva Respimat	Tiotropium Bromide	19	990	$16,300

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
J1559	Injection, immune globulin (hizentra), 100 mg	N	N/R	14	$68,717
A4222	Infusion supplies for external drug infusion pump, per cassette or bag (list drugs separately)	N	N/R	14	$2,037
A4221	Supplies for maintenance of non-insulin drug infusion catheter, per week (list drugs separately)	N	N/R	14	$1,016

Open Payments Summary

No connected Open Payments records were found for this physician in General Payments, Research Payments, or Ownership / Investment Interests.

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FAQ

What Medicare data is available for Ashleigh A. Olson, M.D.?

Tedicare shows public-source Medicare data for Ashleigh A. Olson, M.D. (NPI 1699064238), 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 Ashleigh A. Olson, M.D. have ACO affiliation data?

Ashleigh A. Olson, M.D. is shown with ACO affiliation data for SSM WI ACO LLC (MSSP, ACO ID A5124).

What billing organization is linked to Ashleigh A. Olson, M.D.?

Ashleigh A. Olson, M.D. is linked to DEAN HEALTH SYSTEMS, INC (billing NPI 1053358846) in the available physician profile data.

Does Ashleigh A. Olson, M.D. have Open Payments data?

No connected Open Payments records are shown for this physician in the available General Payments, Research Payments, or Ownership / Investment Interests 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.