Physician

Aaron Michael Gerstenmaier, M.D.

According to 2025 Medicare claims, Aaron Gerstenmaier, M.D. (NPI: 1851602767) practices family practice in the Washington, DC-MD market, with the plurality of this provider's patient population coming from The District, DC. This provider's primary affiliated billing organization is MEDSTAR URGENT CARE LLC (NPI: 1942623319; TIN: 452919679) and primary practice location at 22310-3256. Gerstenmaier is affiliated with the C3 MSSP LLC (ACO ID: A5344), participating under the MSSP model.

Gerstenmaier's data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 45 traditional Medicare patients, billed 90 HCPCS/CPT codes, and received $4,253 in Medicare payments. The top billing code was 83036 (Hemoglobin a1c level). Part D data shows 1,867 prescription claims across 108 beneficiaries totaling $1,031,334 in drug costs, led by Biktarvy (Bictegrav/Emtricit/Tenofov Ala). DME data shows 24 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 fallen sharply in recent years, from $5,181 to $4,253. In contrast, Part D prescription costs have risen steadily, from $652,949 to $1,031,334. For DME billing, reported payments moved up and down with repeated peaks and valleys, starting at $6,191 and ending at $4,324.

Part B Carrier Billing Trend

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

Year	Patients	Clm Lines	Payment
2015	51	155	$5,181
2016	67	130	$6,087
2017	66	164	$9,023
2018	71	170	$10,121
2019	22	41	$956
2020	N/R	N/R	N/R
2021	14	20	$207
2022	N/R	N/R	N/R
2023	N/R	N/R	N/R
2024	45	90	$4,253

Part D Events Trend

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

Year	Patients	Claims	Drug Cost
2015	75	1,580	$652,949
2016	96	1,888	$789,471
2017	106	1,913	$698,400
2018	104	2,092	$785,958
2019	102	2,050	$946,415
2020	97	1,602	$753,344
2021	111	1,555	$889,676
2022	111	1,706	$1,000,280
2023	107	1,705	$1,070,978
2024	108	1,867	$1,031,334

DME Billing Trend

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

Year	Patients	Claims	Payment
2015	N/R	23	$936
2016	N/R	26	$688
2017	N/R	N/R	N/R
2018	N/R	38	$225
2019	N/R	48	$759
2020	N/R	44	$706
2021	N/R	N/R	N/R
2022	N/R	15	$2,774
2023	N/R	11	$2,199
2024	N/R	24	$3,033

* / # = 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
83036	Hemoglobin a1c level	17	39	$10

Top 5 Part D drugs in 2024

By total drug costs.

Drug	Generic	Claims	Total Day Supply	Total Drug Cost
Biktarvy	Bictegrav/Emtricit/Tenofov Ala	81	2,430	$329,589
Descovy	Emtricitabine/Tenofov Alafenam	56	1,680	$124,997
Tivicay	Dolutegravir Sodium	50	1,500	$116,117
Genvoya	Elviteg/Cob/Emtri/Tenof Alafen	17	510	$66,854
Symtuza	Darunavir/Cob/Emtri/Tenof Alaf	14	420	$65,704

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	N/R	13	$2,589
E0260	Hospital bed, semi-electric (head and foot adjustment), with any type side rails, with mattress	Y	N/R	11	$444

Open Payments Summary

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

Explore More Providers

Family practice providers in the Washington, DC-MD market
Providers within practice ZIP code 22310-3256
Providers whose plurality patient county is The District, DC
Providers in District of Columbia whose primary affiliated billing organization is MEDSTAR URGENT CARE LLC
Providers in District of Columbia affiliated with C3 MSSP LLC (MSSP)

FAQ

What Medicare data is available for Aaron Michael Gerstenmaier, M.D.?

Tedicare shows public-source Medicare data for Aaron Michael Gerstenmaier, M.D. (NPI 1851602767), 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 Aaron Michael Gerstenmaier, M.D. have ACO affiliation data?

Aaron Michael Gerstenmaier, M.D. is shown with ACO affiliation data for C3 MSSP LLC (MSSP, ACO ID A5344).

What billing organization is linked to Aaron Michael Gerstenmaier, M.D.?

Aaron Michael Gerstenmaier, M.D. is linked to MEDSTAR URGENT CARE LLC (billing NPI 1942623319) in the available physician profile data.

Does Aaron Michael Gerstenmaier, 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.