Physician

Adam N Williams, MD

Allergy/immunology Bend, OR Bend Memorial Clinic PC

According to 2025 Medicare claims, Adam N. Williams, MD (NPI: 1265433445) practices allergy/immunology in the Bend, OR market, with the plurality of this provider's patient population coming from Deschutes, OR. This provider's primary affiliated billing organization is Bend Memorial Clinic PC (NPI: 1699827477; TIN: ).

Williams' data goes back to 2012 and runs through 2026. For example, in 2023, this provider had 301 traditional Medicare patients, billed 48,956 HCPCS/CPT codes, and received $1,260,701 in Medicare payments. Part D data shows 1,132 prescription claims across 236 beneficiaries totaling $1,344,561 in drug costs, and DME data shows 45 claims. Open Payments data shows 129 records totaling $34,522.

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10-Year Trend of Part B billing

Medicare payment trend, with patients and services in the table.

Year	Patients	Services	Medicare Payment
2014	273	7,432	$136,378
2015	300	11,965	$240,866
2016	332	13,025	$316,531
2017	335	18,387	$416,061
2018	301	25,301	$633,222
2019	335	36,623	$888,525
2020	342	44,556	$1,178,168
2021	325	47,320	$1,423,992
2022	312	51,529	$1,595,531
2023	301	48,956	$1,260,701

10-Year Trend of Part D records

Prescription claims trend, with patients and drug cost in the table.

Year	Patients	Claims	Drug Cost
2014	303	1,697	$176,065
2015	324	1,572	$164,669
2016	363	1,737	$652,793
2017	334	1,619	$587,580
2018	316	1,493	$250,828
2019	293	1,354	$303,159
2020	269	1,249	$517,531
2021	251	1,220	$982,510
2022	236	1,109	$1,237,205
2023	236	1,132	$1,344,561

10-Year Trend of DME records

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

Year	Patients	Claims	Medicare Payment
2014	19	100	$5,406
2015	14	84	$5,244
2016	13	75	$4,179
2017	13	55	$2,057
2018	Not reported for this year	42	$1,283
2019	Not reported for this year	23	$954
2020	Not reported for this year	55	$1,165
2021	Not reported for this year	38	$881
2022	Not reported for this year	66	$1,224
2023	Not reported for this year	45	$556

Top 5 Part B billing codes in 2023

By N of patients.

No connected Part B code-level records for 2023.

Top 5 Part D drugs in 2023

By N of patients.

No connected Part D drug-level records for 2023.

Top 5 DME in 2023

By N of patients.

DME	Patients	Claims	Services	Medicare Payment
All DME supplier activity	Not reported for this year	59	8,840	$111,776
Durable medical equipment	Not reported for this year	45	95	$556
DME drugs	Not reported for this year	13	3,224	$200
Prosthetics, orthotics, and supplies	Not reported for this year	0	0	$0

DME category summary is shown when item-level DME rows are not connected.

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Part B billing, Part D prescribing, DME records, yearly summaries, source JSON, and source notes.

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