Physician

Allyn Lawerence Mcmillan, NP

Nurse practitioner Wichita Falls, TX Wichita Falls Gastroenterology Associates

According to 2025 Medicare claims, Allyn Lawerence Mcmillan, NP (NPI: 1457836140) practices nurse practitioner in the Wichita Falls, TX market, with the plurality of this provider's patient population coming from Wichita, TX. This provider's primary affiliated billing organization is Wichita Falls Gastroenterology Associates (NPI: 1265489298; TIN: ).

Mcmillan's data goes back to 2012 and runs through 2026. For example, in 2023, this provider had 1,456 traditional Medicare patients, billed 1,848 HCPCS/CPT codes, and received $115,032 in Medicare payments. Part D data shows 3,267 prescription claims across 998 beneficiaries totaling $836,024 in drug costs, and DME data shows 34 claims. Open Payments data shows 164 records totaling $2,933.

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Download physician data with all billing codes (2014-2023) - $9 per 100 physicians.

10-Year Trend of Part B billing

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

Year	Patients	Services	Medicare Payment
2014	Not reported for this year	Not reported for this year	Not reported for this year
2015	Not reported for this year	Not reported for this year	Not reported for this year
2016	Not reported for this year	Not reported for this year	Not reported for this year
2017	Not reported for this year	Not reported for this year	Not reported for this year
2018	Not reported for this year	Not reported for this year	Not reported for this year
2019	302	725	$29,515
2020	427	856	$42,475
2021	625	877	$50,251
2022	1,237	1,657	$97,227
2023	1,456	1,848	$115,032

10-Year Trend of Part D records

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

Year	Patients	Claims	Drug Cost
2014	Not reported for this year	Not reported for this year	Not reported for this year
2015	Not reported for this year	Not reported for this year	Not reported for this year
2016	Not reported for this year	Not reported for this year	Not reported for this year
2017	Not reported for this year	Not reported for this year	Not reported for this year
2018	Not reported for this year	Not reported for this year	Not reported for this year
2019	150	379	$19,497
2020	313	1,821	$169,310
2021	402	1,398	$104,366
2022	731	2,249	$500,162
2023	998	3,267	$836,024

10-Year Trend of DME records

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

Year	Patients	Claims	Medicare Payment
2014	Not reported for this year	Not reported for this year	Not reported for this year
2015	Not reported for this year	Not reported for this year	Not reported for this year
2016	Not reported for this year	Not reported for this year	Not reported for this year
2017	Not reported for this year	Not reported for this year	Not reported for this year
2018	Not reported for this year	Not reported for this year	Not reported for this year
2019	Not reported for this year	Not reported for this year	Not reported for this year
2020	15	38	$3,166
2021	15	64	$5,108
2022	Not reported for this year	32	$3,138
2023	Not reported for this year	34	$3,281

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	34	45	$3,281
Durable medical equipment	Not reported for this year	34	45	$3,281
Prosthetics, orthotics, and supplies	Not reported for this year	0	0	$0
DME drugs	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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