Physician

Katherine M Marshall, OD

Optometrist South Bend-Mishawaka, IN-MI Southwest Vision Center Inc

According to 2025 Medicare claims, Katherine M. Marshall, OD (NPI: 1255740239) practices optometrist in the South Bend-Mishawaka, IN-MI market, with the plurality of this provider's patient population coming from Cass, MI. This provider's primary affiliated billing organization is Southwest Vision Center Inc (NPI: 1871852939; TIN: ).

Marshall's data goes back to 2012 and runs through 2026. For example, in 2023, this provider had 119 traditional Medicare patients, billed 236 HCPCS/CPT codes, and received $14,066 in Medicare payments. Part D data shows 118 prescription claims across 54 beneficiaries totaling $13,129 in drug costs. Open Payments data shows 2 records totaling $37.

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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	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	102	134	$8,966
2018	156	228	$13,754
2019	129	192	$11,694
2020	145	248	$13,294
2021	165	258	$13,524
2022	138	224	$11,460
2023	119	236	$14,066

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	14	$768
2017	Not reported for this year	15	$872
2018	13	24	$2,687
2019	21	42	$7,126
2020	33	101	$20,070
2021	38	114	$22,135
2022	41	132	$12,958
2023	54	118	$13,129

10-Year Trend of DME records

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

No connected records

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.

No connected DME records for 2023.

Physician Data Export

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

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