2026 NPPES data Optometrist NPI 1942787791 OD
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AARON BUSENBARK, OD

Optometrist in DULUTH, Minnesota. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
391
Medicare Part D claims · 89 beneficiaries · Optometrist avg: 257
Generic prescribing
67%
generic claims · 33% brand-name · higher generic rates reduce patient out-of-pocket costs
What the federal data reveals: AARON BUSENBARK, OD is a Optometrist ([object Object]) practicing in DULUTH, Minnesota with a Medicare Part D prescribing footprint of 391 claims across 89 beneficiaries — 33% brand-name prescribing .

What stands out: AARON BUSENBARK, OD filed 391 Medicare Part D claims in 2023 across DULUTH, Minnesota. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

AARON BUSENBARK, OD at a glance

Quality data not reported

NPI registry status

Active

Issued 07/24/2018

NPI 1942787791

Primary specialty

Optometrist

High-volume

60,463 US NPIs in this specialty

Medicare Part D claims

391 52% vs specialty avg

2023 prescription claims

Specialty avg: 257

Specialty distribution in Minnesota

How Optometrist compares to other specialties among Minnesota providers

Minnesota providers

Optometrist share within Minnesota

1. Optometrist42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Optometrist share within Minnesota

Specialty board-certification context

Estimated specialty board-certified rate — Optometrist (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Optometrist ABMS/AOA estimate

Est. board-certified rate (Optometrist) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Optometrist) — ABMS / AOA estimate

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

AARON BUSENBARK, OD is a Optometrist provider practicing in DULUTH, Minnesota, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: OD. NPI: 1942787791. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

AARON BUSENBARK, OD appears in the CMS NPPES registry as a Optometrist provider holding OD credentials at 400 E 3RD ST, DULUTH, MN, 55805, with a listed phone of (218) 786-8364. NPI 1942787791 was issued on 07/24/2018. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what BUSENBARK most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 391 prescription claims written by this provider, covering 89 Medicare beneficiaries and totaling roughly $36K in drug spend, split 33% brand-name and 67% generic by claim count. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Optometrist is a high-volume specialty nationwide, with 60,463 enrolled providers across 56 states and an average of 257 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

400 E 3RD ST
DULUTH, MN 55805

Provider Details

NPI 1942787791
Specialty Optometrist
Credentials OD
Gender Male
NPI Issued 07/24/2018

Hospital and facility affiliations

Facilities where AARON BUSENBARK, OD bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" — a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

THE DULUTH CLINIC LTD
DULUTH, MN

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

Brand vs generic prescribing mix · Above average

AARON BUSENBARK, OD — brand share 33.0%
Specialty average (est.)

33% brand-name claims vs 67% generic, on 391 2023 Medicare Part D claims.

The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

391
Total Claims
$36K
Total Drug Cost
89
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
666
Total Day Supply
18,545
Brand vs Generic
33% brand / 67% generic
Brand Drug Cost
$30K
Generic Drug Cost
$6K

Patient Demographics

Average Patient Age
72.6 years
Avg HCC Risk Score
1.18
Gender Split
63% female / 37% male
Age Distribution
<65: 13, 65-74: 36, 75-84: 29, 85+: 11

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

Drug Claims
Latanoprost
174
Timolol Maleate
43
Dorzolamide-Timolol
Dorzolamide Hcl/Timolol Maleat
36
Restasis
Cyclosporine
20
Alphagan P
Brimonidine Tartrate
15
Brimonidine Tartrate
15
Erythromycin
Erythromycin Base
13
Moxifloxacin
Moxifloxacin Hcl
13
Prednisolone Acetate
12
Cyclosporine
11

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Optometrist Overview

How AARON BUSENBARK, OD fits within the Optometrist landscape nationally.

60,463
Optometrist Providers in US
56
States with Optometrist
257
Avg Claims per Provider

AARON BUSENBARK, OD's 391 claims are above the specialty average of 257.

Nearby Optometrist Providers in Minnesota

Other clinicians with the same primary specialty enrolled in Minnesota, drawn from the same CMS NPPES roster as BUSENBARK.

Compare Optometrist nationally: see state-by-state distribution →

Frequently Asked Questions

What is AARON BUSENBARK, OD's specialty?
AARON BUSENBARK, OD specializes in Optometrist and practices in DULUTH, Minnesota. Credentials: OD.
How much does AARON BUSENBARK, OD prescribe under Medicare Part D?
In 2023, AARON BUSENBARK, OD wrote 391 Medicare Part D claims totaling $36K in drug costs for 89 beneficiaries.
Where is AARON BUSENBARK, OD located?
AARON BUSENBARK, OD is located at 400 E 3RD ST, DULUTH, MN, 55805. Phone: (218) 786-8364.
What is AARON BUSENBARK, OD's NPI number?
AARON BUSENBARK, OD's National Provider Identifier (NPI) is 1942787791, issued on 07/24/2018.
Does AARON BUSENBARK, OD prescribe more brand-name or generic drugs?
AARON BUSENBARK, OD's prescribing is 33% brand-name and 67% generic drugs by claim count, with $30K in brand drug costs.
How many Optometrist providers are there in the US?
There are 60,463 Optometrist providers across 56 states in the US. The average Optometrist provider writes 257 Medicare Part D claims per year.
What drugs does AARON BUSENBARK, OD prescribe most often?
Based on 2023 Medicare Part D data, AARON BUSENBARK, OD's most frequently prescribed drugs include Latanoprost, Timolol Maleate, Dorzolamide-Timolol. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does AARON BUSENBARK, OD accept Medicare?
AARON BUSENBARK, OD appears in CMS Medicare data with 391 Part D claims and 89 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify AARON BUSENBARK, OD's credentials?
AARON BUSENBARK, OD's NPI is 1942787791 with credentials OD. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology