Why are Medicare and Medicaid shown separately instead of combined?

They come from two different CMS data sources with no shared claim identifier, so they can't be reconciled into one number without double-counting or guessing. Every table and chart on this page keeps them fully separate.

Why is there no private/commercial revenue figure?

Private and commercial payer data comes from Transparency in Coverage files, which only publish negotiated rates — not claims or utilization volume. Without a volume figure, no revenue number can be computed for any provider from that data.

What does "Rank" mean in the Competitive Analysis & Benchmarks tables?

For a given CPT/HCPCS code, it's this provider's position by claims volume among all providers billing that same code at that geography level (State, National, or South Dakota for Medicaid) — rank 1 means the highest claims volume for that code.

Why is the Medicaid comparison limited to South Dakota only?

Medicaid is administered per-state with no single national fee schedule, so a state or national comparison the way Medicare has one isn't available. South Dakota (this provider's own state) is the only grouping that's conceptually meaningful.

Why are the numbers rounded to the nearest 10?

To avoid implying more precision than the underlying data supports at a single-provider level. Ratios are kept precise since they're a relative comparison, not a volume or dollar figure.

How current is this data?

The Medicare and Medicaid tables are both single current snapshots, not refreshed on a recurring schedule yet.

Dustin Dierks (NPI 1629057666)

Field	Value
Entity Type	Individual
Organization	Dustin Dierks
Address	6601 S Minnesota Ave
City	Sioux Falls
State	SD
ZIP	57108
Taxonomy	Ophthalmology Physician
NPI Enumerated	January 10, 2006

Payer Source	Total Paid
Medicare	$386.9K
Medicaid	$0

Key Findings

Practice revenue is concentrated in cataract surgery and related services: the single largest code is 66984 (cataract extraction with IOL insertion) which generated $154.6K and represents 40.0% of the provider's Medicare revenue, and 66821 (YAG capsulotomy) added $67.3K (17.4%). Together with the comprehensive established-patient visit code 92014 ($37.4K, 9.7%), the top three Medicare codes account for 67.1% of this provider's total Medicare revenue, indicating a surgical-heavy workflow supplemented by routine ophthalmic follow-up.

The provider’s Medicare revenue totals $386.9K while Medicaid revenue is none, so this practice is effectively single-payer in the claims on file and likely relies almost entirely on Medicare beneficiaries for billed services. Absence of any Medicaid billing on file suggests limited engagement with Medicaid populations or billing arrangements not captured here, which has implications for payer diversification and access strategy.

Operational mix shows both high-volume procedural throughput and office-based care: in addition to cataract procedures (66984, 66982), the provider bills high volumes of device- and measurement-related services such as 92136 (IOL biometry) with 507 claims and $15.2K in revenue, consistent with an integrated surgical pathway from pre-op measurement through surgery and post-op laser capsulotomy. The presence of multiple E/M codes (92014, 92004, 99204, 99214) and diagnostic imaging/visual field codes (92134, 92133, 92083) indicates the practice manages both diagnostic follow-up and perioperative care.

Competitive standing is mixed by code: for the top surgical code 66984 the provider ranks #3137 of 15965 (80th percentile) and is described as typical, unremarkable volume nationally, while 66821 ranks #771 of 10087 (92th percentile) but is still labeled typical, unremarkable volume — cumulatively this suggests the provider is a competent, above-median regional contributor for cataract-related services rather than a dominant national center. Diagnostic and measurement codes such as 92136 rank in the 93th percentile and 92014 ranks in the 82th percentile (both described as typical), reinforcing that the practice performs a higher-than-average but not exceptional volume of routine ophthalmic services.

There is a notable statistical outlier in office new-patient evaluations: 99204 produced $26.8K and 253 claims and is flagged as an extreme outlier (99th percentile, far above typical national volume). This pattern suggests an unusually high volume of higher-complexity new-patient consults relative to peers, which may reflect referral patterns, a specialty consult practice component, or concentrated intake of complex cases.

Revenue scale is modest for a surgical ophthalmology practice: total Medicare receipts of $386.9K indicate a smaller practice footprint compared with many high-volume surgical centers, and with top three codes supplying 67.1% of that revenue the business is relatively concentrated. That concentration magnifies exposure to changes in reimbursement or case mix for the cataract bundle and related follow-up procedures.

Tenure and billing history show long-term Medicare participation: the NPI was enumerated on 2006-01-10 (~20 years ago), indicating sustained enrollment and likely stable participation in the Medicare program over two decades. Long tenure supports experience-based referral relationships and an established patient panel consistent with ongoing cataract and ophthalmic care.

Service-line detail suggests predictable care pathways: preoperative measurements (92136), surgical cataract procedures (66984, 66982), and post-op laser capsulotomy (66821) form a contiguous service chain in the billing mix, while concurrent use of diagnostic imaging (92134, 92133) and visual field testing (92083) supports ongoing medical retina/glaucoma surveillance. For payers and network planners, this profile identifies the provider as a reliable source for routine cataract surgery and perioperative ophthalmic services, but with limited Medicaid access based on the claims on file.

Medicare: Complete Services Breakdown

The CPT/HCPCS codes generating the most Medicare revenue for this provider.

16 rows

CPT/HCPCS Code	Description	Claims	Avg Paid	Revenue
66984	The provider inserts an artificial lens after removing an extracapsular cataract by aspiration or use of ultrasonic waves. This procedure is done without the use of an endoscopic laser probe to…	450	$350	$154.6K
66821	The provider removes the haziness from the capsule of the eye using a laser for a patient with a secondary membranous cataract.	220	$300	$67.3K
92014	An ophthalmologist sees an established patient for a comprehensive level eye examination. Generally, a patient is considered to be "established" if the same physician, or any physician in the group…	450	$80	$37.4K
99204	The provider sees a new patient for an office visit or other outpatient visit involving evaluation and management. The visit involves a moderate level of medical decision making, and/or the provider…	250	$110	$26.8K
99214	The provider sees an established patient for an office visit or other outpatient visit involving evaluation and management. The visit involves a moderate level of medical decision making, and/or the…	240	$90	$21.1K
66982	The provider inserts an intraocular lens prosthesis after extracapsular cataract extraction using complex techniques and devices. He may perform this by means of an iris expansion device, providing…	40	$460	$19.2K
92136	The provider uses a noninvasive method to measure the patient’s eye or eyes to get information that the provider then uses to calculate the appropriate power for an intraocular lens (IOL). Selecting…	510	$30	$15.2K
92012	For this CPT code, an Ophthalmologist sees an established patient for an intermediate level eye examination. Generally, a patient is considered to be "established" if the same physician, or any…	140	$70	$8.9K
92004	The provider performs a comprehensive level ophthalmological evaluation of a new patient and initiates a diagnostic and treatment program for one or more visits.	90	$100	$8.8K
92134	The provider performs computerized diagnostic imaging of the retina in the posterior segment (back part) of the eye, interprets the data, and provides a report. The service may be on one or both eyes.	280	$30	$7.6K

Showing 1–10 of 16

Medicare: Competitive Analysis & Benchmarks

How this provider's Medicare billing volume and revenue compare to other providers nationally and within its state, across 16 CPT/HCPCS codes.

View: State1 / 2

Claims Volume vs. South Dakota Distribution

Dustin Dierks — 1 of 16 codes billed far more than typical (above p95)

p5–p95 (all providers)p25–p75MedianThis providerOutlier

Rank Distribution — South Dakota

Full comparison — all codes billed, vs. state median

16 rows

CPT/HCPCS Code	Rank	Provider Count	Median Claims	Avg Paid	Average Revenue
66984	15	130	40	$410	$67.7K
66821	7	30	100	$230	$35.6K
66982	9	20	40	$580	$25K
92014	18	200	170	$80	$17.1K
99214	375	1,660	90	$70	$11.4K
92136	7	30	210	$30	$9.2K
92012	22	90	50	$60	$7.4K
99213	687	1,710	80	$50	$6.4K
92134	18	160	60	$30	$5.8K
99204	10	670	30	$100	$5.1K

Showing 1–10 of 16

Related Providers

Other providers that share a Tax Identification Number (TIN) with Dustin Dierks, ranked by combined Medicare and Medicaid revenue.

Provider	State	Taxonomy	Medicare Revenue	Medicaid Revenue
Chad Laurich	SD	Vascular Surgery Physician	$3.2M	$0
NPI 1588636484	—	—	$3.2M	$0
Ryan Geraets	SD	Ophthalmology Physician	$3M	$0
John Bormes	SD	Ophthalmology Physician	$2.6M	$0
Ophthalmology Ltd Eye Surgery Center L L C	SD	Ambulatory Surgical Clinic/Center	$1.8M	$16.2K
Elizabeth Atchison	SD	Ophthalmology Physician	$1.7M	$0
Ashar Luqman	IA	Nephrology Physician	$1.4M	$0
Taylor Slingsby	SD	Retina Specialist (Ophthalmology) Physician	$1.4M	$0
Ty Hanson	SD	Dermatology Physician	$1.2M	$0
Alexander Ringeisen	MN	Retina Specialist (Ophthalmology) Physician	$1.1M	$0

Nearby Providers

Other providers in the same ZIP code as Dustin Dierks, ranked by combined Medicare and Medicaid revenue.

Provider	State	Taxonomy	Medicare Revenue	Medicaid Revenue
Avera Mckennan	SD	Psychiatry Physician	$0	$9.1M
Vance Thompson Vision Surgery Center Prof LLC	SD	Ambulatory Surgical Clinic/Center	$4.5M	$22.7K
Siouxland Oral Surgery	SD	Oral and Maxillofacial Surgery (Dentist)	$0	$3.9M
Avera Home Medical Equipment, LLC	SD	Durable Medical Equipment & Medical Supplies	$0	$3.4M
Anderson-smith Speech Therapy, LLC	SD	Speech-Language Pathologist	$0	$1.9M
Dakota Vision Center, LLC	SD	Optometrist	$0	$1.2M
Usc Ambulatory Surgical Center Prof LLC	SD	Ambulatory Surgical Clinic/Center	$1.1M	$44.2K
Avera Mckennan	SD	Physical Therapist	$0	$1M
Encompass Mental Health, LLC	SD	Mental Health Counselor	$0	$908.7K
Avera Mckennan	SD	Infectious Disease Physician	$0	$852.9K

Dustin Dierks — Billing Profile & Reimbursement Data

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Key Findings

Medicare: Total Revenue Breakdown by CPT/HCPCS Code

Medicare: Complete Services Breakdown

Medicare: Competitive Analysis & Benchmarks

Related Providers

Nearby Providers

Frequently Asked Questions

References