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2026 NPPES data Optometrist NPI 1871596452 O.D.
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Mark Benson, O.D.

Optometrist in De Witt, Iowa.

This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 61,426 in Optometrist, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.

Federal data, no proprietary rating. We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
434
Medicare Part D claims · 114 beneficiaries · Optometrist avg: 279
Generic prescribing
75%
generic claims · 25% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
100/100
▲ 17 pts above national avg 83.5 · Exceptional
Industry payments
$42.28
2 payments · CMS Open Payments (Sunshine Act)
Verify NPI on CMS Methodology
Compiled from official public sources by the editorial process.

What the federal data shows

Mark Benson, O.D. reported a CMS MIPS final score of 100/100 - above the 83.5 national average - and filed 434 Medicare Part D claims in 2024.

100/100
MIPS score · +17 vs avg
434
Part D claims, 2024
75%
generic prescribing
$42.28
industry payments (Sunshine Act)

Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.

Federal trust snapshot

What official records show about Mark Benson, O.D.

Federal records show an active NPI with both Medicare prescribing volume and a measured CMS quality score — objective registry data, not patient reviews.

  • Verified

    NPI registry status

    Active listing in the CMS National Provider Identifier Registry (NPI 1871596452), first enumerated 05/27/2005.

    Source: CMS NPPES

  • Reported

    Medicare Part D participation

    Filed 434 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.

    Source: CMS Part D Prescriber PUF

  • Reported

    CMS quality reporting (MIPS)

    Reported a CMS MIPS final score of 100/100 in the Quality Payment Program — a federal quality measure, not a patient review.

    Source: CMS Quality Payment Program

  • Reported

    Industry payment transparency

    $42.28 in reported industry payments (2 transfers) in 2024 under the federal Sunshine Act — disclosed transfers of value, not a quality rating.

    Source: CMS Open Payments

  • Not in federal data

    Individual sanction lookup

    PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.

    Source: State medical board / FSMB

This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.

CMS NPPES provider registry desk

NPI 1871596452 · Optometrist

NPI-10 · ENUM-LEGACY · TAX-MEGA · MIPS-ELITE · RX-LIGHT · BOOK-LIGHT · PHOTO-FINISH

  • NPI-10 1871596452
  • ENUM-LEGACY 2005
  • TAX-MEGA 61K Optometrist
  • MIPS-ELITE 100/100
  • RX-LIGHT 434
  • BOOK-LIGHT 667 in Iowa
  • PHOTO-FINISH Marcus Appy, O.D. · ±0.0

MIPS final-score neighbourhood

Same-specialty nationwide peers by CMS final score, not geographic proximity

MIPS pts

What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).

Source CMS Quality Payment Program (MIPS) As of 2023

Mark Benson, O.D.'s MIPS score vs every measured U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure. Clinicians whose score CMS assigned without scoring any category are excluded.

100 ≥ 92nd percentile 92% of 454,083 measured providers are in lower value bands

0–10: 8,684 measured providers (2%). Below this entry. 10–20: 3,008 measured providers (1%). Below this entry. 20–30: 3,069 measured providers (1%). Below this entry. 30–40: 2,746 measured providers (1%). Below this entry. 40–50: 2,928 measured providers (1%). Below this entry. 50–60: 5,882 measured providers (1%). Below this entry. 60–70: 13,906 measured providers (3%). Below this entry. 70–80: 94,570 measured providers (21%). Below this entry. 80–90: 129,887 measured providers (29%). Below this entry. 90+: 189,403 measured providers (42%). This entry sits in this band. This provider 0 100 every measured MIPS clinician, bucketed by value

Each bar is a band; taller bars hold more measured providers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

The percentile is a conservative whole-score-point band: it counts only measured clinicians in lower score bands. A CMS MIPS metric is not a recommendation or a clinical-quality rating by PlainDoctor. See methodology § corpus placement.

Source CMS Merit-based Incentive Payment System (MIPS) · 2023

Where Mark Benson, O.D. sits

This provider among optometrist peers

Across the 6,187 optometrist providers who report both Medicare Part D prescribing and a MIPS quality score, Mark Benson, O.D. writes more Part D claims than 57% of them and scores higher on MIPS quality than 90% - placing this provider in the high-volume, high-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.

Lower volume · High qualityHigh volume · High qualityLower volume · Lower qualityHigh volume · Lower quality0255075100024.148.372.496.6Part D claim volume, percentile in specialtyMIPS quality, percentilePoint, Part D claim volume, percentile in specialty: 95 · MIPS quality, percentile: 43Point, Part D claim volume, percentile in specialty: 83 · MIPS quality, percentile: 53Point, Part D claim volume, percentile in specialty: 57 · MIPS quality, percentile: 77Point, Part D claim volume, percentile in specialty: 52 · MIPS quality, percentile: 15Point, Part D claim volume, percentile in specialty: 65 · MIPS quality, percentile: 80Point, Part D claim volume, percentile in specialty: 22 · MIPS quality, percentile: 63Point, Part D claim volume, percentile in specialty: 75 · MIPS quality, percentile: 48Point, Part D claim volume, percentile in specialty: 70 · MIPS quality, percentile: 68Point, Part D claim volume, percentile in specialty: 18 · MIPS quality, percentile: 47Point, Part D claim volume, percentile in specialty: 92 · MIPS quality, percentile: 88Point, Part D claim volume, percentile in specialty: 97 · MIPS quality, percentile: 20Point, Part D claim volume, percentile in specialty: 25 · MIPS quality, percentile: 55Point, Part D claim volume, percentile in specialty: 38 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 93 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 80 · MIPS quality, percentile: 92Point, Part D claim volume, percentile in specialty: 15 · MIPS quality, percentile: 87Point, Part D claim volume, percentile in specialty: 35 · MIPS quality, percentile: 65Point, Part D claim volume, percentile in specialty: 87 · MIPS quality, percentile: 18Point, Part D claim volume, percentile in specialty: 42 · MIPS quality, percentile: 27Point, Part D claim volume, percentile in specialty: 63 · MIPS quality, percentile: 82Point, Part D claim volume, percentile in specialty: 13 · MIPS quality, percentile: 92Point, Part D claim volume, percentile in specialty: 62 · MIPS quality, percentile: 22Point, Part D claim volume, percentile in specialty: 43 · MIPS quality, percentile: 32Point, Part D claim volume, percentile in specialty: 45 · MIPS quality, percentile: 45Point, Part D claim volume, percentile in specialty: 77 · MIPS quality, percentile: 78Point, Part D claim volume, percentile in specialty: 60 · MIPS quality, percentile: 60Point, Part D claim volume, percentile in specialty: 8 · MIPS quality, percentile: 10Point, Part D claim volume, percentile in specialty: 10 · MIPS quality, percentile: 28Point, Part D claim volume, percentile in specialty: 12 · MIPS quality, percentile: 72Point, Part D claim volume, percentile in specialty: 37 · MIPS quality, percentile: 92Point, Part D claim volume, percentile in specialty: 7 · MIPS quality, percentile: 13Point, Part D claim volume, percentile in specialty: 58 · MIPS quality, percentile: 62Point, Part D claim volume, percentile in specialty: 100 · MIPS quality, percentile: 90Point, Part D claim volume, percentile in specialty: 53 · MIPS quality, percentile: 23Point, Part D claim volume, percentile in specialty: 90 · MIPS quality, percentile: 70Point, Part D claim volume, percentile in specialty: 2 · MIPS quality, percentile: 12Point, Part D claim volume, percentile in specialty: 67 · MIPS quality, percentile: 25Point, Part D claim volume, percentile in specialty: 17 · MIPS quality, percentile: 33Point, Part D claim volume, percentile in specialty: 32 · MIPS quality, percentile: 58Point, Part D claim volume, percentile in specialty: 48 · MIPS quality, percentile: 37Point, Part D claim volume, percentile in specialty: 45 · MIPS quality, percentile: 50Point, Part D claim volume, percentile in specialty: 28 · MIPS quality, percentile: 57Point, Part D claim volume, percentile in specialty: 98 · MIPS quality, percentile: 85Point, Part D claim volume, percentile in specialty: 27 · MIPS quality, percentile: 73Point, Part D claim volume, percentile in specialty: 33 · MIPS quality, percentile: 35Point, Part D claim volume, percentile in specialty: 0 · MIPS quality, percentile: 17Point, Part D claim volume, percentile in specialty: 23 · MIPS quality, percentile: 38Point, Part D claim volume, percentile in specialty: 20 · MIPS quality, percentile: 67Point, Part D claim volume, percentile in specialty: 55 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 40 · MIPS quality, percentile: 83Point, Part D claim volume, percentile in specialty: 72 · MIPS quality, percentile: 8Point, Part D claim volume, percentile in specialty: 78 · MIPS quality, percentile: 92Point, Part D claim volume, percentile in specialty: 68 · MIPS quality, percentile: 75Point, Part D claim volume, percentile in specialty: 5 · MIPS quality, percentile: 40Point, Part D claim volume, percentile in specialty: 82 · MIPS quality, percentile: 92Point, Part D claim volume, percentile in specialty: 73 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 30 · MIPS quality, percentile: 52Point, Part D claim volume, percentile in specialty: 3 · MIPS quality, percentile: 42Point, Part D claim volume, percentile in specialty: 88 · MIPS quality, percentile: 30Point, Part D claim volume, percentile in specialty: 85 · MIPS quality, percentile: 0Mark Benson, O.D., Part D claim volume, percentile in specialty: 57 · MIPS quality, percentile: 90
Part D claim volume vs MIPS quality, by specialty percentile

Each dot is one optometrist peer from a representative sample of 60; the gold marker is Mark Benson, O.D.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.

What does the federal data show about Mark Benson, O.D.?

High performer (top quartile)

NPI registry status

Active

Issued 05/27/2005

NPI 1871596452

Primary specialty

Optometrist

High-volume

61,426 US NPIs in this specialty

Medicare Part D claims

434 56% vs specialty avg

2024 prescription claims

Specialty avg: 279

MIPS final score

100/100 16.5 pts vs avg

Exceptional band

vs 83.5 national avg

Specialty distribution in Iowa

How Optometrist compares to other specialties among Iowa providers

Iowa providers
Pharmacist6.5%Physical Therapist5.4%Mental Health Counselor5%Family Medicine Physician4.7%Clinical Social Worker4.2%Chiropractor4.1%Optometrist1.4%
Largest specialties in Iowa (% of in-state providers)

Medicare quality performance, MIPS

Mark Benson, O.D.'s 2023 MIPS final score plotted against the Optometrist national average

High performer (top quartile)
MIPS Final Score
100/100
vs 83.5 national avg · 2023 performance year
0%100%National avg84%99%
MIPS final score (Optometrist) - 100/100 vs national avg 83.5
How MIPS and board certification work

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).

Practice Address

800 6TH AVE
De Witt, IA 52742
(563) 659-3999

Provider Details

NPI 1871596452
Specialty Optometrist
Credentials O.D.
Gender Male
NPI Issued 05/27/2005

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

100
Final Score
Measured-score avg: 83.5
100
Quality

Reporting: Group practice

Industry payments received (2024) - CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for Mark Benson, O.D.. Source: openpaymentsdata.cms.gov.

Total received

$42

Largest payer

LKC Technologies, Inc.

Most common payment type

Food and Beverage

Industry payments are not necessarily indicators of bias, they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

Brand vs generic prescribing mix · Above average

Mark Benson, O.D. - brand share 25.0%
Optometrist average

25% brand-name claims vs 75% generic, on 434 2024 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 2024.

434
Total Claims
$25K
Total Drug Cost
114
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
735.467
Total Day Supply
20,806
Brand vs Generic
25% brand / 75% generic
Brand Drug Cost
$20K
Generic Drug Cost
$5K

Patient Demographics

Average Patient Age
79.1 years
Avg HCC Risk Score
1.10
Gender Split
65% female / 35% male
Age Distribution
<65: 0, 65-74: 34, 75-84: 52, 85+: 28

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.

What Mark Benson, O.D. prescribes most

Top Medicare Part D drugs by claim count, 2024

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2024
Drug Claims
Latanoprost
 240
Timolol Maleate
 74
Brimonidine Tartrate
 22
Acyclovir
 14
Tobramycin-Dexamethasone
Tobramycin/Dexamethasone
13

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

More Optometrist in IA → All providers in Iowa → Compare specialties →

Optometrist Overview

How Mark Benson, O.D. fits within the Optometrist landscape nationally.

61,426
Optometrist Providers in US
56
States with Optometrist
279
Avg Claims per Provider

Mark Benson, O.D.'s 434 claims are above the specialty average of 279.

Nationwide Optometrist peers with similar MIPS or enrollment year

Two federal-record peer sets for Benson, both outside Iowa so the neighborhoods are not geographic containment.

Similar MIPS final score

Nearest same-specialty clinicians by CMS MIPS final score (100 here).

Marcus Appy 100 CA Jennifer Bailey-Martin 100 AL Michael Bradford 100 AL Careen Caputo 100 CA

Same NPPES enumeration year (2005)

Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.

Cedric Mitsui Hilo, HI Christopher Short Pittsburgh, PA Angel Madera Yauco, PR Christopher Brenon Leadington, MO

Nearby Optometrist Providers in Iowa

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

One of 667 Optometrist providers enrolled in Iowa, 5 are shown here.

Dr. Ryan Ackerman
O.D.
Rock Rapids, IA
Dr. Katie Adams
OD
West Union, IA
Dr. Paul Ahern
O.D.
Dyersville, IA
Dr. George Alberhasky
O.D., P.C.
Iowa City, IA
Dr. Troy Albrecht
OD
Marion, IA

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

Frequently Asked Questions

What is Mark Benson, O.D.'s specialty? ▼
Mark Benson, O.D. specializes in Optometrist and practices in De Witt, Iowa. Credentials: O.D..
How much does Mark Benson, O.D. prescribe under Medicare Part D? ▼
In 2024, Mark Benson, O.D. wrote 434 Medicare Part D claims totaling $25K in drug costs for 114 beneficiaries.
What is Mark Benson, O.D.'s Medicare quality score? ▼
Mark Benson, O.D. has a CMS MIPS Final Score of 100/100 (Quality: 100). The average MIPS Final Score across the 454,083 clinicians with at least one published category score is 83.5; clinicians whose score CMS assigned without scoring any category are excluded from that average. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Mark Benson, O.D. located? ▼
Mark Benson, O.D. is located at 800 6TH AVE, De Witt, IA, 52742. Phone: (563) 659-3999.
What is Mark Benson, O.D.'s NPI number? ▼
Mark Benson, O.D.'s National Provider Identifier (NPI) is 1871596452, issued on 05/27/2005.
Does Mark Benson, O.D. prescribe more brand-name or generic drugs? ▼
Mark Benson, O.D.'s prescribing is 25% brand-name and 75% generic drugs by claim count, with $20K in brand drug costs.
How many Optometrist providers are there in the US? ▼
There are 61,426 Optometrist providers across 56 states in the US. The average Optometrist provider writes 279 Medicare Part D claims per year.
What drugs does Mark Benson, O.D. prescribe most often? ▼
Based on 2024 Medicare Part D data, Mark Benson, O.D.'s most frequently prescribed drugs include Latanoprost, Timolol Maleate, Brimonidine Tartrate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Mark Benson, O.D. accept Medicare? ▼
Mark Benson, O.D. appears in CMS Medicare data with 434 Part D claims and 114 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Mark Benson, O.D.'s credentials? ▼
Mark Benson, O.D.'s NPI is 1871596452 with credentials O.D.. 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

View source datasets and methodology notes
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 (2024). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) - 2023 performance year.
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 August 2026 (NPPES) / 2024 (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

Compiled from official public sources by the editorial process.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of August 2026.