2026 NPPES data Optometrist NPI 1144219213 OD
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JOHN CONROY, OD

Optometrist in MILBANK, South Dakota. 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
741
Medicare Part D claims · 168 beneficiaries · Optometrist avg: 257
Generic prescribing
64%
generic claims · 36% brand-name · higher generic rates reduce patient out-of-pocket costs
What the federal data reveals: JOHN CONROY, OD is a Optometrist ([object Object]) practicing in MILBANK, South Dakota with a Medicare Part D prescribing footprint of 741 claims across 168 beneficiaries — 36% brand-name prescribing .

What stands out: JOHN CONROY, OD filed 741 Medicare Part D claims in 2023 across MILBANK, South Dakota. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

JOHN CONROY, OD at a glance

Quality data not reported

NPI registry status

Active

Issued 10/20/2005

NPI 1144219213

Primary specialty

Optometrist

High-volume

60,463 US NPIs in this specialty

Medicare Part D claims

741 188% vs specialty avg

2023 prescription claims

Specialty avg: 257

Specialty distribution in South Dakota

How Optometrist compares to other specialties among South Dakota providers

South Dakota providers

Optometrist share within South Dakota

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

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).

JOHN CONROY, OD is a Optometrist provider practicing in MILBANK, South Dakota, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: OD. NPI: 1144219213. 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.

JOHN CONROY, OD appears in the CMS NPPES registry as a Optometrist provider holding OD credentials at 411 S MAIN ST, MILBANK, SD, 57252, with a listed phone of (605) 432-5730. NPI 1144219213 was issued on 10/20/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what CONROY 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 741 prescription claims written by this provider, covering 168 Medicare beneficiaries and totaling roughly $51K in drug spend, split 36% brand-name and 64% 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

411 S MAIN ST
MILBANK, SD 57252

Provider Details

NPI 1144219213
Specialty Optometrist
Credentials OD
Gender Male
NPI Issued 10/20/2005

Brand vs generic prescribing mix · Above average

JOHN CONROY, OD — brand share 36.0%
Specialty average (est.)

36% brand-name claims vs 64% generic, on 741 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.

741
Total Claims
$51K
Total Drug Cost
168
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,091
Total Day Supply
29,599
Brand vs Generic
36% brand / 64% generic
Brand Drug Cost
$39K
Generic Drug Cost
$12K
Antibiotic Claims
22

Patient Demographics

Average Patient Age
77.9 years
Avg HCC Risk Score
1.08
Gender Split
55% female / 45% male

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
372
Dorzolamide-Timolol
Dorzolamide Hcl/Timolol Maleat
57
Timolol Maleate
54
Lumigan
Bimatoprost
37
Bacitracin-Polymyxin
Bacitracin/Polymyxin B Sulfate
27
Combigan
Brimonidine Tartrate/Timolol
26
Prednisolone Acetate
26
Neomycin-Polymyxin-Dexameth
Neomycin/Polymyxin B/Dexametha
18
Brimonidine Tartrate
17
Restasis
Cyclosporine
13

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

Optometrist Overview

How JOHN CONROY, OD fits within the Optometrist landscape nationally.

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

JOHN CONROY, OD's 741 claims are above the specialty average of 257.

Nearby Optometrist Providers in South Dakota

Other clinicians with the same primary specialty enrolled in South Dakota, drawn from the same CMS NPPES roster as CONROY.

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

Frequently Asked Questions

What is JOHN CONROY, OD's specialty?
JOHN CONROY, OD specializes in Optometrist and practices in MILBANK, South Dakota. Credentials: OD.
How much does JOHN CONROY, OD prescribe under Medicare Part D?
In 2023, JOHN CONROY, OD wrote 741 Medicare Part D claims totaling $51K in drug costs for 168 beneficiaries.
Where is JOHN CONROY, OD located?
JOHN CONROY, OD is located at 411 S MAIN ST, MILBANK, SD, 57252. Phone: (605) 432-5730.
What is JOHN CONROY, OD's NPI number?
JOHN CONROY, OD's National Provider Identifier (NPI) is 1144219213, issued on 10/20/2005.
Does JOHN CONROY, OD prescribe more brand-name or generic drugs?
JOHN CONROY, OD's prescribing is 36% brand-name and 64% generic drugs by claim count, with $39K 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 JOHN CONROY, OD prescribe most often?
Based on 2023 Medicare Part D data, JOHN CONROY, OD's most frequently prescribed drugs include Latanoprost, Dorzolamide-Timolol, Timolol Maleate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does JOHN CONROY, OD accept Medicare?
JOHN CONROY, OD appears in CMS Medicare data with 741 Part D claims and 168 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify JOHN CONROY, OD's credentials?
JOHN CONROY, OD's NPI is 1144219213 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