NPI registry status
Active
2026 NPPES data Optometrist NPI 1780689067 O.D.
Verify on CMS → Dana Day, O.D.
Optometrist in Casper, Wyoming.
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
339
Medicare Part D claims · 106 beneficiaries · Optometrist avg: 279
Generic prescribing
55%
generic claims · 45% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Dana Day, O.D. filed 339 Medicare Part D claims in 2024 as an Optometrist in Casper, Wyoming, prescribing 55% generic.
- 339
- Part D claims, 2024
- 55%
- generic prescribing
- ≥56th
- pct by Part D claim volume (lower-bound band)
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 Dana Day, O.D.
Federal records show an active NPI with Medicare Part D prescribing activity — verifiable registry data, not a proprietary rating.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1780689067), first enumerated 06/14/2005.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 339 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Hospital affiliations
1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- 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 1780689067 · Optometrist
NPI-10 · ENUM-LEGACY · TAX-MEGA · RX-LIGHT · BOOK-THIN · PHOTO-ENUM
- NPI-10 1780689067
- ENUM-LEGACY 2005
- TAX-MEGA 61K Optometrist
- RX-LIGHT 339
- BOOK-THIN 146 in Wyoming
- PHOTO-ENUM Abraham Akel, OD · 2005
Dana Day, O.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
339 ≥ 56th percentile 56% of 1,416,883 prescribers are in lower value bands
Each bar is a band; taller bars hold more prescribers. 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 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2024
What does the federal data show about Dana Day, O.D.?
Quality data not reportedPrimary specialty
Optometrist
Medicare Part D claims
339 22% vs specialty avg
Specialty distribution in Wyoming
How Optometrist compares to other specialties among Wyoming providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Optometrist. Verify directly:
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
Provider Details
| NPI | 1780689067 |
|---|---|
| Specialty | Optometrist |
| Credentials | O.D. |
| Gender | Male |
| NPI Issued | 06/14/2005 |
Hospital and facility affiliations
Facilities where Dana Day, O.D. 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.
Eye Institute OF Wyoming
Casper, WY
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
Dana Day, O.D. - brand share 45.0%
Optometrist average
45% brand-name claims vs 55% generic, on 339 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.
339
Total Claims
$27K
Total Drug Cost
106
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 466.733
- Total Day Supply
- 11,827
- Brand vs Generic
- 45% brand / 55% generic
- Brand Drug Cost
- $24K
- Generic Drug Cost
- $3K
- Antibiotic Claims
- 16
Patient Demographics
- Average Patient Age
- 76.2 years
- Avg HCC Risk Score
- 1.04
- Gender Split
- 63% female / 37% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Dana Day, O.D. prescribes most
Top Medicare Part D drugs by claim count, 2024
- Latanoprost
Latanoprost
88 claims
- Neomycin-Polymyxin…
Neomycin-Polymyxin-Dexameth
40 claims
- Prednisolone Acetate
Prednisolone Acetate
39 claims
- Brimonidine Tartrate 31
Brimonidine Tartrate
31 claims
- Lumigan 24
Lumigan
24 claims
- Loteprednol Etabon… 22
Loteprednol Etabonate
22 claims
| Drug | Claims |
|---|---|
| Latanoprost | 88 |
| Neomycin-Polymyxin-Dexameth Neomycin/Polymyxin B/Dexametha | 40 |
| Prednisolone Acetate | 39 |
| Brimonidine Tartrate | 31 |
| Lumigan Bimatoprost | 24 |
| Loteprednol Etabonate | 22 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Optometrist Overview
How Dana Day, O.D. fits within the Optometrist landscape nationally.
61,426
Optometrist Providers in US
56
States with Optometrist
279
Avg Claims per Provider
Dana Day, O.D.'s 339 claims are above the specialty average of 279.
Nationwide Optometrist peers with similar MIPS or enrollment year
Two federal-record peer sets for Day, both outside Wyoming so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2005)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Optometrist Providers in Wyoming
Other clinicians with the same primary specialty enrolled in Wyoming, drawn from the same CMS NPPES roster as Day.
One of 146 Optometrist providers enrolled in Wyoming, 5 are shown here.
Dr. Terry Adams
O.D.
Torrington, WY
Dr. Jessica Albers
O.D.
Cheyenne, WY
Dr. Alvin Albert
OD
Cheyenne, WY
Dr. Ashley Alden
O.D.
Casper, WY
Dr. Tracy Ammann
O.D.
Riverton, WY
Compare Optometrist nationally: see state-by-state distribution →
Frequently Asked Questions
What is Dana Day, O.D.'s specialty? ▼
Dana Day, O.D. specializes in Optometrist and practices in Casper, Wyoming. Credentials: O.D..
How much does Dana Day, O.D. prescribe under Medicare Part D? ▼
In 2024, Dana Day, O.D. wrote 339 Medicare Part D claims totaling $27K in drug costs for 106 beneficiaries.
Where is Dana Day, O.D. located? ▼
Dana Day, O.D. is located at 301 S FENWAY ST, Casper, WY, 82601. Phone: (307) 235-5384.
What is Dana Day, O.D.'s NPI number? ▼
Dana Day, O.D.'s National Provider Identifier (NPI) is 1780689067, issued on 06/14/2005.
Does Dana Day, O.D. prescribe more brand-name or generic drugs? ▼
Dana Day, O.D.'s prescribing is 45% brand-name and 55% generic drugs by claim count, with $24K 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 Dana Day, O.D. prescribe most often? ▼
Based on 2024 Medicare Part D data, Dana Day, O.D.'s most frequently prescribed drugs include Latanoprost, Neomycin-Polymyxin-Dexameth, Prednisolone Acetate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Dana Day, O.D. accept Medicare? ▼
Dana Day, O.D. appears in CMS Medicare data with 339 Part D claims and 106 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Dana Day, O.D.'s credentials? ▼
Dana Day, O.D.'s NPI is 1780689067 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.
- 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
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.