NPI registry status
Active
2026 NPPES data Optometrist NPI 1144270091 O.D.
Verify on CMS → Alison Arrants, O.D.
Optometrist in Rock Springs, 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 60,484 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
237
Medicare Part D claims · 41 beneficiaries · Optometrist avg: 257
Generic prescribing
61%
generic claims · 39% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Alison Arrants, O.D. filed 237 Medicare Part D claims in 2023 as a Optometrist in Rock Springs, Wyoming, prescribing 61% generic.
- 237
- Part D claims, 2023
- 61%
- generic prescribing
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.
Alison Arrants, O.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
237 49th percentile higher than 49% of 1,370,886 prescribers
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.
Source CMS Medicare Part D Prescriber Public Use File · 2023
What does the federal data show about Alison Arrants, O.D.?
Quality data not reportedPrimary specialty
Optometrist
Medicare Part D claims
237 8% 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).
Alison Arrants, O.D. appears in the CMS NPPES registry as an Optometrist provider holding O.D. credentials at 2820 FOOTHILL BLVD, Rock Springs, WY, 82901, with a listed phone of (307) 382-4444. NPI 1144270091 was issued on 05/11/2006.
Medicare Part D records for calendar year 2023 show 237 prescription claims written by this provider, covering 41 Medicare beneficiaries and totaling roughly $23K in drug spend, split 39% brand-name and 61% generic by claim count.
Optometrist is a high-volume specialty nationwide, with 60,484 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
Provider Details
| NPI | 1144270091 |
|---|---|
| Specialty | Optometrist |
| Credentials | O.D. |
| Gender | Female |
| NPI Issued | 05/11/2006 |
Brand vs generic prescribing mix · Above average
Alison Arrants, O.D. - brand share 39.0%
Optometrist average
39% brand-name claims vs 61% generic, on 237 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.
237
Total Claims
$23K
Total Drug Cost
41
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 293
- Total Day Supply
- 7,809
- Brand vs Generic
- 39% brand / 61% generic
- Brand Drug Cost
- $17K
- Generic Drug Cost
- $6K
Patient Demographics
- Average Patient Age
- 72.6 years
- Avg HCC Risk Score
- 0.77
- Gender Split
- 59% female / 41% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Alison Arrants, O.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Latanoprost
Latanoprost
125 claims
- Lumigan 27
Lumigan
27 claims
- Dorzolamide-Timolol 19
Dorzolamide-Timolol
19 claims
- Brimonidine Tartrate 14
Brimonidine Tartrate
14 claims
| Drug | Claims |
|---|---|
| Latanoprost | 125 |
| Lumigan Bimatoprost | 27 |
| Dorzolamide-Timolol Dorzolamide Hcl/Timolol Maleat | 19 |
| Brimonidine Tartrate | 14 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Optometrist Overview
How Alison Arrants, O.D. fits within the Optometrist landscape nationally.
60,484
Optometrist Providers in US
56
States with Optometrist
257
Avg Claims per Provider
Alison Arrants, O.D.'s 237 claims are below the specialty average of 257.
Nearby Optometrist Providers in Wyoming
Other clinicians with the same primary specialty enrolled in Wyoming, drawn from the same CMS NPPES roster as Arrants.
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 →
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the Wyoming medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Optometrist peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
Healthcare Guides
Learn more about finding, verifying, and understanding healthcare providers.
How to Find a Doctor
Step-by-step guide to choosing a provider
Verify Credentials
Check NPI, board certification & license status
Medical Specialties Explained
Who treats what and how specialties differ
Understanding Medicare Claims Data
What prescribing data reveals about a provider
In-Network vs Out-of-Network
How insurance networks affect your costs
Telehealth Guide
Virtual care options and coverage in 2026
Explore Wyoming
Frequently Asked Questions
What is Alison Arrants, O.D.'s specialty? ▼
Alison Arrants, O.D. specializes in Optometrist and practices in Rock Springs, Wyoming. Credentials: O.D..
How much does Alison Arrants, O.D. prescribe under Medicare Part D? ▼
In 2023, Alison Arrants, O.D. wrote 237 Medicare Part D claims totaling $23K in drug costs for 41 beneficiaries.
Where is Alison Arrants, O.D. located? ▼
Alison Arrants, O.D. is located at 2820 FOOTHILL BLVD, Rock Springs, WY, 82901. Phone: (307) 382-4444.
What is Alison Arrants, O.D.'s NPI number? ▼
Alison Arrants, O.D.'s National Provider Identifier (NPI) is 1144270091, issued on 05/11/2006.
Does Alison Arrants, O.D. prescribe more brand-name or generic drugs? ▼
Alison Arrants, O.D.'s prescribing is 39% brand-name and 61% generic drugs by claim count, with $17K in brand drug costs.
How many Optometrist providers are there in the US? ▼
There are 60,484 Optometrist providers across 56 states in the US. The average Optometrist provider writes 257 Medicare Part D claims per year.
What drugs does Alison Arrants, O.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Alison Arrants, O.D.'s most frequently prescribed drugs include Latanoprost, Lumigan, Dorzolamide-Timolol. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Alison Arrants, O.D. accept Medicare? ▼
Alison Arrants, O.D. appears in CMS Medicare data with 237 Part D claims and 41 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Alison Arrants, O.D.'s credentials? ▼
Alison Arrants, O.D.'s NPI is 1144270091 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 (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
Compiled from official public sources by the PlainDoctor editorial team.
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 May 2026.