NPI registry status
Active
2026 NPPES data Optometrist NPI 1700048329 OD
Verify on CMS → Derek Ashby, OD
Optometrist in Canon City, Colorado.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 60,463 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
183
Medicare Part D claims · 62 beneficiaries · Optometrist avg: 257
Generic prescribing
51%
generic claims · 49% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$77.23
4 payments · CMS Open Payments (Sunshine Act)
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
Derek Ashby, OD filed 183 Medicare Part D claims in 2023 as a Optometrist in Canon City, Colorado, prescribing 51% generic.
- 183
- Part D claims, 2023
- 51%
- generic prescribing
- $77.23
- 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.
Derek Ashby, OD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
183 35th percentile higher than 35% 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 Derek Ashby, OD?
Quality data not reportedPrimary specialty
Optometrist
Medicare Part D claims
183 29% vs specialty avg
Specialty distribution in Colorado
How Optometrist compares to other specialties among Colorado 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).
Derek Ashby, OD appears in the CMS NPPES registry as a Optometrist provider holding OD credentials at 326 DOZIER AVE, Canon City, CO, 81212, with a listed phone of (719) 276-0344. NPI 1700048329 was issued on 06/25/2008.
Medicare Part D records for calendar year 2023 show 183 prescription claims written by this provider, covering 62 Medicare beneficiaries and totaling roughly $46K in drug spend, split 49% brand-name and 51% generic by claim count.
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
Provider Details
| NPI | 1700048329 |
|---|---|
| Specialty | Optometrist |
| Credentials | OD |
| Gender | Male |
| NPI Issued | 06/25/2008 |
Hospital and facility affiliations
Facilities where Derek Ashby, OD 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.
According to CMS billing records, Derek Ashby, OD is affiliated with 3 Medicare-billing facilities.
Bright Eyes Vision Clinic PC A Colorado Professional Corporation
Canon City, CO
Southern Colorado Eye Care
Pueblo West, CO
Southern Colorado Eye Care Associates PC
Pueblo, CO
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
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 Derek Ashby, OD. Source: openpaymentsdata.cms.gov.
Total received
$77
Largest payer
Astellas Pharma US 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
Derek Ashby, OD - brand share 49.0%
Optometrist average
49% brand-name claims vs 51% generic, on 183 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.
183
Total Claims
$46K
Total Drug Cost
62
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 286
- Total Day Supply
- 7,493
- Brand vs Generic
- 49% brand / 51% generic
- Brand Drug Cost
- $41K
- Generic Drug Cost
- $5K
Patient Demographics
- Average Patient Age
- 74.9 years
- Avg HCC Risk Score
- 1.14
- Gender Split
- 50% female / 50% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Derek Ashby, OD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Latanoprost
Latanoprost
64 claims
- Tobramycin-Dexamet… 18
Tobramycin-Dexamethasone
18 claims
- Dorzolamide-Timolol 15
Dorzolamide-Timolol
15 claims
- Restasis 14
Restasis
14 claims
| Drug | Claims |
|---|---|
| Latanoprost | 64 |
| Tobramycin-Dexamethasone Tobramycin/Dexamethasone | 18 |
| Dorzolamide-Timolol Dorzolamide Hcl/Timolol Maleat | 15 |
| Restasis Cyclosporine | 14 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Optometrist Overview
How Derek Ashby, OD fits within the Optometrist landscape nationally.
60,463
Optometrist Providers in US
56
States with Optometrist
257
Avg Claims per Provider
Derek Ashby, OD's 183 claims are below the specialty average of 257.
Nearby Optometrist Providers in Colorado
Other clinicians with the same primary specialty enrolled in Colorado, drawn from the same CMS NPPES roster as Ashby.
Dr. Kaleb Abbott
OD
Aurora, CO
Dr. Amy Abel
O.D.
Fort Collins, CO
Dr. Gregory Abel
O.D.
Ft Collins, CO
Dr. Brian Abert
O.D.
Arvada, CO
Dr. Ritu Abraham
OD
Aurora, CO
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 Colorado 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.
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Frequently Asked Questions
What is Derek Ashby, OD's specialty? ▼
Derek Ashby, OD specializes in Optometrist and practices in Canon City, Colorado. Credentials: OD.
How much does Derek Ashby, OD prescribe under Medicare Part D? ▼
In 2023, Derek Ashby, OD wrote 183 Medicare Part D claims totaling $46K in drug costs for 62 beneficiaries.
Where is Derek Ashby, OD located? ▼
Derek Ashby, OD is located at 326 DOZIER AVE, Canon City, CO, 81212. Phone: (719) 276-0344.
What is Derek Ashby, OD's NPI number? ▼
Derek Ashby, OD's National Provider Identifier (NPI) is 1700048329, issued on 06/25/2008.
Does Derek Ashby, OD prescribe more brand-name or generic drugs? ▼
Derek Ashby, OD's prescribing is 49% brand-name and 51% generic drugs by claim count, with $41K 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 Derek Ashby, OD prescribe most often? ▼
Based on 2023 Medicare Part D data, Derek Ashby, OD's most frequently prescribed drugs include Latanoprost, Tobramycin-Dexamethasone, Dorzolamide-Timolol. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Derek Ashby, OD accept Medicare? ▼
Derek Ashby, OD appears in CMS Medicare data with 183 Part D claims and 62 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Derek Ashby, OD's credentials? ▼
Derek Ashby, OD's NPI is 1700048329 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
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.