NPI registry status
Active
2026 NPPES data Optometrist NPI 1548266273 OD
Verify on CMS → Dirk Colby, OD
Optometrist in Golden Valley, Minnesota.
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
1K
Medicare Part D claims · 314 beneficiaries · Optometrist avg: 257
MIPS score
100/100
▲ 17 pts above national avg 83.1 · Exceptional
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Dirk Colby, OD reported a CMS MIPS final score of 100/100 - above the 83.1 national average - and filed 1,250 Medicare Part D claims in 2023.
- 100/100
- MIPS score · +17 vs avg
- 1K
- Part D claims, 2023
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.
Dirk Colby, OD's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
100 Top 7% higher than 93% of 477,587 scored providers
Each bar is a band; taller bars hold more scored 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.
Source CMS Merit-based Incentive Payment System (MIPS) · 2023
Where Dirk Colby, OD sits
This provider among optometrist peers
Across the 6,527 optometrist providers who report both Medicare Part D prescribing and a MIPS quality score, Dirk Colby, OD writes more Part D claims than 90% of them and scores higher on MIPS quality than 91% - placing this provider in the high-volume, high-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
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 Dirk Colby, OD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
What does the federal data show about Dirk Colby, OD?
High performer (top quartile)Primary specialty
Optometrist
Medicare Part D claims
1,250 386% vs specialty avg
MIPS final score
100/100 16.9 pts vs avg
Specialty distribution in Minnesota
How Optometrist compares to other specialties among Minnesota providers
Medicare quality performance, MIPS
Dirk Colby, OD's 2023 MIPS final score plotted against the Optometrist national average
- MIPS Final Score
- 100/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Optometrist) - 100/100 vs national avg 83.1
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).
Dirk Colby, OD appears in the CMS NPPES registry as an Optometrist provider holding OD credentials at 5851 DULUTH ST, Golden Valley, MN, 55422, with a listed phone of (763) 546-8422. NPI 1548266273 was issued on 06/27/2005.
Medicare Part D records for calendar year 2023 show 1,250 prescription claims written by this provider, covering 314 Medicare beneficiaries and totaling roughly $135K in drug spend. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 100/100 for the 2023 performance year (Quality 100), compared with the national average of 83.1.
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 | 1548266273 |
|---|---|
| Specialty | Optometrist |
| Credentials | OD |
| Gender | Male |
| NPI Issued | 06/27/2005 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
100
Final Score
Avg: 83.1
100
Quality
Reporting: Group practice
Hospital and facility affiliations
Facilities where Dirk Colby, 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.
West Metro Ophthalmology PA
Buffalo, MN
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
1,250
Total Claims
$135K
Total Drug Cost
314
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 2,616
- Total Day Supply
- 75,251
- Generic Drug Cost
- $36K
- Antibiotic Claims
- 16
Patient Demographics
- Average Patient Age
- 77.3 years
- Avg HCC Risk Score
- 1.16
- Gender Split
- 61% female / 39% male
- Age Distribution
- <65: 14, 65-74: 114, 75-84: 109, 85+: 77
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Dirk Colby, OD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Latanoprost
Latanoprost
526 claims
- Timolol Maleate 209
Timolol Maleate
209 claims
- Dorzolamide-Timolol 108
Dorzolamide-Timolol
108 claims
- Brimonidine Tartrate 54
Brimonidine Tartrate
54 claims
- Erythromycin 43
Erythromycin
43 claims
- Prednisolone Acetate 39
Prednisolone Acetate
39 claims
- Dorzolamide Hcl 30
Dorzolamide Hcl
30 claims
- Tobramycin-Dexamet… 30
Tobramycin-Dexamethasone
30 claims
| Drug | Claims |
|---|---|
| Latanoprost | 526 |
| Timolol Maleate | 209 |
| Dorzolamide-Timolol Dorzolamide Hcl/Timolol Maleat | 108 |
| Brimonidine Tartrate | 54 |
| Erythromycin Erythromycin Base | 43 |
| Prednisolone Acetate | 39 |
| Dorzolamide Hcl | 30 |
| Tobramycin-Dexamethasone Tobramycin/Dexamethasone | 30 |
| Restasis Cyclosporine | 21 |
| Cyclosporine | 20 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Optometrist Overview
How Dirk Colby, OD fits within the Optometrist landscape nationally.
60,484
Optometrist Providers in US
56
States with Optometrist
257
Avg Claims per Provider
Dirk Colby, OD's 1,250 claims are above the specialty average of 257.
Nearby Optometrist Providers in Minnesota
Other clinicians with the same primary specialty enrolled in Minnesota, drawn from the same CMS NPPES roster as Colby.
Dr. Michael Ackermann
OD
Lake City, MN
Dr. Bradley Adams
O.D.
Brainerd, MN
Dr. Kristin Adams
OD
Minneapolis, MN
Dr. Anna Aho
OD
Annandale, MN
Dr. Kamran Ahrar
OD
Lakeville, MN
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 Minnesota 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 Dirk Colby, OD's specialty? ▼
Dirk Colby, OD specializes in Optometrist and practices in Golden Valley, Minnesota. Credentials: OD.
How much does Dirk Colby, OD prescribe under Medicare Part D? ▼
In 2023, Dirk Colby, OD wrote 1,250 Medicare Part D claims totaling $135K in drug costs for 314 beneficiaries.
What is Dirk Colby, OD's Medicare quality score? ▼
Dirk Colby, OD has a CMS MIPS Final Score of 100/100 (Quality: 100). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Dirk Colby, OD located? ▼
Dirk Colby, OD is located at 5851 DULUTH ST, Golden Valley, MN, 55422. Phone: (763) 546-8422.
What is Dirk Colby, OD's NPI number? ▼
Dirk Colby, OD's National Provider Identifier (NPI) is 1548266273, issued on 06/27/2005.
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 Dirk Colby, OD prescribe most often? ▼
Based on 2023 Medicare Part D data, Dirk Colby, OD's most frequently prescribed drugs include Latanoprost, Timolol Maleate, Dorzolamide-Timolol. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Dirk Colby, OD accept Medicare? ▼
Dirk Colby, OD appears in CMS Medicare data with 1,250 Part D claims and 314 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Dirk Colby, OD's credentials? ▼
Dirk Colby, OD's NPI is 1548266273 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.
- 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 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.