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2026 NPPES data Ophthalmology Physician NPI 1679950976 M.D.
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Cullen Ryburn, M.D.

Ophthalmology Physician in Loveland, 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 22,388 in Ophthalmology Physician, 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
778
Medicare Part D claims · 183 beneficiaries · Ophthalmology Physician avg: 1K
Generic prescribing
47%
generic claims · 53% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
85.8/100
▲ 2 pts above national avg 83.5 · Above neutral
Industry payments
$463.99
6 payments · CMS Open Payments (Sunshine Act)
Verify NPI on CMS Methodology
Compiled from official public sources by the editorial process.

What the federal data shows

Cullen Ryburn, M.D. reported a CMS MIPS final score of 85.8/100 - above the 83.5 national average - and filed 778 Medicare Part D claims in 2024.

85.8/100
MIPS score · +2 vs avg
778
Part D claims, 2024
47%
generic prescribing
Likely
board-certified (heuristic)

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 Cullen Ryburn, M.D.

Federal records show an active NPI with both Medicare prescribing volume and a measured CMS quality score — objective registry data, not patient reviews.

  • Verified

    NPI registry status

    Active listing in the CMS National Provider Identifier Registry (NPI 1679950976), first enumerated 05/06/2015.

    Source: CMS NPPES

  • Reported

    Medicare Part D participation

    Filed 778 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.

    Source: CMS Part D Prescriber PUF

  • Reported

    CMS quality reporting (MIPS)

    Reported a CMS MIPS final score of 85.8/100 in the Quality Payment Program — a federal quality measure, not a patient review.

    Source: CMS Quality Payment Program

  • Reported

    Board certification signal

    Heuristic suggests board-certified status based on ABMS-eligible specialty taxonomy plus active CMS participation signals — not a direct ABMS verification.

    Source: NUCC taxonomy + CMS participation heuristic

  • Reported

    Hospital affiliations

    1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.

    Source: CMS Care Compare

  • Reported

    Industry payment transparency

    $463.99 in reported industry payments (6 transfers) in 2024 under the federal Sunshine Act — disclosed transfers of value, not a quality rating.

    Source: CMS Open Payments

  • 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 1679950976 · Ophthalmology Physician

NPI-10 · ENUM-MID · TAX-MID · MIPS-INLINE · RX-LIGHT · BOOK-THIN · PHOTO-FINISH

  • NPI-10 1679950976
  • ENUM-MID 2015
  • TAX-MID 22K Ophthalmology Physician
  • MIPS-INLINE 85.8/100
  • RX-LIGHT 778
  • BOOK-THIN 407 in Colorado
  • PHOTO-FINISH Sandra Everett, M.D. · ±0.0

MIPS final-score neighbourhood

Same-specialty nationwide peers by CMS final score, not geographic proximity

MIPS pts

What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).

Source CMS Quality Payment Program (MIPS) As of 2023

Cullen Ryburn, M.D.'s MIPS score vs every measured U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure. Clinicians whose score CMS assigned without scoring any category are excluded.

86 ≥ 46th percentile 46% of 454,083 measured providers are in lower value bands

0–10: 8,684 measured providers (2%). Below this entry. 10–20: 3,008 measured providers (1%). Below this entry. 20–30: 3,069 measured providers (1%). Below this entry. 30–40: 2,746 measured providers (1%). Below this entry. 40–50: 2,928 measured providers (1%). Below this entry. 50–60: 5,882 measured providers (1%). Below this entry. 60–70: 13,906 measured providers (3%). Below this entry. 70–80: 94,570 measured providers (21%). Below this entry. 80–90: 129,887 measured providers (29%). This entry sits in this band. 90+: 189,403 measured providers (42%). Above this entry. This provider 0 100 every measured MIPS clinician, bucketed by value

Each bar is a band; taller bars hold more measured 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.

The percentile is a conservative whole-score-point band: it counts only measured clinicians in lower score bands. A CMS MIPS metric is not a recommendation or a clinical-quality rating by PlainDoctor. See methodology § corpus placement.

Source CMS Merit-based Incentive Payment System (MIPS) · 2023

Where Cullen Ryburn, M.D. sits

This provider among ophthalmology physician peers

Across the 8,767 ophthalmology physician providers who report both Medicare Part D prescribing and a MIPS quality score, Cullen Ryburn, M.D. writes more Part D claims than 38% of them and scores higher on MIPS quality than 40% - placing this provider in the lower-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.

Lower volume · High qualityHigh volume · High qualityLower volume · Lower qualityHigh volume · Lower quality0255075100024.448.873.297.7Part D claim volume, percentile in specialtyMIPS quality, percentilePoint, Part D claim volume, percentile in specialty: 33 · MIPS quality, percentile: 53Point, Part D claim volume, percentile in specialty: 75 · MIPS quality, percentile: 87Point, Part D claim volume, percentile in specialty: 32 · MIPS quality, percentile: 93Point, Part D claim volume, percentile in specialty: 78 · MIPS quality, percentile: 13Point, Part D claim volume, percentile in specialty: 95 · MIPS quality, percentile: 80Point, Part D claim volume, percentile in specialty: 98 · MIPS quality, percentile: 65Point, Part D claim volume, percentile in specialty: 0 · MIPS quality, percentile: 18Point, Part D claim volume, percentile in specialty: 77 · MIPS quality, percentile: 93Point, Part D claim volume, percentile in specialty: 18 · MIPS quality, percentile: 93Point, Part D claim volume, percentile in specialty: 72 · MIPS quality, percentile: 60Point, Part D claim volume, percentile in specialty: 43 · MIPS quality, percentile: 47Point, Part D claim volume, percentile in specialty: 92 · MIPS quality, percentile: 93Point, Part D claim volume, percentile in specialty: 97 · MIPS quality, percentile: 67Point, Part D claim volume, percentile in specialty: 47 · MIPS quality, percentile: 75Point, Part D claim volume, percentile in specialty: 38 · MIPS quality, percentile: 50Point, Part D claim volume, percentile in specialty: 68 · MIPS quality, percentile: 15Point, Part D claim volume, percentile in specialty: 100 · MIPS quality, percentile: 37Point, Part D claim volume, percentile in specialty: 40 · MIPS quality, percentile: 78Point, Part D claim volume, percentile in specialty: 13 · MIPS quality, percentile: 52Point, Part D claim volume, percentile in specialty: 23 · MIPS quality, percentile: 77Point, Part D claim volume, percentile in specialty: 58 · MIPS quality, percentile: 83Point, Part D claim volume, percentile in specialty: 30 · MIPS quality, percentile: 62Point, Part D claim volume, percentile in specialty: 50 · MIPS quality, percentile: 68Point, Part D claim volume, percentile in specialty: 45 · MIPS quality, percentile: 20Point, Part D claim volume, percentile in specialty: 2 · MIPS quality, percentile: 72Point, Part D claim volume, percentile in specialty: 35 · MIPS quality, percentile: 10Point, Part D claim volume, percentile in specialty: 52 · MIPS quality, percentile: 58Point, Part D claim volume, percentile in specialty: 12 · MIPS quality, percentile: 55Point, Part D claim volume, percentile in specialty: 5 · MIPS quality, percentile: 90Point, Part D claim volume, percentile in specialty: 10 · MIPS quality, percentile: 45Point, Part D claim volume, percentile in specialty: 22 · MIPS quality, percentile: 32Point, Part D claim volume, percentile in specialty: 73 · MIPS quality, percentile: 22Point, Part D claim volume, percentile in specialty: 28 · MIPS quality, percentile: 28Point, Part D claim volume, percentile in specialty: 57 · MIPS quality, percentile: 85Point, Part D claim volume, percentile in specialty: 63 · MIPS quality, percentile: 92Point, Part D claim volume, percentile in specialty: 42 · MIPS quality, percentile: 93Point, Part D claim volume, percentile in specialty: 83 · MIPS quality, percentile: 7Point, Part D claim volume, percentile in specialty: 67 · MIPS quality, percentile: 30Point, Part D claim volume, percentile in specialty: 65 · MIPS quality, percentile: 35Point, Part D claim volume, percentile in specialty: 88 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 90 · MIPS quality, percentile: 70Point, Part D claim volume, percentile in specialty: 80 · MIPS quality, percentile: 3Point, Part D claim volume, percentile in specialty: 17 · MIPS quality, percentile: 5Point, Part D claim volume, percentile in specialty: 70 · MIPS quality, percentile: 88Point, Part D claim volume, percentile in specialty: 85 · MIPS quality, percentile: 25Point, Part D claim volume, percentile in specialty: 82 · MIPS quality, percentile: 12Point, Part D claim volume, percentile in specialty: 87 · MIPS quality, percentile: 42Point, Part D claim volume, percentile in specialty: 60 · MIPS quality, percentile: 8Point, Part D claim volume, percentile in specialty: 15 · MIPS quality, percentile: 38Point, Part D claim volume, percentile in specialty: 93 · MIPS quality, percentile: 40Point, Part D claim volume, percentile in specialty: 25 · MIPS quality, percentile: 17Point, Part D claim volume, percentile in specialty: 7 · MIPS quality, percentile: 27Point, Part D claim volume, percentile in specialty: 55 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 3 · MIPS quality, percentile: 82Point, Part D claim volume, percentile in specialty: 48 · MIPS quality, percentile: 23Point, Part D claim volume, percentile in specialty: 8 · MIPS quality, percentile: 32Point, Part D claim volume, percentile in specialty: 62 · MIPS quality, percentile: 63Point, Part D claim volume, percentile in specialty: 18 · MIPS quality, percentile: 48Point, Part D claim volume, percentile in specialty: 27 · MIPS quality, percentile: 73Point, Part D claim volume, percentile in specialty: 53 · MIPS quality, percentile: 42Cullen Ryburn, M.D., Part D claim volume, percentile in specialty: 38 · MIPS quality, percentile: 40
Part D claim volume vs MIPS quality, by specialty percentile

Each dot is one ophthalmology physician peer from a representative sample of 60; the gold marker is Cullen Ryburn, M.D.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.

✓
Board certification likely (heuristic, not verified)

Cullen Ryburn, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 1 hospital affiliation - signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about Cullen Ryburn, M.D.?

High performer (top quartile)

NPI registry status

Active

Issued 05/06/2015

NPI 1679950976

Primary specialty

Ophthalmology Physician

Mid-sized

22,388 US NPIs in this specialty

Medicare Part D claims

778 48% vs specialty avg

2024 prescription claims

Specialty avg: 1,490

MIPS final score

85.8/100 2.3 pts vs avg

Above neutral band

vs 83.5 national avg

Specialty distribution in Colorado

How Ophthalmology Physician compares to other specialties among Colorado providers

Colorado providers
Behavior Technician8.2%Mental Health Counselor6.1%Clinical Social Worker4.3%Physical Therapist4.2%Professional Counselor3.7%Registered Nurse3.6%Ophthalmology Physician0.3%
Largest specialties in Colorado (% of in-state providers)

Medicare quality performance, MIPS

Cullen Ryburn, M.D.'s 2023 MIPS final score plotted against the Ophthalmology Physician national average

High performer (top quartile)
MIPS Final Score
85.8/100
vs 83.5 national avg · 2023 performance year
0%100%National avg84%85.8%
MIPS final score (Ophthalmology Physician) - 85.8/100 vs national avg 83.5
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

2975 GINNALA DR STE 120
Loveland, CO 80538
(970) 775-5453

Provider Details

NPI 1679950976
Specialty Ophthalmology Physician
Credentials M.D.
Gender Male
NPI Issued 05/06/2015

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

85.7704
Final Score
Measured-score avg: 83.5
77.8605
Quality
74.7074
Cost
100
Promoting Interoperability

Reporting: Individual

Hospital and facility affiliations

Facilities where Cullen Ryburn, M.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.

Vance Thompson Vision Clinic Prof LLC
Billings, MT

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 Cullen Ryburn, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$464

Largest payer

RxSight 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 · Brand-heavy

Cullen Ryburn, M.D. - brand share 53.0%
Ophthalmology Physician average

53% brand-name claims vs 47% generic, on 778 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.

778
Total Claims
$515K
Total Drug Cost
183
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,047.667
Total Day Supply
25,609
Brand vs Generic
53% brand / 47% generic
Brand Drug Cost
$507K
Generic Drug Cost
$8K
Opioid Claims
15 (1.9% rate)

Patient Demographics

Average Patient Age
74.4 years
Avg HCC Risk Score
1.10
Gender Split
59% female / 41% male

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.

What Cullen Ryburn, M.D. prescribes most

Top Medicare Part D drugs by claim count, 2024

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2024
Drug Claims
Prednisolone Acetate
 284
Moxifloxacin
Moxifloxacin Hcl
174
Fluorometholone
 65
Valacyclovir
Valacyclovir Hcl
44
Brimonidine Tartrate
 28
Erythromycin
Erythromycin Base
23
Ilevro
Nepafenac
18
Ketorolac Tromethamine
 17
Acetaminophen-Codeine
Acetaminophen With Codeine
15
Oxervate
Cenegermin-Bkbj
13

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

More Ophthalmology Physician in CO → All providers in Colorado → Compare specialties →

Ophthalmology Physician Overview

How Cullen Ryburn, M.D. fits within the Ophthalmology Physician landscape nationally.

22,388
Ophthalmology Physician Providers in US
56
States with Ophthalmology Physician
1,490
Avg Claims per Provider

Cullen Ryburn, M.D.'s 778 claims are below the specialty average of 1,490.

Nationwide Ophthalmology Physician peers with similar MIPS or enrollment year

Two federal-record peer sets for Ryburn, both outside Colorado so the neighborhoods are not geographic containment.

Similar MIPS final score

Nearest same-specialty clinicians by CMS MIPS final score (85.8 here).

Kevin Hulseberg 85.8 MA Adam Fedyk 85.8 MO Sandra Everett 85.8 NY John Lillvis 85.8 NY

Same NPPES enumeration year (2015)

Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.

Palak Majmudar Clifton, NJ Mariaha Cobb Fargo, ND Scott Brun North Chicago, IL Aditya Mehta Shelton, WA

Nearby Ophthalmology Physician Providers in Colorado

Other clinicians with the same primary specialty enrolled in Colorado, drawn from the same CMS NPPES roster as Ryburn.

One of 407 Ophthalmology Physician providers enrolled in Colorado, 5 are shown here.

Dr. Murtaza Adam
MD
Parker, CO
Dr. John Adams
M.D.
Greeley, CO
Dr. Mariam Ahmad
M.D.
Denver, CO
Dr. Antoni Allen
M.D.
Wheat Ridge, CO
Dr. Christopher Allen
M.D.
Colorado Springs, CO

Compare Ophthalmology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is Cullen Ryburn, M.D.'s specialty? ▼
Cullen Ryburn, M.D. specializes in Ophthalmology Physician and practices in Loveland, Colorado. Credentials: M.D..
How much does Cullen Ryburn, M.D. prescribe under Medicare Part D? ▼
In 2024, Cullen Ryburn, M.D. wrote 778 Medicare Part D claims totaling $515K in drug costs for 183 beneficiaries.
What is Cullen Ryburn, M.D.'s Medicare quality score? ▼
Cullen Ryburn, M.D. has a CMS MIPS Final Score of 85.8/100 (Quality: 77.9, Cost: 74.7). The average MIPS Final Score across the 454,083 clinicians with at least one published category score is 83.5; clinicians whose score CMS assigned without scoring any category are excluded from that average. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Cullen Ryburn, M.D. located? ▼
Cullen Ryburn, M.D. is located at 2975 GINNALA DR STE 120, Loveland, CO, 80538. Phone: (970) 775-5453.
What is Cullen Ryburn, M.D.'s NPI number? ▼
Cullen Ryburn, M.D.'s National Provider Identifier (NPI) is 1679950976, issued on 05/06/2015.
Does Cullen Ryburn, M.D. prescribe more brand-name or generic drugs? ▼
Cullen Ryburn, M.D.'s prescribing is 53% brand-name and 47% generic drugs by claim count, with $507K in brand drug costs.
Does Cullen Ryburn, M.D. prescribe opioids? ▼
Yes, Cullen Ryburn, M.D. had 15 opioid claims in 2024 with an opioid prescribing rate of 1.9%.
How many Ophthalmology Physician providers are there in the US? ▼
There are 22,388 Ophthalmology Physician providers across 56 states in the US. The average Ophthalmology Physician provider writes 1,490 Medicare Part D claims per year.
What drugs does Cullen Ryburn, M.D. prescribe most often? ▼
Based on 2024 Medicare Part D data, Cullen Ryburn, M.D.'s most frequently prescribed drugs include Prednisolone Acetate, Moxifloxacin, Fluorometholone. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Cullen Ryburn, M.D. accept Medicare? ▼
Cullen Ryburn, M.D. appears in CMS Medicare data with 778 Part D claims and 183 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Cullen Ryburn, M.D.'s credentials? ▼
Cullen Ryburn, M.D.'s NPI is 1679950976 with credentials M.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.
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 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

Compiled from official public sources by the editorial process.

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.