2026 NPPES data Ophthalmology Physician NPI 1306341979
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COLE ROJAS

Ophthalmology Physician in GREENFIELD, Wisconsin. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
962
Medicare Part D claims · 348 beneficiaries · Ophthalmology Physician avg: 1K
Generic prescribing
53%
generic claims · 47% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$521.88
25 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

COLE ROJAS filed 962 Medicare Part D claims in 2023 as a Ophthalmology Physician in GREENFIELD, Wisconsin, prescribing 53% generic.

962
Part D claims, 2023
53%
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.

COLE ROJAS's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

962 Top 25% higher than 75% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). Below this entry. 600–800: 56,224 prescribers (4%). Below this entry. 800–1,000: 40,919 prescribers (3%). This entry sits in this band. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

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

Board certification likely (heuristic — not verified)

COLE ROJAS practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 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 COLE ROJAS?

Quality data not reported

NPI registry status

Active

Issued 03/27/2018

NPI 1306341979

Primary specialty

Ophthalmology Physician

Mid-sized

22,090 US NPIs in this specialty

Medicare Part D claims

962 32% vs specialty avg

2023 prescription claims

Specialty avg: 1,420

Specialty distribution in Wisconsin

How Ophthalmology Physician compares to other specialties among Wisconsin providers

Wisconsin providers

Ophthalmology Physician share within Wisconsin

1. Ophthalmology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Ophthalmology Physician share within Wisconsin

Specialty board-certification context

Estimated specialty board-certified rate — Ophthalmology Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Ophthalmology Physician ABMS/AOA estimate

Est. board-certified rate (Ophthalmology Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Ophthalmology Physician) — ABMS / AOA estimate

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).

COLE ROJAS appears in the CMS NPPES registry as a Ophthalmology Physician provider at 4600 W LOOMIS RD STE 310, GREENFIELD, WI, 53220, with a listed phone of (414) 588-3526. NPI 1306341979 was issued on 03/27/2018. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what ROJAS most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 962 prescription claims written by this provider, covering 348 Medicare beneficiaries and totaling roughly $109K in drug spend, split 47% brand-name and 53% generic by claim count. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Ophthalmology Physician is a mid-sized specialty nationwide, with 22,090 enrolled providers across 56 states and an average of 1,420 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

4600 W LOOMIS RD STE 310
GREENFIELD, WI 53220

Provider Details

NPI 1306341979
Specialty Ophthalmology Physician
Gender Male
NPI Issued 03/27/2018

Hospital and facility affiliations

Facilities where COLE ROJAS 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.

OPHTHALMOLOGY ASSOCIATES S C
CUDAHY, WI

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 COLE ROJAS. Source: openpaymentsdata.cms.gov.

Total received

$522

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 · Above average

COLE ROJAS — brand share 47.0%
Specialty average (est.)

47% brand-name claims vs 53% generic, on 962 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.

962
Total Claims
$109K
Total Drug Cost
348
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,379
Total Day Supply
36,244
Brand vs Generic
47% brand / 53% generic
Brand Drug Cost
$94K
Generic Drug Cost
$15K
Antibiotic Claims
43

Patient Demographics

Average Patient Age
75.0 years
Avg HCC Risk Score
1.69
Gender Split
61% female / 39% male
Age Distribution
<65: 19, 65-74: 163, 75-84: 113, 85+: 53

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

What COLE ROJAS prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Latanoprost
216
Prednisolone Acetate
136
Ketorolac Tromethamine
95
Fluorometholone
84
Moxifloxacin
Moxifloxacin Hcl
54
Timolol Maleate
49
Brimonidine Tartrate
47
Restasis
Cyclosporine
45
Erythromycin
Erythromycin Base
40
Azithromycin
35

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

Ophthalmology Physician Overview

How COLE ROJAS fits within the Ophthalmology Physician landscape nationally.

22,090
Ophthalmology Physician Providers in US
56
States with Ophthalmology Physician
1,420
Avg Claims per Provider

COLE ROJAS's 962 claims are below the specialty average of 1,420.

Nearby Ophthalmology Physician Providers in Wisconsin

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

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

Frequently Asked Questions

What is COLE ROJAS's specialty?
COLE ROJAS specializes in Ophthalmology Physician and practices in GREENFIELD, Wisconsin.
How much does COLE ROJAS prescribe under Medicare Part D?
In 2023, COLE ROJAS wrote 962 Medicare Part D claims totaling $109K in drug costs for 348 beneficiaries.
Where is COLE ROJAS located?
COLE ROJAS is located at 4600 W LOOMIS RD STE 310, GREENFIELD, WI, 53220. Phone: (414) 588-3526.
What is COLE ROJAS's NPI number?
COLE ROJAS's National Provider Identifier (NPI) is 1306341979, issued on 03/27/2018.
Does COLE ROJAS prescribe more brand-name or generic drugs?
COLE ROJAS's prescribing is 47% brand-name and 53% generic drugs by claim count, with $94K in brand drug costs.
How many Ophthalmology Physician providers are there in the US?
There are 22,090 Ophthalmology Physician providers across 56 states in the US. The average Ophthalmology Physician provider writes 1,420 Medicare Part D claims per year.
What drugs does COLE ROJAS prescribe most often?
Based on 2023 Medicare Part D data, COLE ROJAS's most frequently prescribed drugs include Latanoprost, Prednisolone Acetate, Ketorolac Tromethamine. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does COLE ROJAS accept Medicare?
COLE ROJAS appears in CMS Medicare data with 962 Part D claims and 348 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify COLE ROJAS's credentials?
COLE ROJAS's NPI is 1306341979. 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

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