2026 NPPES data Optometrist NPI 1427579218 OD
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CAROLYN KOLB, OD

Optometrist in CHIPPEWA FALLS, 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
150
Medicare Part D claims · 53 beneficiaries · Optometrist avg: 257
Generic prescribing
76%
generic claims · 24% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

CAROLYN KOLB, OD filed 150 Medicare Part D claims in 2023 as a Optometrist in CHIPPEWA FALLS, Wisconsin, prescribing 76% generic.

150
Part D claims, 2023
76%
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.

CAROLYN KOLB, OD's Medicare Part D volume vs every U.S. prescriber

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

150 35th percentile higher than 35% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). This entry sits in this band. 200–400: 182,923 prescribers (13%). Above this entry. 400–600: 90,619 prescribers (7%). Above this entry. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 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

What does the federal data show about CAROLYN KOLB, OD?

Quality data not reported

NPI registry status

Active

Issued 06/30/2017

NPI 1427579218

Primary specialty

Optometrist

High-volume

60,463 US NPIs in this specialty

Medicare Part D claims

150 42% vs specialty avg

2023 prescription claims

Specialty avg: 257

Specialty distribution in Wisconsin

How Optometrist compares to other specialties among Wisconsin providers

Wisconsin providers

Optometrist share within Wisconsin

1. Optometrist42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Optometrist share within Wisconsin

Specialty board-certification context

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

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

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

0%100%78%
Est. board-certified rate (Optometrist) — 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).

CAROLYN KOLB, OD appears in the CMS NPPES registry as a Optometrist provider holding OD credentials at 113 N BRIDGE ST, CHIPPEWA FALLS, WI, 54729, with a listed phone of (715) 723-9187. NPI 1427579218 was issued on 06/30/2017. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what KOLB 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 150 prescription claims written by this provider, covering 53 Medicare beneficiaries and totaling roughly $15K in drug spend, split 24% brand-name and 76% 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.

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

113 N BRIDGE ST
CHIPPEWA FALLS, WI 54729

Provider Details

NPI 1427579218
Specialty Optometrist
Credentials OD
Gender Female
NPI Issued 06/30/2017

Brand vs generic prescribing mix · Typical

CAROLYN KOLB, OD — brand share 24.0%
Specialty average (est.)

24% brand-name claims vs 76% generic, on 150 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.

150
Total Claims
$15K
Total Drug Cost
53
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
264
Total Day Supply
7,214
Brand vs Generic
24% brand / 76% generic
Brand Drug Cost
$13K
Generic Drug Cost
$3K

Patient Demographics

Average Patient Age
71.6 years
Avg HCC Risk Score
1.07
Gender Split
49% female / 51% male

Top Prescribed Drugs (Medicare Part D)

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

What CAROLYN KOLB, OD 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
47
Erythromycin
Erythromycin Base
35
Timolol Maleate
15
Dorzolamide-Timolol
Dorzolamide Hcl/Timolol Maleat
14
Restasis
Cyclosporine
12

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

Optometrist Overview

How CAROLYN KOLB, OD fits within the Optometrist landscape nationally.

60,463
Optometrist Providers in US
56
States with Optometrist
257
Avg Claims per Provider

CAROLYN KOLB, OD's 150 claims are below the specialty average of 257.

Nearby Optometrist Providers in Wisconsin

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

Compare Optometrist nationally: see state-by-state distribution →

Frequently Asked Questions

What is CAROLYN KOLB, OD's specialty?
CAROLYN KOLB, OD specializes in Optometrist and practices in CHIPPEWA FALLS, Wisconsin. Credentials: OD.
How much does CAROLYN KOLB, OD prescribe under Medicare Part D?
In 2023, CAROLYN KOLB, OD wrote 150 Medicare Part D claims totaling $15K in drug costs for 53 beneficiaries.
Where is CAROLYN KOLB, OD located?
CAROLYN KOLB, OD is located at 113 N BRIDGE ST, CHIPPEWA FALLS, WI, 54729. Phone: (715) 723-9187.
What is CAROLYN KOLB, OD's NPI number?
CAROLYN KOLB, OD's National Provider Identifier (NPI) is 1427579218, issued on 06/30/2017.
Does CAROLYN KOLB, OD prescribe more brand-name or generic drugs?
CAROLYN KOLB, OD's prescribing is 24% brand-name and 76% generic drugs by claim count, with $13K 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 CAROLYN KOLB, OD prescribe most often?
Based on 2023 Medicare Part D data, CAROLYN KOLB, OD's most frequently prescribed drugs include Latanoprost, Erythromycin, Timolol Maleate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does CAROLYN KOLB, OD accept Medicare?
CAROLYN KOLB, OD appears in CMS Medicare data with 150 Part D claims and 53 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify CAROLYN KOLB, OD's credentials?
CAROLYN KOLB, OD's NPI is 1427579218 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

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