2026 NPPES data Ophthalmology Physician NPI 1457328528 M.D.
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LOU KIESSLING, M.D.

Ophthalmology Physician in CARROLL, Iowa. 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
994
Medicare Part D claims · 236 beneficiaries · Ophthalmology Physician avg: 1K
Generic prescribing
61%
generic claims · 39% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

LOU KIESSLING, M.D. filed 994 Medicare Part D claims in 2023 as a Ophthalmology Physician in CARROLL, Iowa, prescribing 61% generic.

994
Part D claims, 2023
61%
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.

LOU KIESSLING, M.D.'s Medicare Part D volume vs every U.S. prescriber

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

994 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-eligible specialty (heuristic — not verified)

LOU KIESSLING, M.D. practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about LOU KIESSLING, M.D.?

Quality data not reported

NPI registry status

Active

Issued 03/07/2006

NPI 1457328528

Primary specialty

Ophthalmology Physician

Mid-sized

22,090 US NPIs in this specialty

Medicare Part D claims

994 30% vs specialty avg

2023 prescription claims

Specialty avg: 1,420

Specialty distribution in Iowa

How Ophthalmology Physician compares to other specialties among Iowa providers

Iowa providers

Ophthalmology Physician share within Iowa

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

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).

LOU KIESSLING, M.D. appears in the CMS NPPES registry as a Ophthalmology Physician provider holding M.D. credentials at 405 S CLARK ST, CARROLL, IA, 51401, with a listed phone of (712) 792-8255. NPI 1457328528 was issued on 03/07/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what KIESSLING 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 994 prescription claims written by this provider, covering 236 Medicare beneficiaries and totaling roughly $74K in drug spend, split 39% brand-name and 61% 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

405 S CLARK ST
CARROLL, IA 51401

Provider Details

NPI 1457328528
Specialty Ophthalmology Physician
Credentials M.D.
Gender Female
NPI Issued 03/07/2006

Brand vs generic prescribing mix · Above average

LOU KIESSLING, M.D. — brand share 39.0%
Specialty average (est.)

39% brand-name claims vs 61% generic, on 994 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.

994
Total Claims
$74K
Total Drug Cost
236
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,343
Total Day Supply
34,454
Brand vs Generic
39% brand / 61% generic
Brand Drug Cost
$61K
Generic Drug Cost
$13K

Patient Demographics

Average Patient Age
77.4 years
Avg HCC Risk Score
1.28
Gender Split
63% female / 37% male
Age Distribution
<65: 11, 65-74: 82, 75-84: 92, 85+: 51

Top Prescribed Drugs (Medicare Part D)

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

What LOU KIESSLING, M.D. 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
256
Prednisolone Acetate
223
Moxifloxacin
Moxifloxacin Hcl
172
Timolol Maleate
113
Erythromycin
Erythromycin Base
38
Restasis
Cyclosporine
37
Dorzolamide-Timolol
Dorzolamide Hcl/Timolol Maleat
28
Valacyclovir
Valacyclovir Hcl
20
Brimonidine Tartrate
19
Dorzolamide Hcl
11

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

Ophthalmology Physician Overview

How LOU KIESSLING, M.D. 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

LOU KIESSLING, M.D.'s 994 claims are below the specialty average of 1,420.

Nearby Ophthalmology Physician Providers in Iowa

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

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

Frequently Asked Questions

What is LOU KIESSLING, M.D.'s specialty?
LOU KIESSLING, M.D. specializes in Ophthalmology Physician and practices in CARROLL, Iowa. Credentials: M.D..
How much does LOU KIESSLING, M.D. prescribe under Medicare Part D?
In 2023, LOU KIESSLING, M.D. wrote 994 Medicare Part D claims totaling $74K in drug costs for 236 beneficiaries.
Where is LOU KIESSLING, M.D. located?
LOU KIESSLING, M.D. is located at 405 S CLARK ST, CARROLL, IA, 51401. Phone: (712) 792-8255.
What is LOU KIESSLING, M.D.'s NPI number?
LOU KIESSLING, M.D.'s National Provider Identifier (NPI) is 1457328528, issued on 03/07/2006.
Does LOU KIESSLING, M.D. prescribe more brand-name or generic drugs?
LOU KIESSLING, M.D.'s prescribing is 39% brand-name and 61% generic drugs by claim count, with $61K 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 LOU KIESSLING, M.D. prescribe most often?
Based on 2023 Medicare Part D data, LOU KIESSLING, M.D.'s most frequently prescribed drugs include Latanoprost, Prednisolone Acetate, Moxifloxacin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does LOU KIESSLING, M.D. accept Medicare?
LOU KIESSLING, M.D. appears in CMS Medicare data with 994 Part D claims and 236 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify LOU KIESSLING, M.D.'s credentials?
LOU KIESSLING, M.D.'s NPI is 1457328528 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

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