2026 NPPES data Optometrist NPI 1669434130 O.D.
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KATHY BIDDINGER, O.D.

Optometrist in ATHENS, Ohio. 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
365
Medicare Part D claims · 100 beneficiaries · Optometrist avg: 257
Generic prescribing
64%
generic claims · 36% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$318.67
8 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: KATHY BIDDINGER, O.D. is a Optometrist ([object Object]) practicing in ATHENS, Ohio with a Medicare Part D prescribing footprint of 365 claims across 100 beneficiaries — 36% brand-name prescribing . Industry payments of $318.67 across 8 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: KATHY BIDDINGER, O.D. filed 365 Medicare Part D claims in 2023 across ATHENS, Ohio. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

KATHY BIDDINGER, O.D. at a glance

Quality data not reported

NPI registry status

Active

Issued 04/03/2006

NPI 1669434130

Primary specialty

Optometrist

High-volume

60,463 US NPIs in this specialty

Medicare Part D claims

365 42% vs specialty avg

2023 prescription claims

Specialty avg: 257

Specialty distribution in Ohio

How Optometrist compares to other specialties among Ohio providers

Ohio providers

Optometrist share within Ohio

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

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).

KATHY BIDDINGER, O.D. is a Optometrist provider practicing in ATHENS, Ohio, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: O.D.. NPI: 1669434130. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

KATHY BIDDINGER, O.D. appears in the CMS NPPES registry as a Optometrist provider holding O.D. credentials at 199 COLUMBUS RD, ATHENS, OH, 45701, with a listed phone of (740) 593-3191. NPI 1669434130 was issued on 04/03/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what BIDDINGER 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 365 prescription claims written by this provider, covering 100 Medicare beneficiaries and totaling roughly $74K in drug spend, split 36% brand-name and 64% 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

199 COLUMBUS RD
ATHENS, OH 45701

Provider Details

NPI 1669434130
Specialty Optometrist
Credentials O.D.
Gender Female
NPI Issued 04/03/2006

Hospital and facility affiliations

Facilities where KATHY BIDDINGER, O.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.

ATHENS EYE PROFESSIONALS LLC
ATHENS, OH

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 KATHY BIDDINGER, O.D.. Source: openpaymentsdata.cms.gov.

Total received

$319

Largest payer

CooperVision 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.

License & disciplinary context — Ohio OMB 2023 annual report

Aggregate state board data only — NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~48K Ohio medical licensees in 2023 — they are NOT specific to KATHY BIDDINGER, O.D.. To verify KATHY BIDDINGER, O.D.'s current license status, search the OMB public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

158
Total board actions, Ohio 2023
Across 154 cases
3.29
Actions per 1,000 licensees
Ohio statewide rate
probation
Most common action type
56 cases

OMB publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Ohio disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Above average

KATHY BIDDINGER, O.D. — brand share 36.0%
Specialty average (est.)

36% brand-name claims vs 64% generic, on 365 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.

365
Total Claims
$74K
Total Drug Cost
100
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
735
Total Day Supply
21,166
Brand vs Generic
36% brand / 64% generic
Brand Drug Cost
$69K
Generic Drug Cost
$5K

Patient Demographics

Average Patient Age
73.0 years
Avg HCC Risk Score
1.07
Gender Split
72% female / 28% male

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Latanoprost
188
Timolol Maleate
36
Rocklatan
Netarsudil Mesylat/Latanoprost
18
Lumigan
Bimatoprost
17
Alphagan P
Brimonidine Tartrate
15
Neomycin-Polymyxin-Dexameth
Neomycin/Polymyxin B/Dexametha
13
Xiidra
Lifitegrast
13
Restasis
Cyclosporine
11

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

Optometrist Overview

How KATHY BIDDINGER, O.D. fits within the Optometrist landscape nationally.

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

KATHY BIDDINGER, O.D.'s 365 claims are above the specialty average of 257.

Nearby Optometrist Providers in Ohio

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

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

Frequently Asked Questions

What is KATHY BIDDINGER, O.D.'s specialty?
KATHY BIDDINGER, O.D. specializes in Optometrist and practices in ATHENS, Ohio. Credentials: O.D..
How much does KATHY BIDDINGER, O.D. prescribe under Medicare Part D?
In 2023, KATHY BIDDINGER, O.D. wrote 365 Medicare Part D claims totaling $74K in drug costs for 100 beneficiaries.
Where is KATHY BIDDINGER, O.D. located?
KATHY BIDDINGER, O.D. is located at 199 COLUMBUS RD, ATHENS, OH, 45701. Phone: (740) 593-3191.
What is KATHY BIDDINGER, O.D.'s NPI number?
KATHY BIDDINGER, O.D.'s National Provider Identifier (NPI) is 1669434130, issued on 04/03/2006.
Does KATHY BIDDINGER, O.D. prescribe more brand-name or generic drugs?
KATHY BIDDINGER, O.D.'s prescribing is 36% brand-name and 64% generic drugs by claim count, with $69K 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 KATHY BIDDINGER, O.D. prescribe most often?
Based on 2023 Medicare Part D data, KATHY BIDDINGER, O.D.'s most frequently prescribed drugs include Latanoprost, Timolol Maleate, Rocklatan. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does KATHY BIDDINGER, O.D. accept Medicare?
KATHY BIDDINGER, O.D. appears in CMS Medicare data with 365 Part D claims and 100 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify KATHY BIDDINGER, O.D.'s credentials?
KATHY BIDDINGER, O.D.'s NPI is 1669434130 with credentials O.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