2026 NPPES data Internal Medicine Physician NPI 1699937656 MD
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Kathryn Leininger, MD

Internal Medicine Physician in Akron, Ohio. This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 172,858 in Internal Medicine 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
2K
Medicare Part D claims · 380 beneficiaries · Internal Medicine Physician avg: 3K
Industry payments
$16.9
1 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Kathryn Leininger, MD filed 2,046 Medicare Part D claims in 2023 as a Internal Medicine Physician in Akron, Ohio.

2K
Part D claims, 2023
$16.9
industry payments (Sunshine Act)

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.

Kathryn Leininger, MD's Medicare Part D volume vs every U.S. prescriber

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

2,046 Top 16% higher than 84% 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%). Below this entry. 1,000–1,200: 31,827 prescribers (2%). Below this entry. 1,200–1,400: 26,224 prescribers (2%). Below this entry. 1,400–1,600: 21,710 prescribers (2%). Below this entry. 1,600–1,800: 19,072 prescribers (1%). Below this entry. 1,800–2,000: 16,451 prescribers (1%). Below this entry. 2K+: 213,991 prescribers (16%). This entry sits in this band. 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)

Kathryn Leininger, MD 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 Kathryn Leininger, MD?

Quality data not reported

NPI registry status

Active

Issued 06/30/2008

NPI 1699937656

Primary specialty

Internal Medicine Physician

High-volume

172,858 US NPIs in this specialty

Medicare Part D claims

2,046 25% vs specialty avg

2023 prescription claims

Specialty avg: 2,716

Specialty distribution in Ohio

How Internal Medicine Physician compares to other specialties among Ohio providers

Ohio providers
Case Manager/Care Coordinator - 10.9%Case Manager/Care Coordinator10.9%Student in an Organized Health Care Education/Training Program - 4.7%Student in an Organized Health Care Education/Training Program4.7%Licensed Practical Nurse - 4%Licensed Practical Nurse4%Addiction (Substance Use Disorder) Counselor - 3.5%Addiction (Substance Use Disorder) Counselor3.5%Registered Nurse - 3.4%Registered Nurse3.4%Pharmacist - 3.4%Pharmacist3.4%Internal Medicine Physician - 1.9%Internal Medicine Physician1.9%
Largest specialties in Ohio (% of in-state providers)

Board certification

Not published by CMS

CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Internal Medicine Physician. Verify directly:

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).

Kathryn Leininger, MD appears in the CMS NPPES registry as a Internal Medicine Physician provider holding MD credentials at 224 W EXCHANGE ST, Akron, OH, 44302, with a listed phone of (330) 344-6505. NPI 1699937656 was issued on 06/30/2008. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Leininger 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 2,046 prescription claims written by this provider, covering 380 Medicare beneficiaries and totaling roughly $5.0 million in drug spend, with an opioid prescribing rate of 3.5%. 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.

Internal Medicine Physician is a high-volume specialty nationwide, with 172,858 enrolled providers across 56 states and an average of 2,716 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

224 W EXCHANGE ST
Akron, OH 44302

Provider Details

NPI 1699937656
Specialty Internal Medicine Physician
Credentials MD
Gender Female
NPI Issued 06/30/2008

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 Kathryn Leininger, MD. Source: openpaymentsdata.cms.gov.

Total received

$17

Largest payer

Eisai Inc.

Most common payment type

Education

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 Kathryn Leininger, MD. To verify Kathryn Leininger, MD'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.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

2,046
Total Claims
$5.0M
Total Drug Cost
380
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
3,868
Total Day Supply
110,642
Generic Drug Cost
$385K
Opioid Claims
72 (3.5% rate)
Antibiotic Claims
43

Patient Demographics

Average Patient Age
72.4 years
Avg HCC Risk Score
2.18
Gender Split
68% female / 32% male
Age Distribution
<65: 43, 65-74: 189, 75-84: 116, 85+: 32

Top Prescribed Drugs (Medicare Part D)

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

What Kathryn Leininger, MD 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
Anastrozole
365
Prednisone
110
Eliquis
Apixaban
108
Tamoxifen Citrate
96
Letrozole
59
Abiraterone Acetate
58
Revlimid
Lenalidomide
57
Ibandronate Sodium
55
Hydroxyurea
41
Xtandi
Enzalutamide
40

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

Internal Medicine Physician Overview

How Kathryn Leininger, MD fits within the Internal Medicine Physician landscape nationally.

172,858
Internal Medicine Physician Providers in US
56
States with Internal Medicine Physician
2,716
Avg Claims per Provider

Kathryn Leininger, MD's 2,046 claims are below the specialty average of 2,716.

Nearby Internal Medicine Physician Providers in Ohio

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

Compare Internal Medicine Physician nationally: see state-by-state distribution →

Before you book an appointment

Use this federal record as your verification checklist, not as a recommendation.

  • Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
  • Check the active license and any disciplinary history with the Ohio medical board, federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Internal Medicine Physician peer on Medicare volume and prescribing patterns. Compare providers

Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.

Frequently Asked Questions

What is Kathryn Leininger, MD's specialty?
Kathryn Leininger, MD specializes in Internal Medicine Physician and practices in Akron, Ohio. Credentials: MD.
How much does Kathryn Leininger, MD prescribe under Medicare Part D?
In 2023, Kathryn Leininger, MD wrote 2,046 Medicare Part D claims totaling $5.0M in drug costs for 380 beneficiaries.
Where is Kathryn Leininger, MD located?
Kathryn Leininger, MD is located at 224 W EXCHANGE ST, Akron, OH, 44302. Phone: (330) 344-6505.
What is Kathryn Leininger, MD's NPI number?
Kathryn Leininger, MD's National Provider Identifier (NPI) is 1699937656, issued on 06/30/2008.
Does Kathryn Leininger, MD prescribe opioids?
Yes, Kathryn Leininger, MD had 72 opioid claims in 2023 with an opioid prescribing rate of 3.5%.
How many Internal Medicine Physician providers are there in the US?
There are 172,858 Internal Medicine Physician providers across 56 states in the US. The average Internal Medicine Physician provider writes 2,716 Medicare Part D claims per year.
What drugs does Kathryn Leininger, MD prescribe most often?
Based on 2023 Medicare Part D data, Kathryn Leininger, MD's most frequently prescribed drugs include Anastrozole, Prednisone, Eliquis. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Kathryn Leininger, MD accept Medicare?
Kathryn Leininger, MD appears in CMS Medicare data with 2,046 Part D claims and 380 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Kathryn Leininger, MD's credentials?
Kathryn Leininger, MD's NPI is 1699937656 with credentials MD. 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

Compiled from official public sources by the PlainDoctor editorial team.