2026 NPPES data Endocrinology, Diabetes & Metabolism Physician NPI 1215139951 M.D.
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Kenneth Patrick Ligaray, M.D.

Endocrinology, Diabetes & Metabolism Physician in Madison, Wisconsin. This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 7,852 in Endocrinology, Diabetes & Metabolism 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
4K
Medicare Part D claims · 332 beneficiaries · Endocrinology, Diabetes & Metabolism Physician avg: 3K
Generic prescribing
37%
generic claims · 55% brand-name · higher generic rates reduce patient out-of-pocket costs
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Kenneth Patrick Ligaray, M.D. filed 3,988 Medicare Part D claims in 2023 as a Endocrinology, Diabetes & Metabolism Physician in Madison, Wisconsin, prescribing 37% generic.

4K
Part D claims, 2023
37%
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.

Kenneth Patrick Ligaray, M.D.'s Medicare Part D volume vs every U.S. prescriber

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

3,988 Top 9% higher than 91% 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 certification likely (heuristic, not verified)

Kenneth Patrick Ligaray, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 2 hospital affiliations - 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 Kenneth Patrick Ligaray, M.D.?

Quality data not reported

NPI registry status

Active

Issued 06/04/2007

NPI 1215139951

Primary specialty

Endocrinology, Diabetes & Metabolism Physician

Mid-sized

7,852 US NPIs in this specialty

Medicare Part D claims

3,988 51% vs specialty avg

2023 prescription claims

Specialty avg: 2,639

Specialty distribution in Wisconsin

How Endocrinology, Diabetes & Metabolism Physician compares to other specialties among Wisconsin providers

Wisconsin providers
Physical Therapist - 5.6%Physical Therapist5.6%Pharmacist - 4.8%Pharmacist4.8%Registered Nurse - 4.5%Registered Nurse4.5%Professional Counselor - 3.3%Professional Counselor3.3%Student in an Organized Health Care Education/Training Program - 3.3%Student in an Organized Health Care Education/Training Program3.3%Family Medicine Physician - 3.2%Family Medicine Physician3.2%Endocrinology, Diabetes & Metabolism Physician - 0.1%Endocrinology, Diabetes & Metabolism Physician0.1%
Largest specialties in Wisconsin (% 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 Endocrinology, Diabetes & Metabolism 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).

Kenneth Patrick Ligaray, M.D. appears in the CMS NPPES registry as a Endocrinology, Diabetes & Metabolism Physician provider holding M.D. credentials at 345 W WASHINGTON AVE, Madison, WI, 53703, with a listed phone of (608) 417-8300. NPI 1215139951 was issued on 06/04/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Ligaray 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 3,988 prescription claims written by this provider, covering 332 Medicare beneficiaries and totaling roughly $2.0 million in drug spend, split 55% brand-name and 37% 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.

Endocrinology, Diabetes & Metabolism Physician is a mid-sized specialty nationwide, with 7,852 enrolled providers across 54 states and an average of 2,639 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

345 W WASHINGTON AVE
Madison, WI 53703

Provider Details

NPI 1215139951
Specialty Endocrinology, Diabetes & Metabolism Physician
Credentials M.D.
Gender Male
NPI Issued 06/04/2007

Hospital and facility affiliations

Facilities where Kenneth Patrick Ligaray, M.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.

Meriter Hospital Inc
Madison, WI
University OF Wisconsin Medical Foundation Inc
Madison, 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).

Brand vs generic prescribing mix · Brand-heavy

Kenneth Patrick Ligaray, M.D. - brand share 55.0%
Endocrinology, Diabetes & Metabolism Physician average

55% brand-name claims vs 37% generic, on 3,988 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.

3,988
Total Claims
$2.0M
Total Drug Cost
332
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
7,788
Total Day Supply
228,232
Brand vs Generic
55% brand / 37% generic
Brand Drug Cost
$1.9M
Generic Drug Cost
$30K

Patient Demographics

Average Patient Age
70.1 years
Avg HCC Risk Score
1.76
Gender Split
57% female / 43% male

Top Prescribed Drugs (Medicare Part D)

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

What Kenneth Patrick Ligaray, 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
Levothyroxine Sodium
388
Trulicity
Dulaglutide
319
Jardiance
Empagliflozin
226
Metformin Hcl
191
Metformin Hcl Er
Metformin Hcl
174
Novolog Flexpen
Insulin Aspart
142
Farxiga
Dapagliflozin Propanediol
110
Glimepiride
100
Atorvastatin Calcium
88
Rosuvastatin Calcium
85

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

Endocrinology, Diabetes & Metabolism Physician Overview

How Kenneth Patrick Ligaray, M.D. fits within the Endocrinology, Diabetes & Metabolism Physician landscape nationally.

7,852
Endocrinology, Diabetes & Metabolism Physician Providers in US
54
States with Endocrinology, Diabetes & Metabolism Physician
2,639
Avg Claims per Provider

Kenneth Patrick Ligaray, M.D.'s 3,988 claims are above the specialty average of 2,639.

Nearby Endocrinology, Diabetes & Metabolism Physician Providers in Wisconsin

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

Compare Endocrinology, Diabetes & Metabolism 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 Wisconsin medical board, federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Endocrinology, Diabetes & Metabolism 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 Kenneth Patrick Ligaray, M.D.'s specialty?
Kenneth Patrick Ligaray, M.D. specializes in Endocrinology, Diabetes & Metabolism Physician and practices in Madison, Wisconsin. Credentials: M.D..
How much does Kenneth Patrick Ligaray, M.D. prescribe under Medicare Part D?
In 2023, Kenneth Patrick Ligaray, M.D. wrote 3,988 Medicare Part D claims totaling $2.0M in drug costs for 332 beneficiaries.
Where is Kenneth Patrick Ligaray, M.D. located?
Kenneth Patrick Ligaray, M.D. is located at 345 W WASHINGTON AVE, Madison, WI, 53703. Phone: (608) 417-8300.
What is Kenneth Patrick Ligaray, M.D.'s NPI number?
Kenneth Patrick Ligaray, M.D.'s National Provider Identifier (NPI) is 1215139951, issued on 06/04/2007.
Does Kenneth Patrick Ligaray, M.D. prescribe more brand-name or generic drugs?
Kenneth Patrick Ligaray, M.D.'s prescribing is 55% brand-name and 37% generic drugs by claim count, with $1.9M in brand drug costs.
How many Endocrinology, Diabetes & Metabolism Physician providers are there in the US?
There are 7,852 Endocrinology, Diabetes & Metabolism Physician providers across 54 states in the US. The average Endocrinology, Diabetes & Metabolism Physician provider writes 2,639 Medicare Part D claims per year.
What drugs does Kenneth Patrick Ligaray, M.D. prescribe most often?
Based on 2023 Medicare Part D data, Kenneth Patrick Ligaray, M.D.'s most frequently prescribed drugs include Levothyroxine Sodium, Trulicity, Jardiance. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Kenneth Patrick Ligaray, M.D. accept Medicare?
Kenneth Patrick Ligaray, M.D. appears in CMS Medicare data with 3,988 Part D claims and 332 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Kenneth Patrick Ligaray, M.D.'s credentials?
Kenneth Patrick Ligaray, M.D.'s NPI is 1215139951 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

Compiled from official public sources by the PlainDoctor editorial team.