2026 NPPES data Specialist NPI 1255373916 MD
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CARON WARNSBY, MD

Specialist in MARSHALL, Michigan. 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
252
Medicare Part D claims · 95 beneficiaries · Specialist avg: 1K
Industry payments
$2.2K
17 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

CARON WARNSBY, MD filed 252 Medicare Part D claims in 2023 as a Specialist in MARSHALL, Michigan.

252
Part D claims, 2023
$2.2K
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.

CARON WARNSBY, MD's Medicare Part D volume vs every U.S. prescriber

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

252 49th percentile higher than 49% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). This entry sits in this band. 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 CARON WARNSBY, MD?

Quality data not reported

NPI registry status

Active

Issued 06/10/2006

NPI 1255373916

Primary specialty

Specialist

High-volume

69,658 US NPIs in this specialty

Medicare Part D claims

252 83% vs specialty avg

2023 prescription claims

Specialty avg: 1,474

Specialty distribution in Michigan

How Specialist compares to other specialties among Michigan providers

Michigan providers

Specialist share within Michigan

1. Specialist42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Specialist share within Michigan

Specialty board-certification context

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

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

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

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

CARON WARNSBY, MD appears in the CMS NPPES registry as a Specialist provider holding MD credentials at 215 E MANSION ST, MARSHALL, MI, 49068, with a listed phone of (269) 781-4267. NPI 1255373916 was issued on 06/10/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what WARNSBY 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 252 prescription claims written by this provider, covering 95 Medicare beneficiaries and totaling roughly $2K in drug spend, with an opioid prescribing rate of 25.8%. 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.

Specialist is a high-volume specialty nationwide, with 69,658 enrolled providers across 55 states and an average of 1,474 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

215 E MANSION ST
MARSHALL, MI 49068

Provider Details

NPI 1255373916
Specialty Specialist
Credentials MD
Gender Female
NPI Issued 06/10/2006

Hospital and facility affiliations

Facilities where CARON WARNSBY, MD 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.

UNC PHYSICIANS NETWORK LLC
ROCKY MOUNT, NC
UNC ROCKINGHAM HEALTH CARE INC
EDEN, NC

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 CARON WARNSBY, MD. Source: openpaymentsdata.cms.gov.

Total received

$2.2K

Largest payer

INTUITIVE SURGICAL, 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 — Michigan MI-BOM 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 ~41K Michigan medical licensees in 2023 — they are NOT specific to CARON WARNSBY, MD. To verify CARON WARNSBY, MD's current license status, search the MI-BOM public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

123
Total board actions, Michigan 2023
Across 120 cases
3.00
Actions per 1,000 licensees
Michigan statewide rate
probation
Most common action type
44 cases

MI-BOM 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 Michigan 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.

252
Total Claims
$2K
Total Drug Cost
95
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
258
Total Day Supply
1,954
Generic Drug Cost
$2K
Opioid Claims
65 (25.8% rate)
Antibiotic Claims
39

Patient Demographics

Average Patient Age
71.2 years
Avg HCC Risk Score
1.40
Gender Split
65% female / 35% male

Top Prescribed Drugs (Medicare Part D)

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

What CARON WARNSBY, 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
Ondansetron Odt
Ondansetron
61
Oxycodone Hcl
58
Ibuprofen
49
Amoxicillin-Clavulanate Potass
Amoxicillin/Potassium Clav
20
Hydrocortisone
12

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

Specialist Overview

How CARON WARNSBY, MD fits within the Specialist landscape nationally.

69,658
Specialist Providers in US
55
States with Specialist
1,474
Avg Claims per Provider

CARON WARNSBY, MD's 252 claims are below the specialty average of 1,474.

Nearby Specialist Providers in Michigan

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

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

Frequently Asked Questions

What is CARON WARNSBY, MD's specialty?
CARON WARNSBY, MD specializes in Specialist and practices in MARSHALL, Michigan. Credentials: MD.
How much does CARON WARNSBY, MD prescribe under Medicare Part D?
In 2023, CARON WARNSBY, MD wrote 252 Medicare Part D claims totaling $2K in drug costs for 95 beneficiaries.
Where is CARON WARNSBY, MD located?
CARON WARNSBY, MD is located at 215 E MANSION ST, MARSHALL, MI, 49068. Phone: (269) 781-4267.
What is CARON WARNSBY, MD's NPI number?
CARON WARNSBY, MD's National Provider Identifier (NPI) is 1255373916, issued on 06/10/2006.
Does CARON WARNSBY, MD prescribe opioids?
Yes, CARON WARNSBY, MD had 65 opioid claims in 2023 with an opioid prescribing rate of 25.8%.
How many Specialist providers are there in the US?
There are 69,658 Specialist providers across 55 states in the US. The average Specialist provider writes 1,474 Medicare Part D claims per year.
What drugs does CARON WARNSBY, MD prescribe most often?
Based on 2023 Medicare Part D data, CARON WARNSBY, MD's most frequently prescribed drugs include Ondansetron Odt, Oxycodone Hcl, Ibuprofen. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does CARON WARNSBY, MD accept Medicare?
CARON WARNSBY, MD appears in CMS Medicare data with 252 Part D claims and 95 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify CARON WARNSBY, MD's credentials?
CARON WARNSBY, MD's NPI is 1255373916 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