NPI registry status
Active
2026 NPPES data Hematology (Internal Medicine) Physician NPI 1184980252 MD
Verify on CMS → Patrick Ellsworth, MD
Hematology (Internal Medicine) Physician in Chapel Hill, North Carolina.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 1,436 in Hematology (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
84
Medicare Part D claims · 23 beneficiaries · Hematology (Internal Medicine) Physician avg: 693
Generic prescribing
82%
generic claims · 18% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$8.3K
6 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Patrick Ellsworth, MD filed 84 Medicare Part D claims in 2023 as a Hematology (Internal Medicine) Physician in Chapel Hill, North Carolina, prescribing 82% generic.
- 84
- Part D claims, 2023
- 82%
- 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.
Patrick Ellsworth, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
84 0th percentile higher than 0% of 1,370,886 prescribers
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)
Patrick Ellsworth, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation - 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 Patrick Ellsworth, MD?
Quality data not reportedPrimary specialty
Hematology (Internal Medicine) Physician
Medicare Part D claims
84 88% vs specialty avg
Specialty distribution in North Carolina
How Hematology (Internal Medicine) Physician compares to other specialties among North Carolina 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 Hematology (Internal Medicine) Physician. Verify directly:
How MIPS and board certification work
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).
Patrick Ellsworth, MD appears in the CMS NPPES registry as a Hematology (Internal Medicine) Physician provider holding MD credentials at 101 MANNING DR, Chapel Hill, NC, 27514, with a listed phone of (984) 974-1000. NPI 1184980252 was issued on 04/03/2012.
Medicare Part D records for calendar year 2023 show 84 prescription claims written by this provider, covering 23 Medicare beneficiaries and totaling roughly $27K in drug spend, split 18% brand-name and 82% generic by claim count, with an opioid prescribing rate of 53.6%.
Hematology (Internal Medicine) Physician is a narrow specialty nationwide, with 1,436 enrolled providers across 50 states and an average of 693 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
Provider Details
| NPI | 1184980252 |
|---|---|
| Specialty | Hematology (Internal Medicine) Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 04/03/2012 |
Hospital and facility affiliations
Facilities where Patrick Ellsworth, 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.
University OF North Carolina AT Chapel Hill
Chapel Hill, 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 Patrick Ellsworth, MD. Source: openpaymentsdata.cms.gov.
Total received
$8.3K
Largest payer
GENZYME CORPORATION
Most common payment type
Travel and Lodging
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.
Brand vs generic prescribing mix · Typical
Patrick Ellsworth, MD - brand share 18.0%
Hematology (Internal Medicine) Physician average
18% brand-name claims vs 82% generic, on 84 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.
84
Total Claims
$27K
Total Drug Cost
23
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 86
- Total Day Supply
- 1,793
- Brand vs Generic
- 18% brand / 82% generic
- Brand Drug Cost
- $24K
- Generic Drug Cost
- $3K
- Opioid Claims
- 45 (53.6% rate)
Patient Demographics
- Average Patient Age
- 53.4 years
- Avg HCC Risk Score
- 3.19
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
| Drug | Claims |
|---|---|
| Methadone Hcl | 23 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Hematology (Internal Medicine) Physician in NC →
All providers in North Carolina →
Compare specialties →
Hematology (Internal Medicine) Physician Overview
How Patrick Ellsworth, MD fits within the Hematology (Internal Medicine) Physician landscape nationally.
1,436
Hematology (Internal Medicine) Physician Providers in US
50
States with Hematology (Internal Medicine) Physician
693
Avg Claims per Provider
Patrick Ellsworth, MD's 84 claims are below the specialty average of 693.
Nearby Hematology (Internal Medicine) Physician Providers in North Carolina
Other clinicians with the same primary specialty enrolled in North Carolina, drawn from the same CMS NPPES roster as Ellsworth.
Dr. Charles Agbemabiese
M.D.
Thomasville, NC
Dr. Gowthami Arepally
MD
Durham, NC
Dr. Swetha Arshanapally
M.D.
Salisbury, NC
Dr. Trevor Austin
MD
Asheville, NC
Dr. Andrew Beardsley
M.D.
Asheville, NC
Compare Hematology (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 North Carolina medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Hematology (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.
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Explore North Carolina
Frequently Asked Questions
What is Patrick Ellsworth, MD's specialty? ▼
Patrick Ellsworth, MD specializes in Hematology (Internal Medicine) Physician and practices in Chapel Hill, North Carolina. Credentials: MD.
How much does Patrick Ellsworth, MD prescribe under Medicare Part D? ▼
In 2023, Patrick Ellsworth, MD wrote 84 Medicare Part D claims totaling $27K in drug costs for 23 beneficiaries.
Where is Patrick Ellsworth, MD located? ▼
Patrick Ellsworth, MD is located at 101 MANNING DR, Chapel Hill, NC, 27514. Phone: (984) 974-1000.
What is Patrick Ellsworth, MD's NPI number? ▼
Patrick Ellsworth, MD's National Provider Identifier (NPI) is 1184980252, issued on 04/03/2012.
Does Patrick Ellsworth, MD prescribe more brand-name or generic drugs? ▼
Patrick Ellsworth, MD's prescribing is 18% brand-name and 82% generic drugs by claim count, with $24K in brand drug costs.
Does Patrick Ellsworth, MD prescribe opioids? ▼
Yes, Patrick Ellsworth, MD had 45 opioid claims in 2023 with an opioid prescribing rate of 53.6%.
How many Hematology (Internal Medicine) Physician providers are there in the US? ▼
There are 1,436 Hematology (Internal Medicine) Physician providers across 50 states in the US. The average Hematology (Internal Medicine) Physician provider writes 693 Medicare Part D claims per year.
What drugs does Patrick Ellsworth, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Patrick Ellsworth, MD's most frequently prescribed drugs include Methadone Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Patrick Ellsworth, MD accept Medicare? ▼
Patrick Ellsworth, MD appears in CMS Medicare data with 84 Part D claims and 23 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Patrick Ellsworth, MD's credentials? ▼
Patrick Ellsworth, MD's NPI is 1184980252 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
View source datasets and methodology notes
- 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.