NPI registry status
Active
2026 NPPES data Medical Oncology Physician NPI 1518178524 MD
Verify on CMS → Natale Sheehan, MD
Medical Oncology Physician in Jackson, Mississippi.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 3,815 in Medical Oncology 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 · 314 beneficiaries · Medical Oncology Physician avg: 689
Generic prescribing
89%
generic claims · 11% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
99/100
▲ 16 pts above national avg 83.1 · Exceptional
Industry payments
$593.9
31 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
Natale Sheehan, MD reported a CMS MIPS final score of 99/100 - above the 83.1 national average - and filed 2,000 Medicare Part D claims in 2023.
- 99/100
- MIPS score · +16 vs avg
- 2K
- Part D claims, 2023
- 89%
- 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.
Natale Sheehan, MD's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
99 Top 11% higher than 89% of 477,587 scored providers
Each bar is a band; taller bars hold more scored providers. 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 Merit-based Incentive Payment System (MIPS) · 2023
Where Natale Sheehan, MD sits
This provider among medical oncology physician peers
Across the 1,527 medical oncology physician providers who report both Medicare Part D prescribing and a MIPS quality score, Natale Sheehan, MD writes more Part D claims than 93% of them and scores higher on MIPS quality than 91% - placing this provider in the high-volume, high-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Part D claim volume vs MIPS quality, by specialty percentile
Each dot is one medical oncology physician peer from a representative sample of 60; the gold marker is Natale Sheehan, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Natale Sheehan, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 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 Natale Sheehan, MD?
High performer (top quartile)Primary specialty
Medical Oncology Physician
Medicare Part D claims
2,000 190% vs specialty avg
MIPS final score
99/100 15.9 pts vs avg
Specialty distribution in Mississippi
How Medical Oncology Physician compares to other specialties among Mississippi providers
Medicare quality performance, MIPS
Natale Sheehan, MD's 2023 MIPS final score plotted against the Medical Oncology Physician national average
- MIPS Final Score
- 99/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Medical Oncology Physician) - 99/100 vs national avg 83.1
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).
Natale Sheehan, MD appears in the CMS NPPES registry as a Medical Oncology Physician provider holding MD credentials at 1227 N STATE ST STE 101, Jackson, MS, 39202, with a listed phone of (601) 355-2485. NPI 1518178524 was issued on 05/24/2007.
Medicare Part D records for calendar year 2023 show 2,000 prescription claims written by this provider, covering 314 Medicare beneficiaries and totaling roughly $3.3 million in drug spend, split 11% brand-name and 89% generic by claim count, with an opioid prescribing rate of 2.6%. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 99/100 for the 2023 performance year (Quality 97.9), compared with the national average of 83.1.
Medical Oncology Physician is a narrow specialty nationwide, with 3,815 enrolled providers across 53 states and an average of 689 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 | 1518178524 |
|---|---|
| Specialty | Medical Oncology Physician |
| Credentials | MD |
| Gender | Female |
| NPI Issued | 05/24/2007 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
98.9653
Final Score
Avg: 83.1
97.9306
Quality
Reporting: Individual
Hospital and facility affiliations
Facilities where Natale Sheehan, 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.
Jackson Oncology Associates
Jackson, MS
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 Natale Sheehan, MD. Source: openpaymentsdata.cms.gov.
Total received
$594
Largest payer
Celgene Corporation
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.
Brand vs generic prescribing mix · Typical
Natale Sheehan, MD - brand share 11.0%
Medical Oncology Physician average
11% brand-name claims vs 89% generic, on 2,000 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.
2,000
Total Claims
$3.3M
Total Drug Cost
314
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 2,561
- Total Day Supply
- 65,795
- Brand vs Generic
- 11% brand / 89% generic
- Brand Drug Cost
- $2.5M
- Generic Drug Cost
- $777K
- Opioid Claims
- 53 (2.6% rate)
- Antibiotic Claims
- 45
Patient Demographics
- Average Patient Age
- 71.5 years
- Avg HCC Risk Score
- 1.85
- Gender Split
- 80% female / 20% male
- Age Distribution
- <65: 49, 65-74: 157, 75-84: 87, 85+: 21
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Natale Sheehan, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Letrozole
Letrozole
336 claims
- Potassium Chloride
Potassium Chloride
194 claims
- Tamoxifen Citrate
Tamoxifen Citrate
157 claims
- Gabapentin 73
Gabapentin
73 claims
- Dexamethasone 70
Dexamethasone
70 claims
- Ondansetron Odt 61
Ondansetron Odt
61 claims
- Venlafaxine Hcl Er 56
Venlafaxine Hcl Er
56 claims
- Duloxetine Hcl 51
Duloxetine Hcl
51 claims
| Drug | Claims |
|---|---|
| Letrozole | 336 |
| Potassium Chloride | 194 |
| Tamoxifen Citrate | 157 |
| Gabapentin | 73 |
| Dexamethasone | 70 |
| Ondansetron Odt Ondansetron | 61 |
| Venlafaxine Hcl Er Venlafaxine Hcl | 56 |
| Duloxetine Hcl | 51 |
| Prochlorperazine Maleate | 48 |
| Anastrozole | 45 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Medical Oncology Physician Overview
How Natale Sheehan, MD fits within the Medical Oncology Physician landscape nationally.
3,815
Medical Oncology Physician Providers in US
53
States with Medical Oncology Physician
689
Avg Claims per Provider
Natale Sheehan, MD's 2,000 claims are above the specialty average of 689.
Nearby Medical Oncology Physician Providers in Mississippi
Other clinicians with the same primary specialty enrolled in Mississippi, drawn from the same CMS NPPES roster as Sheehan.
Dr. James Clarkson
M.D.
Pascagoula, MS
Dr. Nicole Cleveland
MD
Jackson, MS
Dr. Edwin Davidson
MD
Gulfport, MS
Dr. Bobby Graham
M.D.
Jackson, MS
Dr. Robert Hamilton
MD
Jackson, MS
Compare Medical Oncology 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 Mississippi medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Medical Oncology 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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Frequently Asked Questions
What is Natale Sheehan, MD's specialty? ▼
Natale Sheehan, MD specializes in Medical Oncology Physician and practices in Jackson, Mississippi. Credentials: MD.
How much does Natale Sheehan, MD prescribe under Medicare Part D? ▼
In 2023, Natale Sheehan, MD wrote 2,000 Medicare Part D claims totaling $3.3M in drug costs for 314 beneficiaries.
What is Natale Sheehan, MD's Medicare quality score? ▼
Natale Sheehan, MD has a CMS MIPS Final Score of 99/100 (Quality: 97.9). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Natale Sheehan, MD located? ▼
Natale Sheehan, MD is located at 1227 N STATE ST STE 101, Jackson, MS, 39202. Phone: (601) 355-2485.
What is Natale Sheehan, MD's NPI number? ▼
Natale Sheehan, MD's National Provider Identifier (NPI) is 1518178524, issued on 05/24/2007.
Does Natale Sheehan, MD prescribe more brand-name or generic drugs? ▼
Natale Sheehan, MD's prescribing is 11% brand-name and 89% generic drugs by claim count, with $2.5M in brand drug costs.
Does Natale Sheehan, MD prescribe opioids? ▼
Yes, Natale Sheehan, MD had 53 opioid claims in 2023 with an opioid prescribing rate of 2.6%.
How many Medical Oncology Physician providers are there in the US? ▼
There are 3,815 Medical Oncology Physician providers across 53 states in the US. The average Medical Oncology Physician provider writes 689 Medicare Part D claims per year.
What drugs does Natale Sheehan, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Natale Sheehan, MD's most frequently prescribed drugs include Letrozole, Potassium Chloride, Tamoxifen Citrate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Natale Sheehan, MD accept Medicare? ▼
Natale Sheehan, MD appears in CMS Medicare data with 2,000 Part D claims and 314 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Natale Sheehan, MD's credentials? ▼
Natale Sheehan, MD's NPI is 1518178524 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.
- Quality Performance
- CMS Merit-based Incentive Payment System (MIPS) - 2023 performance year.
- 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.