NPI registry status
Active
2026 NPPES data Rheumatology Physician NPI 1043394901 MD
Verify on CMS → Joseph Shanahan, MD
Rheumatology Physician in Durham, 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 6,181 in Rheumatology 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 · 592 beneficiaries · Rheumatology Physician avg: 2K
Generic prescribing
79%
generic claims · 21% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
100/100
▲ 17 pts above national avg 83.1 · Exceptional
Industry payments
$15.8K
75 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
Joseph Shanahan, MD reported a CMS MIPS final score of 100/100 - above the 83.1 national average - and filed 4,315 Medicare Part D claims in 2023.
- 100/100
- MIPS score · +17 vs avg
- 4K
- Part D claims, 2023
- 79%
- 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.
Joseph Shanahan, MD's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
100 Top 7% higher than 93% 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 Joseph Shanahan, MD sits
This provider among rheumatology physician peers
Across the 2,181 rheumatology physician providers who report both Medicare Part D prescribing and a MIPS quality score, Joseph Shanahan, MD writes more Part D claims than 85% of them and scores higher on MIPS quality than 94% - 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 rheumatology physician peer from a representative sample of 60; the gold marker is Joseph Shanahan, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Joseph Shanahan, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 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 Joseph Shanahan, MD?
High performer (top quartile)Primary specialty
Rheumatology Physician
Medicare Part D claims
4,315 110% vs specialty avg
MIPS final score
100/100 16.9 pts vs avg
Specialty distribution in North Carolina
How Rheumatology Physician compares to other specialties among North Carolina providers
Medicare quality performance, MIPS
Joseph Shanahan, MD's 2023 MIPS final score plotted against the Rheumatology Physician national average
- MIPS Final Score
- 100/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Rheumatology Physician) - 100/100 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).
Joseph Shanahan, MD appears in the CMS NPPES registry as a Rheumatology Physician provider holding MD credentials at 2222 E NC HIGHWAY 54 STE 200, Durham, NC, 27713, with a listed phone of (919) 405-2040. NPI 1043394901 was issued on 10/25/2006.
Medicare Part D records for calendar year 2023 show 4,315 prescription claims written by this provider, covering 592 Medicare beneficiaries and totaling roughly $5.8 million in drug spend, split 21% brand-name and 79% generic by claim count, with an opioid prescribing rate of 4.3%. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 100/100 for the 2023 performance year (Quality 100), compared with the national average of 83.1.
Rheumatology Physician is a mid-sized specialty nationwide, with 6,181 enrolled providers across 52 states and an average of 2,054 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 | 1043394901 |
|---|---|
| Specialty | Rheumatology Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 10/25/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
100
Final Score
Avg: 83.1
100
Quality
Reporting: Group practice
Hospital and facility affiliations
Facilities where Joseph Shanahan, 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.
Select Physical Therapy Holdings Inc
Cary, NC
Shanahan Rheumatology And Immunotherapy, PLLC
Durham, 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 Joseph Shanahan, MD. Source: openpaymentsdata.cms.gov.
Total received
$15.8K
Largest payer
GlaxoSmithKline, LLC.
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
Joseph Shanahan, MD - brand share 21.0%
Rheumatology Physician average
21% brand-name claims vs 79% generic, on 4,315 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.
4,315
Total Claims
$5.8M
Total Drug Cost
592
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 8,070
- Total Day Supply
- 228,924
- Brand vs Generic
- 21% brand / 79% generic
- Brand Drug Cost
- $5.6M
- Generic Drug Cost
- $145K
- Opioid Claims
- 185 (4.3% rate)
- Antibiotic Claims
- 78
Patient Demographics
- Average Patient Age
- 71.5 years
- Avg HCC Risk Score
- 1.53
- Gender Split
- 72% female / 28% male
- Age Distribution
- <65: 91, 65-74: 282, 75-84: 184, 85+: 35
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Joseph Shanahan, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Hydroxychloroquine…
Hydroxychloroquine Sulfate
488 claims
- Prednisone
Prednisone
482 claims
- Methotrexate
Methotrexate
345 claims
- Allopurinol
Allopurinol
269 claims
- Humira(Cf) Pen 166
Humira(Cf) Pen
166 claims
- Leflunomide 128
Leflunomide
128 claims
- Celecoxib 95
Celecoxib
95 claims
- Xeljanz Xr 90
Xeljanz Xr
90 claims
| Drug | Claims |
|---|---|
| Hydroxychloroquine Sulfate | 488 |
| Prednisone | 482 |
| Methotrexate Methotrexate Sodium | 345 |
| Allopurinol | 269 |
| Humira(Cf) Pen Adalimumab | 166 |
| Leflunomide | 128 |
| Celecoxib | 95 |
| Xeljanz Xr Tofacitinib Citrate | 90 |
| Zolpidem Tartrate | 72 |
| Tramadol Hcl | 69 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Rheumatology Physician Overview
How Joseph Shanahan, MD fits within the Rheumatology Physician landscape nationally.
6,181
Rheumatology Physician Providers in US
52
States with Rheumatology Physician
2,054
Avg Claims per Provider
Joseph Shanahan, MD's 4,315 claims are above the specialty average of 2,054.
Nearby Rheumatology Physician Providers in North Carolina
Other clinicians with the same primary specialty enrolled in North Carolina, drawn from the same CMS NPPES roster as Shanahan.
Dr. Sunil Abraham
M.D.
Asheville, NC
Dr. Bilal Agha
MD
Cary, NC
Dr. Ajay Ajmani
MD
Sanford, NC
Dr. Kavitta Allem
M.D.
Raleigh, NC
Dr. Jeffrey Alloway
MD
Greenville, NC
Compare Rheumatology 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 Rheumatology 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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Medical Specialties Explained
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How insurance networks affect your costs
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Explore North Carolina
Frequently Asked Questions
What is Joseph Shanahan, MD's specialty? ▼
Joseph Shanahan, MD specializes in Rheumatology Physician and practices in Durham, North Carolina. Credentials: MD.
How much does Joseph Shanahan, MD prescribe under Medicare Part D? ▼
In 2023, Joseph Shanahan, MD wrote 4,315 Medicare Part D claims totaling $5.8M in drug costs for 592 beneficiaries.
What is Joseph Shanahan, MD's Medicare quality score? ▼
Joseph Shanahan, MD has a CMS MIPS Final Score of 100/100 (Quality: 100). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Joseph Shanahan, MD located? ▼
Joseph Shanahan, MD is located at 2222 E NC HIGHWAY 54 STE 200, Durham, NC, 27713. Phone: (919) 405-2040.
What is Joseph Shanahan, MD's NPI number? ▼
Joseph Shanahan, MD's National Provider Identifier (NPI) is 1043394901, issued on 10/25/2006.
Does Joseph Shanahan, MD prescribe more brand-name or generic drugs? ▼
Joseph Shanahan, MD's prescribing is 21% brand-name and 79% generic drugs by claim count, with $5.6M in brand drug costs.
Does Joseph Shanahan, MD prescribe opioids? ▼
Yes, Joseph Shanahan, MD had 185 opioid claims in 2023 with an opioid prescribing rate of 4.3%.
How many Rheumatology Physician providers are there in the US? ▼
There are 6,181 Rheumatology Physician providers across 52 states in the US. The average Rheumatology Physician provider writes 2,054 Medicare Part D claims per year.
What drugs does Joseph Shanahan, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Joseph Shanahan, MD's most frequently prescribed drugs include Hydroxychloroquine Sulfate, Prednisone, Methotrexate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Joseph Shanahan, MD accept Medicare? ▼
Joseph Shanahan, MD appears in CMS Medicare data with 4,315 Part D claims and 592 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Joseph Shanahan, MD's credentials? ▼
Joseph Shanahan, MD's NPI is 1043394901 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.