NPI registry status
Active
2026 NPPES data Internal Medicine Physician NPI 1457588279 MD, MPH
Verify on CMS → Joseph Joyner, MD, MPH
Internal Medicine Physician in Charlotte, 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 172,858 in 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
5K
Medicare Part D claims · 430 beneficiaries · Internal Medicine Physician avg: 3K
Generic prescribing
82%
generic claims · 15% brand-name · higher generic rates reduce patient out-of-pocket costs
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 Joyner, MD, MPH filed 5,461 Medicare Part D claims in 2023 as a Internal Medicine Physician in Charlotte, North Carolina, prescribing 82% generic.
- 5K
- Part D claims, 2023
- 82%
- generic prescribing
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 Joyner, MD, MPH's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
5,461 Top 6% higher than 94% 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-eligible specialty (heuristic, not verified)
Joseph Joyner, MD, MPH practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Joseph Joyner, MD, MPH?
Quality data not reportedPrimary specialty
Internal Medicine Physician
Medicare Part D claims
5,461 101% vs specialty avg
Specialty distribution in North Carolina
How 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 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).
Joseph Joyner, MD, MPH appears in the CMS NPPES registry as a Internal Medicine Physician provider holding MD, MPH credentials at 3506 W TYVOLA RD, Charlotte, NC, 28208, with a listed phone of (704) 329-1300. NPI 1457588279 was issued on 06/19/2009.
Medicare Part D records for calendar year 2023 show 5,461 prescription claims written by this provider, covering 430 Medicare beneficiaries and totaling roughly $875K in drug spend, split 15% brand-name and 82% generic by claim count, with an opioid prescribing rate of 6.6%.
Internal Medicine Physician is a high-volume specialty nationwide, with 172,858 enrolled providers across 56 states and an average of 2,716 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 | 1457588279 |
|---|---|
| Specialty | Internal Medicine Physician |
| Credentials | MD, MPH |
| Gender | Male |
| NPI Issued | 06/19/2009 |
Brand vs generic prescribing mix · Typical
Joseph Joyner, MD, MPH - brand share 15.0%
Internal Medicine Physician average
15% brand-name claims vs 82% generic, on 5,461 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.
5,461
Total Claims
$875K
Total Drug Cost
430
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 11,284
- Total Day Supply
- 325,886
- Brand vs Generic
- 15% brand / 82% generic
- Brand Drug Cost
- $714K
- Generic Drug Cost
- $150K
- Opioid Claims
- 363 (6.6% rate)
- Antibiotic Claims
- 67
Patient Demographics
- Average Patient Age
- 69.4 years
- Avg HCC Risk Score
- 1.54
- Gender Split
- 45% female / 55% male
- Age Distribution
- <65: 95, 65-74: 203, 75-84: 107, 85+: 25
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Joseph Joyner, MD, MPH prescribes most
Top Medicare Part D drugs by claim count, 2023
- Atorvastatin Calcium
Atorvastatin Calcium
381 claims
- Omeprazole
Omeprazole
254 claims
- Lisinopril
Lisinopril
246 claims
- Amlodipine Besylate
Amlodipine Besylate
234 claims
- Metformin Hcl
Metformin Hcl
207 claims
- Metoprolol Succinate 129
Metoprolol Succinate
129 claims
- Levothyroxine Sodium 126
Levothyroxine Sodium
126 claims
- Oxycodone Hcl 117
Oxycodone Hcl
117 claims
| Drug | Claims |
|---|---|
| Atorvastatin Calcium | 381 |
| Omeprazole | 254 |
| Lisinopril | 246 |
| Amlodipine Besylate | 234 |
| Metformin Hcl | 207 |
| Metoprolol Succinate | 129 |
| Levothyroxine Sodium | 126 |
| Oxycodone Hcl | 117 |
| Jardiance Empagliflozin | 113 |
| Gabapentin | 105 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Internal Medicine Physician Overview
How Joseph Joyner, MD, MPH fits within the Internal Medicine Physician landscape nationally.
172,858
Internal Medicine Physician Providers in US
56
States with Internal Medicine Physician
2,716
Avg Claims per Provider
Joseph Joyner, MD, MPH's 5,461 claims are above the specialty average of 2,716.
Nearby 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 Joyner.
Dr. Ana Abaroa-Salvatierra
M.D.
Pollocksville, NC
Dr. Naa Deisa Abbey
MD
Shelby, NC
Dr. Hanie Abdel Masih
D.O.
Rockingham, NC
Dr. Rami Abdo
MD
Durham, NC
Dr. Farhath Abdul Kareem
MD
Cary, NC
Compare 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 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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Frequently Asked Questions
What is Joseph Joyner, MD, MPH's specialty? ▼
Joseph Joyner, MD, MPH specializes in Internal Medicine Physician and practices in Charlotte, North Carolina. Credentials: MD, MPH.
How much does Joseph Joyner, MD, MPH prescribe under Medicare Part D? ▼
In 2023, Joseph Joyner, MD, MPH wrote 5,461 Medicare Part D claims totaling $875K in drug costs for 430 beneficiaries.
Where is Joseph Joyner, MD, MPH located? ▼
Joseph Joyner, MD, MPH is located at 3506 W TYVOLA RD, Charlotte, NC, 28208. Phone: (704) 329-1300.
What is Joseph Joyner, MD, MPH's NPI number? ▼
Joseph Joyner, MD, MPH's National Provider Identifier (NPI) is 1457588279, issued on 06/19/2009.
Does Joseph Joyner, MD, MPH prescribe more brand-name or generic drugs? ▼
Joseph Joyner, MD, MPH's prescribing is 15% brand-name and 82% generic drugs by claim count, with $714K in brand drug costs.
Does Joseph Joyner, MD, MPH prescribe opioids? ▼
Yes, Joseph Joyner, MD, MPH had 363 opioid claims in 2023 with an opioid prescribing rate of 6.6%.
How many Internal Medicine Physician providers are there in the US? ▼
There are 172,858 Internal Medicine Physician providers across 56 states in the US. The average Internal Medicine Physician provider writes 2,716 Medicare Part D claims per year.
What drugs does Joseph Joyner, MD, MPH prescribe most often? ▼
Based on 2023 Medicare Part D data, Joseph Joyner, MD, MPH's most frequently prescribed drugs include Atorvastatin Calcium, Omeprazole, Lisinopril. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Joseph Joyner, MD, MPH accept Medicare? ▼
Joseph Joyner, MD, MPH appears in CMS Medicare data with 5,461 Part D claims and 430 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Joseph Joyner, MD, MPH's credentials? ▼
Joseph Joyner, MD, MPH's NPI is 1457588279 with credentials MD, MPH. 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.