NPI registry status
Active
2026 NPPES data Infectious Disease Physician NPI 1255497640 MD
Verify on CMS → Brian Gunter, MD
Infectious Disease Physician in Greenwood, South 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 8,314 in Infectious Disease 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
72
Medicare Part D claims · 23 beneficiaries · Infectious Disease Physician avg: 816
Generic prescribing
54%
generic claims · 46% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
93.4/100
▲ 10 pts above national avg 83.1 · Exceptional
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
Brian Gunter, MD reported a CMS MIPS final score of 93.4/100 - above the 83.1 national average - and filed 72 Medicare Part D claims in 2023.
- 93.4/100
- MIPS score · +10 vs avg
- 72
- Part D claims, 2023
- 54%
- 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.
Brian Gunter, MD's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
93 Top 29% higher than 71% 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 Brian Gunter, MD sits
This provider among infectious disease physician peers
Across the 2,276 infectious disease physician providers who report both Medicare Part D prescribing and a MIPS quality score, Brian Gunter, MD writes more Part D claims than 12% of them and scores higher on MIPS quality than 73% - placing this provider in the lower-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 infectious disease physician peer from a representative sample of 60; the gold marker is Brian Gunter, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Brian Gunter, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting - 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 Brian Gunter, MD?
High performer (top quartile)Primary specialty
Infectious Disease Physician
Medicare Part D claims
72 91% vs specialty avg
MIPS final score
93.4/100 10.3 pts vs avg
Specialty distribution in South Carolina
How Infectious Disease Physician compares to other specialties among South Carolina providers
Medicare quality performance, MIPS
Brian Gunter, MD's 2023 MIPS final score plotted against the Infectious Disease Physician national average
- MIPS Final Score
- 93.4/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Infectious Disease Physician) - 93.4/100 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).
Brian Gunter, MD appears in the CMS NPPES registry as an Infectious Disease Physician provider holding MD credentials at 1325 SPRING ST, Greenwood, SC, 29646, with a listed phone of (864) 725-4272. NPI 1255497640 was issued on 12/29/2006.
Medicare Part D records for calendar year 2023 show 72 prescription claims written by this provider, covering 23 Medicare beneficiaries and totaling roughly $113K in drug spend, split 46% brand-name and 54% generic by claim count. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 93.4/100 for the 2023 performance year (Quality 83.6), compared with the national average of 83.1.
Infectious Disease Physician is a mid-sized specialty nationwide, with 8,314 enrolled providers across 54 states and an average of 816 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 | 1255497640 |
|---|---|
| Specialty | Infectious Disease Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 12/29/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
93.404
Final Score
Avg: 83.1
83.5639
Quality
99.4706
Promoting Interoperability
Reporting: Alternative Payment Model
Brand vs generic prescribing mix · Above average
Brian Gunter, MD - brand share 46.0%
Infectious Disease Physician average
46% brand-name claims vs 54% generic, on 72 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.
72
Total Claims
$113K
Total Drug Cost
23
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 72
- Total Day Supply
- 1,680
- Brand vs Generic
- 46% brand / 54% generic
- Brand Drug Cost
- $109K
- Generic Drug Cost
- $5K
- Antibiotic Claims
- 27
Patient Demographics
- Average Patient Age
- 64.3 years
- Avg HCC Risk Score
- 2.53
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
| Drug | Claims |
|---|---|
| Biktarvy Bictegrav/Emtricit/Tenofov Ala | 24 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Infectious Disease Physician Overview
How Brian Gunter, MD fits within the Infectious Disease Physician landscape nationally.
8,314
Infectious Disease Physician Providers in US
54
States with Infectious Disease Physician
816
Avg Claims per Provider
Brian Gunter, MD's 72 claims are below the specialty average of 816.
Nearby Infectious Disease Physician Providers in South Carolina
Other clinicians with the same primary specialty enrolled in South Carolina, drawn from the same CMS NPPES roster as Gunter.
Dr. Jehad Abdalla
M.D.
Orangeburg, SC
Dr. Vishal Abiraj
MBBS
Bamberg, SC
Dr. Ruth Adekunle
M.D.
Charleston, SC
Dr. Cecilia Aduako
MD
Georgetown, SC
Dr. Jeremy Agostinho
M.D.
Little River, SC
Compare Infectious Disease 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 South Carolina medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Infectious Disease 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 Brian Gunter, MD's specialty? ▼
Brian Gunter, MD specializes in Infectious Disease Physician and practices in Greenwood, South Carolina. Credentials: MD.
How much does Brian Gunter, MD prescribe under Medicare Part D? ▼
In 2023, Brian Gunter, MD wrote 72 Medicare Part D claims totaling $113K in drug costs for 23 beneficiaries.
What is Brian Gunter, MD's Medicare quality score? ▼
Brian Gunter, MD has a CMS MIPS Final Score of 93.4/100 (Quality: 83.6). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Brian Gunter, MD located? ▼
Brian Gunter, MD is located at 1325 SPRING ST, Greenwood, SC, 29646. Phone: (864) 725-4272.
What is Brian Gunter, MD's NPI number? ▼
Brian Gunter, MD's National Provider Identifier (NPI) is 1255497640, issued on 12/29/2006.
Does Brian Gunter, MD prescribe more brand-name or generic drugs? ▼
Brian Gunter, MD's prescribing is 46% brand-name and 54% generic drugs by claim count, with $109K in brand drug costs.
How many Infectious Disease Physician providers are there in the US? ▼
There are 8,314 Infectious Disease Physician providers across 54 states in the US. The average Infectious Disease Physician provider writes 816 Medicare Part D claims per year.
What drugs does Brian Gunter, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Brian Gunter, MD's most frequently prescribed drugs include Biktarvy. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Brian Gunter, MD accept Medicare? ▼
Brian Gunter, MD appears in CMS Medicare data with 72 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 Brian Gunter, MD's credentials? ▼
Brian Gunter, MD's NPI is 1255497640 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.