NPI registry status
Active
2026 NPPES data Emergency Medical Services (Emergency Medicine) Physician NPI 1285648147 MD
Verify on CMS → Matthew Rhames, MD
Emergency Medical Services (Emergency Medicine) Physician in Warrenton, Virginia.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 3,651 in Emergency Medical Services (Emergency 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
165
Medicare Part D claims · 130 beneficiaries · Emergency Medical Services (Emergency Medicine) Physician avg: 430
Generic prescribing
90%
generic claims · 10% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Matthew Rhames, MD filed 165 Medicare Part D claims in 2024 as an Emergency Medical Services (Emergency Medicine) Physician in Warrenton, Virginia, prescribing 90% generic.
- 165
- Part D claims, 2024
- 90%
- generic prescribing
- ≥34th
- pct by Part D claim volume (lower-bound band)
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.
Federal trust snapshot
What official records show about Matthew Rhames, MD
Federal records show an active NPI with Medicare Part D prescribing activity — verifiable registry data, not a proprietary rating.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1285648147), first enumerated 07/28/2006.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 165 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Board certification signal
Practices in an ABMS-board-eligible specialty; board certification not confirmed in federal records.
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
CMS NPPES provider registry desk
NPI 1285648147 · Emergency Medical Services (Emergency Medicine) Physician
NPI-10 · ENUM-LEGACY · TAX-NARROW · RX-LIGHT · BOOK-THIN · PHOTO-ENUM
- NPI-10 1285648147
- ENUM-LEGACY 2006
- TAX-NARROW 3,651
- RX-LIGHT 165
- BOOK-THIN 96 in Virginia
- PHOTO-ENUM Peter Meyer · 2006
Matthew Rhames, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
165 ≥ 34th percentile 34% of 1,416,883 prescribers are in lower value bands
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.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2024
◑
Board-eligible specialty (heuristic, not verified)
Matthew Rhames, MD 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 Matthew Rhames, MD?
Quality data not reportedPrimary specialty
Emergency Medical Services (Emergency Medicine) Physician
Medicare Part D claims
165 62% vs specialty avg
Specialty distribution in Virginia
How Emergency Medical Services (Emergency Medicine) Physician compares to other specialties among Virginia 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 Emergency Medical Services (Emergency 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).
Practice Address
Provider Details
| NPI | 1285648147 |
|---|---|
| Specialty | Emergency Medical Services (Emergency Medicine) Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 07/28/2006 |
Brand vs generic prescribing mix · Typical
Matthew Rhames, MD - brand share 10.0%
Emergency Medical Services (Emergency Medicine) Physician average
10% brand-name claims vs 90% generic, on 165 2024 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 2024.
165
Total Claims
$3K
Total Drug Cost
130
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 183.4
- Total Day Supply
- 2,146
- Brand vs Generic
- 10% brand / 90% generic
- Brand Drug Cost
- $2K
- Generic Drug Cost
- $1K
- Opioid Claims
- 19 (11.5% rate)
- Antibiotic Claims
- 65
Patient Demographics
- Average Patient Age
- 73.6 years
- Avg HCC Risk Score
- 1.82
- Gender Split
- 60% female / 40% male
- Age Distribution
- <65: 24, 65-74: 41, 75-84: 40, 85+: 25
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Matthew Rhames, MD prescribes most
Top Medicare Part D drugs by claim count, 2024
- Cephalexin
Cephalexin
33 claims
- Oxycodone Hcl
Oxycodone Hcl
17 claims
- Methylprednisolone 12
Methylprednisolone
12 claims
| Drug | Claims |
|---|---|
| Cephalexin | 33 |
| Oxycodone Hcl | 17 |
| Methylprednisolone | 12 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Emergency Medical Services (Emergency Medicine) Physician in VA →
All providers in Virginia →
Compare specialties →
Emergency Medical Services (Emergency Medicine) Physician Overview
How Matthew Rhames, MD fits within the Emergency Medical Services (Emergency Medicine) Physician landscape nationally.
3,651
Emergency Medical Services (Emergency Medicine) Physician Providers in US
55
States with Emergency Medical Services (Emergency Medicine) Physician
430
Avg Claims per Provider
Matthew Rhames, MD's 165 claims are below the specialty average of 430.
Nationwide Emergency Medical Services (Emergency Medicine) Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Rhames, both outside Virginia so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2006)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Emergency Medical Services (Emergency Medicine) Physician Providers in Virginia
Other clinicians with the same primary specialty enrolled in Virginia, drawn from the same CMS NPPES roster as Rhames.
One of 96 Emergency Medical Services (Emergency Medicine) Physician providers enrolled in Virginia, 5 are shown here.
Frequently Asked Questions
What is Matthew Rhames, MD's specialty? ▼
Matthew Rhames, MD specializes in Emergency Medical Services (Emergency Medicine) Physician and practices in Warrenton, Virginia. Credentials: MD.
How much does Matthew Rhames, MD prescribe under Medicare Part D? ▼
In 2024, Matthew Rhames, MD wrote 165 Medicare Part D claims totaling $3K in drug costs for 130 beneficiaries.
Where is Matthew Rhames, MD located? ▼
Matthew Rhames, MD is located at 381 STUYVESANT ST STE 1, Warrenton, VA, 20186. Phone: (540) 347-4410.
What is Matthew Rhames, MD's NPI number? ▼
Matthew Rhames, MD's National Provider Identifier (NPI) is 1285648147, issued on 07/28/2006.
Does Matthew Rhames, MD prescribe more brand-name or generic drugs? ▼
Matthew Rhames, MD's prescribing is 10% brand-name and 90% generic drugs by claim count, with $2K in brand drug costs.
Does Matthew Rhames, MD prescribe opioids? ▼
Yes, Matthew Rhames, MD had 19 opioid claims in 2024 with an opioid prescribing rate of 11.5%.
How many Emergency Medical Services (Emergency Medicine) Physician providers are there in the US? ▼
There are 3,651 Emergency Medical Services (Emergency Medicine) Physician providers across 55 states in the US. The average Emergency Medical Services (Emergency Medicine) Physician provider writes 430 Medicare Part D claims per year.
What drugs does Matthew Rhames, MD prescribe most often? ▼
Based on 2024 Medicare Part D data, Matthew Rhames, MD's most frequently prescribed drugs include Cephalexin, Oxycodone Hcl, Methylprednisolone. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Matthew Rhames, MD accept Medicare? ▼
Matthew Rhames, MD appears in CMS Medicare data with 165 Part D claims and 130 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Matthew Rhames, MD's credentials? ▼
Matthew Rhames, MD's NPI is 1285648147 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 (2024). 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 August 2026 (NPPES) / 2024 (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
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 August 2026.