NPI registry status
Active
2026 NPPES data Physician Assistant NPI 1811904006 PA-C
Verify on CMS → Robert Trimarche, PA-C
Physician Assistant in Forest, 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 150,974 in Physician Assistant, 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
511
Medicare Part D claims · 55 beneficiaries · Physician Assistant avg: 790
Generic prescribing
88%
generic claims · 12% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$29.67
2 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Robert Trimarche, PA-C filed 511 Medicare Part D claims in 2023 as a Physician Assistant in Forest, Virginia, prescribing 88% generic.
- 511
- Part D claims, 2023
- 88%
- generic prescribing
- $29.67
- industry payments (Sunshine Act)
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.
Robert Trimarche, PA-C's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
511 Top 34% higher than 66% 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
What does the federal data show about Robert Trimarche, PA-C?
Quality data not reportedPrimary specialty
Physician Assistant
Medicare Part D claims
511 35% vs specialty avg
Specialty distribution in Virginia
How Physician Assistant 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 Physician Assistant. 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).
Robert Trimarche, PA-C appears in the CMS NPPES registry as a Physician Assistant provider holding PA-C credentials at 1019 VISTA PARK DR, Forest, VA, 24551, with a listed phone of (434) 200-9009. NPI 1811904006 was issued on 08/01/2006.
Medicare Part D records for calendar year 2023 show 511 prescription claims written by this provider, covering 55 Medicare beneficiaries and totaling roughly $99K in drug spend, split 12% brand-name and 88% generic by claim count.
Physician Assistant is a high-volume specialty nationwide, with 150,974 enrolled providers across 56 states and an average of 790 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 | 1811904006 |
|---|---|
| Specialty | Physician Assistant |
| Credentials | PA-C |
| Gender | Male |
| NPI Issued | 08/01/2006 |
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 Robert Trimarche, PA-C. Source: openpaymentsdata.cms.gov.
Total received
$30
Largest payer
ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.)
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
Robert Trimarche, PA-C - brand share 12.0%
Physician Assistant average
12% brand-name claims vs 88% generic, on 511 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.
511
Total Claims
$99K
Total Drug Cost
55
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 524
- Total Day Supply
- 12,197
- Brand vs Generic
- 12% brand / 88% generic
- Brand Drug Cost
- $68K
- Generic Drug Cost
- $31K
Patient Demographics
- Average Patient Age
- 52.2 years
- Avg HCC Risk Score
- 1.44
- Gender Split
- 56% female / 44% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Robert Trimarche, PA-C prescribes most
Top Medicare Part D drugs by claim count, 2023
- Buprenorphine-Nalo…
Buprenorphine-Naloxone
238 claims
- Mirtazapine 33
Mirtazapine
33 claims
- Buspirone Hcl 29
Buspirone Hcl
29 claims
- Suboxone 24
Suboxone
24 claims
- Gabapentin 20
Gabapentin
20 claims
- Naloxone Hcl 18
Naloxone Hcl
18 claims
- Vraylar 17
Vraylar
17 claims
- Zubsolv 11
Zubsolv
11 claims
| Drug | Claims |
|---|---|
| Buprenorphine-Naloxone Buprenorphine Hcl/Naloxone Hcl | 238 |
| Mirtazapine | 33 |
| Buspirone Hcl | 29 |
| Suboxone Buprenorphine Hcl/Naloxone Hcl | 24 |
| Gabapentin | 20 |
| Naloxone Hcl | 18 |
| Vraylar Cariprazine Hcl | 17 |
| Zubsolv Buprenorphine Hcl/Naloxone Hcl | 11 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Physician Assistant Overview
How Robert Trimarche, PA-C fits within the Physician Assistant landscape nationally.
150,974
Physician Assistant Providers in US
56
States with Physician Assistant
790
Avg Claims per Provider
Robert Trimarche, PA-C's 511 claims are below the specialty average of 790.
Nearby Physician Assistant Providers in Virginia
Other clinicians with the same primary specialty enrolled in Virginia, drawn from the same CMS NPPES roster as Trimarche.
Tehreem Abbas
Woodbridge, VA
Emma Abbott
Roanoke, VA
Dr. Annalyn Abcede
PA
Chesapeake, VA
Dr. Dalia Abdalla
PA-C
Aldie, VA
Dr. Hamdi Abdullahi
PA-C
Alexandria, VA
Compare Physician Assistant 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 Virginia medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Physician Assistant 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 Robert Trimarche, PA-C's specialty? ▼
Robert Trimarche, PA-C specializes in Physician Assistant and practices in Forest, Virginia. Credentials: PA-C.
How much does Robert Trimarche, PA-C prescribe under Medicare Part D? ▼
In 2023, Robert Trimarche, PA-C wrote 511 Medicare Part D claims totaling $99K in drug costs for 55 beneficiaries.
Where is Robert Trimarche, PA-C located? ▼
Robert Trimarche, PA-C is located at 1019 VISTA PARK DR, Forest, VA, 24551. Phone: (434) 200-9009.
What is Robert Trimarche, PA-C's NPI number? ▼
Robert Trimarche, PA-C's National Provider Identifier (NPI) is 1811904006, issued on 08/01/2006.
Does Robert Trimarche, PA-C prescribe more brand-name or generic drugs? ▼
Robert Trimarche, PA-C's prescribing is 12% brand-name and 88% generic drugs by claim count, with $68K in brand drug costs.
How many Physician Assistant providers are there in the US? ▼
There are 150,974 Physician Assistant providers across 56 states in the US. The average Physician Assistant provider writes 790 Medicare Part D claims per year.
What drugs does Robert Trimarche, PA-C prescribe most often? ▼
Based on 2023 Medicare Part D data, Robert Trimarche, PA-C's most frequently prescribed drugs include Buprenorphine-Naloxone, Mirtazapine, Buspirone Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Robert Trimarche, PA-C accept Medicare? ▼
Robert Trimarche, PA-C appears in CMS Medicare data with 511 Part D claims and 55 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Robert Trimarche, PA-C's credentials? ▼
Robert Trimarche, PA-C's NPI is 1811904006 with credentials PA-C. 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
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.