NPI registry status
Active
2026 NPPES data General Practice Registered Nurse NPI 1861849457 FNP-BC
Verify on CMS → Thomas Groff, FNP-BC
General Practice Registered Nurse in Reston, 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 5,757 in General Practice Registered Nurse, 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.
Industry payments
$32.07
2 payments · CMS Open Payments (Sunshine Act)
What the federal data shows
Thomas Groff, FNP-BC is a General Practice Registered Nurse in Reston, Virginia, listed in the federal CMS National Provider Identifier registry.
- $32.07
- industry payments (Sunshine Act)
- #138
- General Practice Registered Nurse rank among Virginia specialties
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 Thomas Groff, FNP-BC
Active federal NPI registry listing — verify license, disciplinary history, and board certification with official sources before relying on this profile.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1861849457), first enumerated 05/24/2016.
Source: CMS NPPES
- Not in federal data
Medicare Part D participation
No 2023 Medicare Part D prescribing volume appears in the CMS public file for this NPI (may reflect specialty, new enrollment, or non-prescribing role).
Source: CMS Part D Prescriber PUF
- Reported
Hospital affiliations
1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- Reported
Industry payment transparency
$32.07 in reported industry payments (2 transfers) in 2024 under the federal Sunshine Act — disclosed transfers of value, not a quality rating.
Source: CMS Open Payments
- 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 1861849457 · General Practice Registered Nurse
NPI-10 · ENUM-MID · TAX-MID · RX-NONE · BOOK-THIN · PHOTO-ENUM
- NPI-10 1861849457
- ENUM-MID 2016
- TAX-MID 6K General Practice
- RX-NONE No Part D
- BOOK-THIN 87 in Virginia
- PHOTO-ENUM Donna Armer, RN · 2016
What does the federal data show about Thomas Groff, FNP-BC?
Quality data not reportedPrimary specialty
General Practice Registered Nurse
Specialty distribution in Virginia
How General Practice Registered Nurse 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 General Practice Registered Nurse. 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 | 1861849457 |
|---|---|
| Specialty | General Practice Registered Nurse |
| Credentials | FNP-BC |
| Gender | Male |
| NPI Issued | 05/24/2016 |
Hospital and facility affiliations
Facilities where Thomas Groff, FNP-BC 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.
Columbia Associates IN Psychiatry PC
Reston, VA
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 Thomas Groff, FNP-BC. Source: openpaymentsdata.cms.gov.
Total received
$32
Largest payer
Axsome Therapeutics, 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.
General Practice Registered Nurse Overview
How Thomas Groff, FNP-BC fits within the General Practice Registered Nurse landscape nationally.
5,757
General Practice Registered Nurse Providers in US
55
States with General Practice Registered Nurse
1,350
Avg Claims per Provider
Nationwide General Practice Registered Nurse peers with similar MIPS or enrollment year
Two federal-record peer sets for Groff, both outside Virginia so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2016)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby General Practice Registered Nurse Providers in Virginia
Other clinicians with the same primary specialty enrolled in Virginia, drawn from the same CMS NPPES roster as Groff.
One of 87 General Practice Registered Nurse providers enrolled in Virginia, 5 are shown here.
Safo Adu-Gyamfi
Hampton, VA
Denise Akers
AGNP
Fredericksburg, VA
Sophia Antwi
Fairfax, VA
Carole Armentrout
RN,BSN
Richmond, VA
Amanda Avenoso
RN
Herndon, VA
Compare General Practice Registered Nurse nationally: see state-by-state distribution →
Frequently Asked Questions
What is Thomas Groff, FNP-BC's specialty? ▼
Thomas Groff, FNP-BC specializes in General Practice Registered Nurse and practices in Reston, Virginia. Credentials: FNP-BC.
Where is Thomas Groff, FNP-BC located? ▼
Thomas Groff, FNP-BC is located at 12007 SUNRISE VALLEY DR STE 120, Reston, VA, 20191. Phone: (703) 522-2089.
What is Thomas Groff, FNP-BC's NPI number? ▼
Thomas Groff, FNP-BC's National Provider Identifier (NPI) is 1861849457, issued on 05/24/2016.
How many General Practice Registered Nurse providers are there in the US? ▼
There are 5,757 General Practice Registered Nurse providers across 55 states in the US. The average General Practice Registered Nurse provider writes 1,350 Medicare Part D claims per year.
Does Thomas Groff, FNP-BC accept Medicare? ▼
Thomas Groff, FNP-BC appears in CMS Medicare data. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Thomas Groff, FNP-BC's credentials? ▼
Thomas Groff, FNP-BC's NPI is 1861849457 with credentials FNP-BC. 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.
- 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.