NPI registry status
Active
2026 NPPES data Registered Nurse First Assistant NPI 1497911739 RN
Verify on CMS → Dennis Castle, RN
Registered Nurse First Assistant in Nashville, Tennessee.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 2,714 in Registered Nurse First 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.
What the federal data shows
Dennis Castle, RN is a Registered Nurse First Assistant in Nashville, Tennessee, listed in the federal CMS National Provider Identifier registry.
- #188
- Registered Nurse First Assistant rank among Tennessee 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 Dennis Castle, RN
Bare NPI registry listing — limited federal enrichment beyond basic enumeration. Verify all credentials with official sources.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1497911739), first enumerated 08/06/2008.
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
- 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 1497911739 · Registered Nurse First Assistant
NPI-10 · ENUM-MID · TAX-NARROW · RX-NONE · BOOK-THIN · PHOTO-ENUM
- NPI-10 1497911739
- ENUM-MID 2008
- TAX-NARROW 2,714
- RX-NONE No Part D
- BOOK-THIN 36 in Tennessee
- PHOTO-ENUM Rosalie Romo, RNFA · 2008
What does the federal data show about Dennis Castle, RN?
Quality data not reportedPrimary specialty
Registered Nurse First Assistant
Specialty distribution in Tennessee
How Registered Nurse First Assistant compares to other specialties among Tennessee 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 Registered Nurse First 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).
Practice Address
Provider Details
| NPI | 1497911739 |
|---|---|
| Specialty | Registered Nurse First Assistant |
| Credentials | RN |
| Gender | Male |
| NPI Issued | 08/06/2008 |
Registered Nurse First Assistant Overview
How Dennis Castle, RN fits within the Registered Nurse First Assistant landscape nationally.
2,714
Registered Nurse First Assistant Providers in US
50
States with Registered Nurse First Assistant
369
Avg Claims per Provider
Nationwide Registered Nurse First Assistant peers with similar MIPS or enrollment year
Two federal-record peer sets for Castle, both outside Tennessee so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2008)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Registered Nurse First Assistant Providers in Tennessee
Other clinicians with the same primary specialty enrolled in Tennessee, drawn from the same CMS NPPES roster as Castle.
One of 36 Registered Nurse First Assistant providers enrolled in Tennessee, 5 are shown here.
Francisco Barranco
C.R.N.F.A.
Nashville, TN
Dr. Elizabeth Brown
DNP,RN,CNOR,CRNFA
Nashville, TN
Sean Bunch
Nashville, TN
Mary Burnett
CRNFA
Nashville, TN
Kenzie Carpenter
AGACNP,RNFA
Nashville, TN
Compare Registered Nurse First Assistant nationally: see state-by-state distribution →
Frequently Asked Questions
What is Dennis Castle, RN's specialty? ▼
Dennis Castle, RN specializes in Registered Nurse First Assistant and practices in Nashville, Tennessee. Credentials: RN.
Where is Dennis Castle, RN located? ▼
Dennis Castle, RN is located at 2011 CHURCH ST, Nashville, TN, 37203. Phone: (615) 515-4018.
What is Dennis Castle, RN's NPI number? ▼
Dennis Castle, RN's National Provider Identifier (NPI) is 1497911739, issued on 08/06/2008.
How many Registered Nurse First Assistant providers are there in the US? ▼
There are 2,714 Registered Nurse First Assistant providers across 50 states in the US. The average Registered Nurse First Assistant provider writes 369 Medicare Part D claims per year.
Does Dennis Castle, RN accept Medicare? ▼
Dennis Castle, RN appears in CMS Medicare data. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Dennis Castle, RN's credentials? ▼
Dennis Castle, RN's NPI is 1497911739 with credentials RN. 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.