NPI registry status
Active
2026 NPPES data Legal Medicine (M.D./D.O.) Physician NPI 1871983221 DO
Verify on CMS → Grant Miller, DO
Legal Medicine (M.D./D.O.) Physician in Portsmouth, 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 54 in Legal Medicine (M.D./D.O.) 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.
What the federal data shows
Grant Miller, DO is a Legal Medicine (M.D./D.O.) Physician in Portsmouth, Virginia, listed in the federal CMS National Provider Identifier registry.
- #427
- Legal Medicine (M.D./D.O.) Physician 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 Grant Miller, DO
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 1871983221), first enumerated 01/23/2015.
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
- 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 1871983221 · Legal Medicine (M.D./D.O.) Physician
NPI-10 · ENUM-MID · TAX-TRACE · RX-NONE · BOOK-THIN · PHOTO-ENUM
- NPI-10 1871983221
- ENUM-MID 2015
- TAX-TRACE 54
- RX-NONE No Part D
- BOOK-THIN 4 in Virginia
- PHOTO-ENUM Leslie Doran · 2015
What does the federal data show about Grant Miller, DO?
Quality data not reportedPrimary specialty
Legal Medicine (M.D./D.O.) Physician
Specialty distribution in Virginia
How Legal Medicine (M.D./D.O.) 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 Legal Medicine (M.D./D.O.) 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 | 1871983221 |
|---|---|
| Specialty | Legal Medicine (M.D./D.O.) Physician |
| Credentials | DO |
| Gender | Male |
| NPI Issued | 01/23/2015 |
Hospital and facility affiliations
Facilities where Grant Miller, DO 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.
American Anesthesiology OF Virginia PC
Newport News, 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).
Legal Medicine (M.D./D.O.) Physician Overview
How Grant Miller, DO fits within the Legal Medicine (M.D./D.O.) Physician landscape nationally.
54
Legal Medicine (M.D./D.O.) Physician Providers in US
26
States with Legal Medicine (M.D./D.O.) Physician
332
Avg Claims per Provider
Nationwide Legal Medicine (M.D./D.O.) Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Miller, both outside Virginia so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2015)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Legal Medicine (M.D./D.O.) Physician Providers in Virginia
Other clinicians with the same primary specialty enrolled in Virginia, drawn from the same CMS NPPES roster as Miller.
One of 4 Legal Medicine (M.D./D.O.) Physician providers enrolled in Virginia, 3 are shown here.
Compare Legal Medicine (M.D./D.O.) Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Grant Miller, DO's specialty? ▼
Grant Miller, DO specializes in Legal Medicine (M.D./D.O.) Physician and practices in Portsmouth, Virginia. Credentials: DO.
Where is Grant Miller, DO located? ▼
Grant Miller, DO is located at 620 JOHN PAUL JONES CIR, Portsmouth, VA, 23708. Phone: (757) 953-0669.
What is Grant Miller, DO's NPI number? ▼
Grant Miller, DO's National Provider Identifier (NPI) is 1871983221, issued on 01/23/2015.
How many Legal Medicine (M.D./D.O.) Physician providers are there in the US? ▼
There are 54 Legal Medicine (M.D./D.O.) Physician providers across 26 states in the US. The average Legal Medicine (M.D./D.O.) Physician provider writes 332 Medicare Part D claims per year.
Does Grant Miller, DO accept Medicare? ▼
Grant Miller, DO appears in CMS Medicare data. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Grant Miller, DO's credentials? ▼
Grant Miller, DO's NPI is 1871983221 with credentials DO. 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.