NPI registry status
Active
2026 NPPES data Obesity Medicine (Internal Medicine) Physician NPI 1831430768 M.D.
Verify on CMS → Ronald Johnson, M.D.
Obesity Medicine (Internal Medicine) Physician in Fredericksburg, 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 in Obesity Medicine (Internal 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
11
Medicare Part D claims · Obesity Medicine (Internal Medicine) Physician avg: 1K
Industry payments
$116.4
1 payments · CMS Open Payments (Sunshine Act)
What the federal data shows
Ronald Johnson, M.D. filed 11 Medicare Part D claims in 2024 as an Obesity Medicine (Internal Medicine) Physician in Fredericksburg, Virginia.
- 11
- Part D claims, 2024
- $116.4
- industry payments (Sunshine Act)
- ≥0th
- 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 Ronald Johnson, M.D.
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 1831430768), first enumerated 03/01/2013.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 11 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.
- Reported
Industry payment transparency
$116.4 in reported industry payments (1 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 1831430768 · Obesity Medicine (Internal Medicine) Physician
NPI-10 · ENUM-MID · TAX-TRACE · RX-TRACE · BOOK-THIN · PHOTO-ENUM
- NPI-10 1831430768
- ENUM-MID 2013
- TAX-TRACE 150
- RX-TRACE 11
- BOOK-THIN 2 in Virginia
- PHOTO-ENUM Taher Modarressi · 2013
Ronald Johnson, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
11 ≥ 0th percentile 0% 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)
Ronald Johnson, M.D. 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 Ronald Johnson, M.D.?
Quality data not reportedPrimary specialty
Obesity Medicine (Internal Medicine) Physician
Medicare Part D claims
11 99% vs specialty avg
Specialty distribution in Virginia
How Obesity Medicine (Internal 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 Obesity Medicine (Internal 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 | 1831430768 |
|---|---|
| Specialty | Obesity Medicine (Internal Medicine) Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 03/01/2013 |
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 Ronald Johnson, M.D.. Source: openpaymentsdata.cms.gov.
Total received
$116
Largest payer
GlaxoSmithKline, LLC.
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.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2024.
11
Total Claims
$225
Total Drug Cost
N/A
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 22
- Total Day Supply
- 630
Patient Demographics
- Average Patient Age
- 69.7 years
- Avg HCC Risk Score
- 0.37
More Obesity Medicine (Internal Medicine) Physician in VA →
All providers in Virginia →
Compare specialties →
Obesity Medicine (Internal Medicine) Physician Overview
How Ronald Johnson, M.D. fits within the Obesity Medicine (Internal Medicine) Physician landscape nationally.
150
Obesity Medicine (Internal Medicine) Physician Providers in US
38
States with Obesity Medicine (Internal Medicine) Physician
1,026
Avg Claims per Provider
Ronald Johnson, M.D.'s 11 claims are below the specialty average of 1,026.
Nationwide Obesity Medicine (Internal Medicine) Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Johnson, both outside Virginia so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2013)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Obesity Medicine (Internal Medicine) Physician Providers in Virginia
Other clinicians with the same primary specialty enrolled in Virginia, drawn from the same CMS NPPES roster as Johnson.
Compare Obesity Medicine (Internal Medicine) Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Ronald Johnson, M.D.'s specialty? ▼
Ronald Johnson, M.D. specializes in Obesity Medicine (Internal Medicine) Physician and practices in Fredericksburg, Virginia. Credentials: M.D..
How much does Ronald Johnson, M.D. prescribe under Medicare Part D? ▼
In 2024, Ronald Johnson, M.D. wrote 11 Medicare Part D claims totaling $225 in drug costs for N/A beneficiaries.
Where is Ronald Johnson, M.D. located? ▼
Ronald Johnson, M.D. is located at 411 PARK HILL DR, Fredericksburg, VA, 22401. Phone: (540) 372-6811.
What is Ronald Johnson, M.D.'s NPI number? ▼
Ronald Johnson, M.D.'s National Provider Identifier (NPI) is 1831430768, issued on 03/01/2013.
How many Obesity Medicine (Internal Medicine) Physician providers are there in the US? ▼
There are 150 Obesity Medicine (Internal Medicine) Physician providers across 38 states in the US. The average Obesity Medicine (Internal Medicine) Physician provider writes 1,026 Medicare Part D claims per year.
Does Ronald Johnson, M.D. accept Medicare? ▼
Ronald Johnson, M.D. appears in CMS Medicare data with 11 Part D claims and N/A Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Ronald Johnson, M.D.'s credentials? ▼
Ronald Johnson, M.D.'s NPI is 1831430768 with credentials M.D.. 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.