NPI registry status
Active
2026 NPPES data Adult Medicine Physician NPI 1912983768 DO
Verify on CMS → Paul Johnstone, DO
Adult Medicine Physician in Virginia Beach, 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 2,481 in Adult 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
3K
Medicare Part D claims · 337 beneficiaries · Adult Medicine Physician avg: 3K
Generic prescribing
85%
generic claims · 14% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Paul Johnstone, DO filed 3,118 Medicare Part D claims in 2023 as a Adult Medicine Physician in Virginia Beach, Virginia, prescribing 85% generic.
- 3K
- Part D claims, 2023
- 85%
- generic prescribing
- Likely
- board-certified (heuristic)
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.
Paul Johnstone, DO's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
3,118 Top 11% higher than 89% 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
✓
Board certification likely (heuristic, not verified)
Paul Johnstone, DO practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation - signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Paul Johnstone, DO?
Quality data not reportedPrimary specialty
Adult Medicine Physician
Medicare Part D claims
3,118 11% vs specialty avg
Specialty distribution in Virginia
How Adult 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 Adult 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).
Paul Johnstone, DO appears in the CMS NPPES registry as a Adult Medicine Physician provider holding DO credentials at 5516 VIRGINIA BEACH BLVD, Virginia Beach, VA, 23462, with a listed phone of (757) 473-3969. NPI 1912983768 was issued on 12/22/2005.
Medicare Part D records for calendar year 2023 show 3,118 prescription claims written by this provider, covering 337 Medicare beneficiaries and totaling roughly $202K in drug spend, split 14% brand-name and 85% generic by claim count, with an opioid prescribing rate of 2.1%.
Adult Medicine Physician is a narrow specialty nationwide, with 2,481 enrolled providers across 52 states and an average of 2,807 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 | 1912983768 |
|---|---|
| Specialty | Adult Medicine Physician |
| Credentials | DO |
| Gender | Male |
| NPI Issued | 12/22/2005 |
Hospital and facility affiliations
Facilities where Paul Johnstone, 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.
M Medical Group, Inc.
Chesapeake, 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).
Brand vs generic prescribing mix · Typical
Paul Johnstone, DO - brand share 14.0%
Adult Medicine Physician average
14% brand-name claims vs 85% generic, on 3,118 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.
3,118
Total Claims
$202K
Total Drug Cost
337
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 3,857
- Total Day Supply
- 88,055
- Brand vs Generic
- 14% brand / 85% generic
- Brand Drug Cost
- $140K
- Generic Drug Cost
- $62K
- Opioid Claims
- 67 (2.1% rate)
- Antibiotic Claims
- 143
Patient Demographics
- Average Patient Age
- 75.0 years
- Avg HCC Risk Score
- 2.14
- Gender Split
- 64% female / 36% male
- Age Distribution
- <65: 38, 65-74: 138, 75-84: 93, 85+: 68
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Paul Johnstone, DO prescribes most
Top Medicare Part D drugs by claim count, 2023
- Amlodipine Besylate
Amlodipine Besylate
140 claims
- Furosemide
Furosemide
99 claims
- Eliquis
Eliquis
93 claims
- Atorvastatin Calcium
Atorvastatin Calcium
80 claims
- Levothyroxine Sodium
Levothyroxine Sodium
78 claims
- Losartan Potassium
Losartan Potassium
74 claims
- Trazodone Hcl
Trazodone Hcl
64 claims
- Metoprolol Succinate
Metoprolol Succinate
63 claims
| Drug | Claims |
|---|---|
| Amlodipine Besylate | 140 |
| Furosemide | 99 |
| Eliquis Apixaban | 93 |
| Atorvastatin Calcium | 80 |
| Levothyroxine Sodium | 78 |
| Losartan Potassium | 74 |
| Trazodone Hcl | 64 |
| Metoprolol Succinate | 63 |
| Sertraline Hcl | 63 |
| Warfarin Sodium | 61 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Adult Medicine Physician Overview
How Paul Johnstone, DO fits within the Adult Medicine Physician landscape nationally.
2,481
Adult Medicine Physician Providers in US
52
States with Adult Medicine Physician
2,807
Avg Claims per Provider
Paul Johnstone, DO's 3,118 claims are above the specialty average of 2,807.
Nearby Adult Medicine Physician Providers in Virginia
Other clinicians with the same primary specialty enrolled in Virginia, drawn from the same CMS NPPES roster as Johnstone.
Dr. Victor Adaniel
MD
Farmville, VA
Zainab Ahmadi
Chantilly, VA
Dr. Richard Alderfer
MD
Waynesboro, VA
Dr. James Alexander
M.D.
Hampton, VA
Dr. Mariam Alimi
NP
Fairfax, VA
Compare Adult Medicine Physician 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 Adult Medicine Physician 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 Paul Johnstone, DO's specialty? ▼
Paul Johnstone, DO specializes in Adult Medicine Physician and practices in Virginia Beach, Virginia. Credentials: DO.
How much does Paul Johnstone, DO prescribe under Medicare Part D? ▼
In 2023, Paul Johnstone, DO wrote 3,118 Medicare Part D claims totaling $202K in drug costs for 337 beneficiaries.
Where is Paul Johnstone, DO located? ▼
Paul Johnstone, DO is located at 5516 VIRGINIA BEACH BLVD, Virginia Beach, VA, 23462. Phone: (757) 473-3969.
What is Paul Johnstone, DO's NPI number? ▼
Paul Johnstone, DO's National Provider Identifier (NPI) is 1912983768, issued on 12/22/2005.
Does Paul Johnstone, DO prescribe more brand-name or generic drugs? ▼
Paul Johnstone, DO's prescribing is 14% brand-name and 85% generic drugs by claim count, with $140K in brand drug costs.
Does Paul Johnstone, DO prescribe opioids? ▼
Yes, Paul Johnstone, DO had 67 opioid claims in 2023 with an opioid prescribing rate of 2.1%.
How many Adult Medicine Physician providers are there in the US? ▼
There are 2,481 Adult Medicine Physician providers across 52 states in the US. The average Adult Medicine Physician provider writes 2,807 Medicare Part D claims per year.
What drugs does Paul Johnstone, DO prescribe most often? ▼
Based on 2023 Medicare Part D data, Paul Johnstone, DO's most frequently prescribed drugs include Amlodipine Besylate, Furosemide, Eliquis. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Paul Johnstone, DO accept Medicare? ▼
Paul Johnstone, DO appears in CMS Medicare data with 3,118 Part D claims and 337 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Paul Johnstone, DO's credentials? ▼
Paul Johnstone, DO's NPI is 1912983768 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.
- 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
Compiled from official public sources by the PlainDoctor editorial team.