NPI registry status
Active
2026 NPPES data Addiction Medicine (Internal Medicine) Physician NPI 1972535094 D.O.
Verify on CMS → James Johnson, D.O.
Addiction Medicine (Internal Medicine) Physician in Marion, Ohio.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 571 in Addiction 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
251
Medicare Part D claims · 80 beneficiaries · Addiction Medicine (Internal Medicine) Physician avg: 1K
What the federal data shows
James Johnson, D.O. filed 251 Medicare Part D claims in 2024 as an Addiction Medicine (Internal Medicine) Physician in Marion, Ohio.
- 251
- Part D claims, 2024
- ≥48th
- 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 James Johnson, D.O.
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 1972535094), first enumerated 07/07/2006.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 251 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.
- State context
State board disciplinary context
Ohio statewide board action statistics are published annually — these figures describe aggregate state activity, not James Johnson, D.O.'s individual license status. Verify directly with the state medical board.
Source: OMB annual report 2023
- 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.
Compare Johnson with other Addiction Medicine (Internal Medicine) Physician providers
Same primary specialty, same federal CMS NPPES roster.
Also enrolled in Ohio
- Dr. David Allen, M.D. Gahanna, OH
- Dr. Harithsa Asuri, M.D. Ashtabula, OH
- Dr. Cynthia Brown, MD Cleveland, OH
- Dr. Clifford Cabansag, MD Middletown, OH
- Dr. Christ-Roi Cheres, M.D. Chardon, OH
- Dr. Jeffrey Craven, M.D. Cincinnati, OH
Other specialties in Marion: Addiction (Substance Use Disorder) Counselor (137) · Case Manager/Care Coordinator (83) · Mental Health Counselor (69) · Licensed Practical Nurse (67)
CMS NPPES provider registry desk
NPI 1972535094 · Addiction Medicine (Internal Medicine) Physician
NPI-10 · ENUM-LEGACY · TAX-NARROW · RX-LIGHT · BOOK-THIN · PHOTO-ENUM
- NPI-10 1972535094
- ENUM-LEGACY 2006
- TAX-NARROW 571
- RX-LIGHT 251
- BOOK-THIN 37 in Ohio
- PHOTO-ENUM Richard Merrick, MD · 2006
James Johnson, D.O.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
251 ≥ 48th percentile 48% 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)
James Johnson, D.O. 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 James Johnson, D.O.?
Quality data not reportedPrimary specialty
Addiction Medicine (Internal Medicine) Physician
Medicare Part D claims
251 83% vs specialty avg
Specialty distribution in Ohio
How Addiction Medicine (Internal Medicine) Physician compares to other specialties among Ohio 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 Addiction 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 | 1972535094 |
|---|---|
| Specialty | Addiction Medicine (Internal Medicine) Physician |
| Credentials | D.O. |
| Gender | Male |
| NPI Issued | 07/07/2006 |
License & disciplinary context - Ohio OMB 2023 annual report
Aggregate state board data only, NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~48K Ohio medical licensees in 2023 - they are NOT specific to James Johnson, D.O.. To verify James Johnson, D.O.'s current license status, search the OMB public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
158
Total board actions, Ohio 2023
Across 154 cases
3.29
Actions per 1,000 licensees
Ohio statewide rate
probation
Most common action type
56 cases
OMB publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Ohio disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2024.
251
Total Claims
$27K
Total Drug Cost
80
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 257
- Total Day Supply
- 5,275
- Generic Drug Cost
- $14K
- Antibiotic Claims
- 28
Patient Demographics
- Average Patient Age
- 67.4 years
- Avg HCC Risk Score
- 2.20
- Gender Split
- 54% female / 46% male
- Age Distribution
- <65: 38, 65-74: 16, 75-84: 12, 85+: 14
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What James Johnson, D.O. prescribes most
Top Medicare Part D drugs by claim count, 2024
- Buprenorphine-Nalo…
Buprenorphine-Naloxone
68 claims
- Suboxone 18
Suboxone
18 claims
- Lansoprazole 12
Lansoprazole
12 claims
- Montelukast Sodium 12
Montelukast Sodium
12 claims
| Drug | Claims |
|---|---|
| Buprenorphine-Naloxone Buprenorphine Hcl/Naloxone Hcl | 68 |
| Suboxone Buprenorphine Hcl/Naloxone Hcl | 18 |
| Lansoprazole | 12 |
| Montelukast Sodium | 12 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Addiction Medicine (Internal Medicine) Physician in OH →
All providers in Ohio →
Compare specialties →
Addiction Medicine (Internal Medicine) Physician Overview
How James Johnson, D.O. fits within the Addiction Medicine (Internal Medicine) Physician landscape nationally.
571
Addiction Medicine (Internal Medicine) Physician Providers in US
46
States with Addiction Medicine (Internal Medicine) Physician
1,455
Avg Claims per Provider
James Johnson, D.O.'s 251 claims are below the specialty average of 1,455.
Nationwide Addiction Medicine (Internal Medicine) Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Johnson, both outside Ohio so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2006)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Addiction Medicine (Internal Medicine) Physician Providers in Ohio
Other clinicians with the same primary specialty enrolled in Ohio, drawn from the same CMS NPPES roster as Johnson.
One of 37 Addiction Medicine (Internal Medicine) Physician providers enrolled in Ohio, 11 are shown on this page.
Frequently Asked Questions
What is James Johnson, D.O.'s specialty? ▼
James Johnson, D.O. specializes in Addiction Medicine (Internal Medicine) Physician and practices in Marion, Ohio. Credentials: D.O..
How much does James Johnson, D.O. prescribe under Medicare Part D? ▼
In 2024, James Johnson, D.O. wrote 251 Medicare Part D claims totaling $27K in drug costs for 80 beneficiaries.
Where is James Johnson, D.O. located? ▼
James Johnson, D.O. is located at 560 N MAIN ST, Marion, OH, 43302. Phone: (833) 510-4357.
What is James Johnson, D.O.'s NPI number? ▼
James Johnson, D.O.'s National Provider Identifier (NPI) is 1972535094, issued on 07/07/2006.
How many Addiction Medicine (Internal Medicine) Physician providers are there in the US? ▼
There are 571 Addiction Medicine (Internal Medicine) Physician providers across 46 states in the US. The average Addiction Medicine (Internal Medicine) Physician provider writes 1,455 Medicare Part D claims per year.
What drugs does James Johnson, D.O. prescribe most often? ▼
Based on 2024 Medicare Part D data, James Johnson, D.O.'s most frequently prescribed drugs include Buprenorphine-Naloxone, Suboxone, Lansoprazole. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does James Johnson, D.O. accept Medicare? ▼
James Johnson, D.O. appears in CMS Medicare data with 251 Part D claims and 80 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify James Johnson, D.O.'s credentials? ▼
James Johnson, D.O.'s NPI is 1972535094 with credentials D.O.. 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.