NPI registry status
Active
2026 NPPES data Surgery Physician NPI 1346282605 M.D.
Verify on CMS → James Jansen, M.D.
Surgery Physician in Washington, Missouri.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 36,199 in Surgery 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
112
Medicare Part D claims · 58 beneficiaries · Surgery Physician avg: 169
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
James Jansen, M.D. filed 112 Medicare Part D claims in 2023 as a Surgery Physician in Washington, Missouri.
- 112
- Part D claims, 2023
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.
James Jansen, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
112 35th percentile higher than 35% 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-eligible specialty (heuristic, not verified)
James Jansen, 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 James Jansen, M.D.?
Quality data not reportedPrimary specialty
Surgery Physician
Medicare Part D claims
112 34% vs specialty avg
Specialty distribution in Missouri
How Surgery Physician compares to other specialties among Missouri 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 Surgery 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).
James Jansen, M.D. appears in the CMS NPPES registry as a Surgery Physician provider holding M.D. credentials at 901 PATIENTS FIRST DR, Washington, MO, 63090, with a listed phone of (636) 239-2711. NPI 1346282605 was issued on 06/12/2006.
Medicare Part D records for calendar year 2023 show 112 prescription claims written by this provider, covering 58 Medicare beneficiaries and totaling roughly $12K in drug spend, with an opioid prescribing rate of 50.0%.
Surgery Physician is a mid-sized specialty nationwide, with 36,199 enrolled providers across 56 states and an average of 169 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 | 1346282605 |
|---|---|
| Specialty | Surgery Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 06/12/2006 |
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
112
Total Claims
$12K
Total Drug Cost
58
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 125
- Total Day Supply
- 1,713
- Generic Drug Cost
- $2K
- Opioid Claims
- 56 (50.0% rate)
- Antibiotic Claims
- 28
Patient Demographics
- Average Patient Age
- 71.5 years
- Avg HCC Risk Score
- 2.33
- Gender Split
- 57% female / 43% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
| Drug | Claims |
|---|---|
| Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen | 41 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Surgery Physician Overview
How James Jansen, M.D. fits within the Surgery Physician landscape nationally.
36,199
Surgery Physician Providers in US
56
States with Surgery Physician
169
Avg Claims per Provider
James Jansen, M.D.'s 112 claims are below the specialty average of 169.
Nearby Surgery Physician Providers in Missouri
Other clinicians with the same primary specialty enrolled in Missouri, drawn from the same CMS NPPES roster as Jansen.
Dr. Tsehay Abebe
MD
Saint Louis, MO
Dr. John Adams
M.D.
Columbia, MO
Dr. Pablo Aguayo
MD
Kansas City, MO
Dr. Pauline Aherrera
MD
Columbia, MO
Dr. Ola Ahmed
MD
St Louis, MO
Compare Surgery 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 Missouri medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Surgery 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.
Healthcare Guides
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How to Find a Doctor
Step-by-step guide to choosing a provider
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Check NPI, board certification & license status
Medical Specialties Explained
Who treats what and how specialties differ
Understanding Medicare Claims Data
What prescribing data reveals about a provider
In-Network vs Out-of-Network
How insurance networks affect your costs
Telehealth Guide
Virtual care options and coverage in 2026
Explore Missouri
Frequently Asked Questions
What is James Jansen, M.D.'s specialty? ▼
James Jansen, M.D. specializes in Surgery Physician and practices in Washington, Missouri. Credentials: M.D..
How much does James Jansen, M.D. prescribe under Medicare Part D? ▼
In 2023, James Jansen, M.D. wrote 112 Medicare Part D claims totaling $12K in drug costs for 58 beneficiaries.
Where is James Jansen, M.D. located? ▼
James Jansen, M.D. is located at 901 PATIENTS FIRST DR, Washington, MO, 63090. Phone: (636) 239-2711.
What is James Jansen, M.D.'s NPI number? ▼
James Jansen, M.D.'s National Provider Identifier (NPI) is 1346282605, issued on 06/12/2006.
Does James Jansen, M.D. prescribe opioids? ▼
Yes, James Jansen, M.D. had 56 opioid claims in 2023 with an opioid prescribing rate of 50.0%.
How many Surgery Physician providers are there in the US? ▼
There are 36,199 Surgery Physician providers across 56 states in the US. The average Surgery Physician provider writes 169 Medicare Part D claims per year.
What drugs does James Jansen, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, James Jansen, M.D.'s most frequently prescribed drugs include Hydrocodone-Acetaminophen. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does James Jansen, M.D. accept Medicare? ▼
James Jansen, M.D. appears in CMS Medicare data with 112 Part D claims and 58 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify James Jansen, M.D.'s credentials? ▼
James Jansen, M.D.'s NPI is 1346282605 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 (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.
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 May 2026.