NPI registry status
Active
2026 NPPES data Student in an Organized Health Care Education/Training Program NPI 1386332682 MD
Verify on CMS → Nathaniel Clennan, MD
Student in an Organized Health Care Education/Training Program in Salina, Kansas.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 331,274 in Student in an Organized Health Care Education/Training Program, 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
257
Medicare Part D claims · 53 beneficiaries · Student in an Organized Health Care Education/Training Program avg: 459
Generic prescribing
86%
generic claims · 14% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Nathaniel Clennan, MD filed 257 Medicare Part D claims in 2023 as a Student in an Organized Health Care Education/Training Program in Salina, Kansas, prescribing 86% generic.
- 257
- Part D claims, 2023
- 86%
- generic prescribing
- ≥49th
- 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.
Nathaniel Clennan, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
257 ≥ 49th percentile 49% of 1,370,886 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 · 2023
What does the federal data show about Nathaniel Clennan, MD?
Quality data not reportedPrimary specialty
Student in an Organized Health Care Education/Training Program
Medicare Part D claims
257 44% vs specialty avg
Specialty distribution in Kansas
How Student in an Organized Health Care Education/Training Program compares to other specialties among Kansas 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 Student in an Organized Health Care Education/Training Program. 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).
Nathaniel Clennan, MD appears in the CMS NPPES registry as a Student in an Organized Health Care Education/Training Program provider holding MD credentials at 651 E PRESCOTT RD, Salina, KS, 67401, with a listed phone of (785) 825-7251. NPI 1386332682 was issued on 04/26/2023.
Medicare Part D records for calendar year 2023 show 257 prescription claims written by this provider, covering 53 Medicare beneficiaries and totaling roughly $27K in drug spend, split 14% brand-name and 86% generic by claim count, with an opioid prescribing rate of 4.7%.
Student in an Organized Health Care Education/Training Program is a high-volume specialty nationwide, with 331,274 enrolled providers across 55 states and an average of 459 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 | 1386332682 |
|---|---|
| Specialty | Student in an Organized Health Care Education/Training Program |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 04/26/2023 |
Brand vs generic prescribing mix · Typical
Nathaniel Clennan, MD - brand share 14.0%
Student in an Organized Health Care Education/Training Program average
14% brand-name claims vs 86% generic, on 257 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.
257
Total Claims
$27K
Total Drug Cost
53
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 397
- Total Day Supply
- 10,804
- Brand vs Generic
- 14% brand / 86% generic
- Brand Drug Cost
- $22K
- Generic Drug Cost
- $5K
- Opioid Claims
- 12 (4.7% rate)
- Antibiotic Claims
- 13
Patient Demographics
- Average Patient Age
- 64.6 years
- Avg HCC Risk Score
- 1.66
- Gender Split
- 64% female / 36% male
- Age Distribution
- <65: 26, 65-74: 18, 75-84: N/A, 85+: N/A
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
| Drug | Claims |
|---|---|
| Losartan Potassium | 17 |
| Duloxetine Hcl | 11 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Student in an Organized Health Care Education/Training Program in KS →
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Student in an Organized Health Care Education/Training Program Overview
How Nathaniel Clennan, MD fits within the Student in an Organized Health Care Education/Training Program landscape nationally.
331,274
Student in an Organized Health Care Education/Training Program Providers in US
55
States with Student in an Organized Health Care Education/Training Program
459
Avg Claims per Provider
Nathaniel Clennan, MD's 257 claims are below the specialty average of 459.
Nearby Student in an Organized Health Care Education/Training Program Providers in Kansas
Other clinicians with the same primary specialty enrolled in Kansas, drawn from the same CMS NPPES roster as Clennan.
One of 1,244 Student in an Organized Health Care Education/Training Program providers enrolled in Kansas, 5 are shown here.
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 Kansas medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Student in an Organized Health Care Education/Training Program 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 Nathaniel Clennan, MD's specialty? ▼
Nathaniel Clennan, MD specializes in Student in an Organized Health Care Education/Training Program and practices in Salina, Kansas. Credentials: MD.
How much does Nathaniel Clennan, MD prescribe under Medicare Part D? ▼
In 2023, Nathaniel Clennan, MD wrote 257 Medicare Part D claims totaling $27K in drug costs for 53 beneficiaries.
Where is Nathaniel Clennan, MD located? ▼
Nathaniel Clennan, MD is located at 651 E PRESCOTT RD, Salina, KS, 67401. Phone: (785) 825-7251.
What is Nathaniel Clennan, MD's NPI number? ▼
Nathaniel Clennan, MD's National Provider Identifier (NPI) is 1386332682, issued on 04/26/2023.
Does Nathaniel Clennan, MD prescribe more brand-name or generic drugs? ▼
Nathaniel Clennan, MD's prescribing is 14% brand-name and 86% generic drugs by claim count, with $22K in brand drug costs.
Does Nathaniel Clennan, MD prescribe opioids? ▼
Yes, Nathaniel Clennan, MD had 12 opioid claims in 2023 with an opioid prescribing rate of 4.7%.
How many Student in an Organized Health Care Education/Training Program providers are there in the US? ▼
There are 331,274 Student in an Organized Health Care Education/Training Program providers across 55 states in the US. The average Student in an Organized Health Care Education/Training Program provider writes 459 Medicare Part D claims per year.
What drugs does Nathaniel Clennan, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Nathaniel Clennan, MD's most frequently prescribed drugs include Losartan Potassium, Duloxetine Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Nathaniel Clennan, MD accept Medicare? ▼
Nathaniel Clennan, MD appears in CMS Medicare data with 257 Part D claims and 53 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Nathaniel Clennan, MD's credentials? ▼
Nathaniel Clennan, MD's NPI is 1386332682 with credentials MD. 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
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.