NPI registry status
Active
2026 NPPES data Endocrinology, Diabetes & Metabolism Physician NPI 1649626037 D.O.
Verify on CMS → Natalie Kappus, D.O.
Endocrinology, Diabetes & Metabolism Physician in Sioux Falls, South Dakota.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 7,871 in Endocrinology, Diabetes & Metabolism 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
51
Medicare Part D claims · 15 beneficiaries · Endocrinology, Diabetes & Metabolism Physician avg: 3K
Generic prescribing
0%
generic claims · 59% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$49.54
1 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Natalie Kappus, D.O. filed 51 Medicare Part D claims in 2023 as an Endocrinology, Diabetes & Metabolism Physician in Sioux Falls, South Dakota, prescribing 0% generic.
- 51
- Part D claims, 2023
- 0%
- generic prescribing
- $49.54
- industry payments (Sunshine Act)
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.
Natalie Kappus, D.O.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
51 0th percentile higher than 0% 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)
Natalie Kappus, 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 Natalie Kappus, D.O.?
Quality data not reportedPrimary specialty
Endocrinology, Diabetes & Metabolism Physician
Medicare Part D claims
51 98% vs specialty avg
Specialty distribution in South Dakota
How Endocrinology, Diabetes & Metabolism Physician compares to other specialties among South Dakota 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 Endocrinology, Diabetes & Metabolism 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).
Natalie Kappus, D.O. appears in the CMS NPPES registry as an Endocrinology, Diabetes & Metabolism Physician provider holding D.O. credentials at 2501 W 22ND ST, Sioux Falls, SD, 57105, with a listed phone of (605) 336-3230. NPI 1649626037 was issued on 05/04/2016.
Medicare Part D records for calendar year 2023 show 51 prescription claims written by this provider, covering 15 Medicare beneficiaries and totaling roughly $32K in drug spend, split 59% brand-name and 0% generic by claim count.
Endocrinology, Diabetes & Metabolism Physician is a mid-sized specialty nationwide, with 7,871 enrolled providers across 54 states and an average of 2,639 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 | 1649626037 |
|---|---|
| Specialty | Endocrinology, Diabetes & Metabolism Physician |
| Credentials | D.O. |
| Gender | Female |
| NPI Issued | 05/04/2016 |
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 Natalie Kappus, D.O.. Source: openpaymentsdata.cms.gov.
Total received
$50
Largest payer
Radius Health, Inc.
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.
Brand vs generic prescribing mix · Brand-heavy
Natalie Kappus, D.O. - brand share 59.0%
Endocrinology, Diabetes & Metabolism Physician average
59% brand-name claims vs 0% generic, on 51 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.
51
Total Claims
$32K
Total Drug Cost
15
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 103
- Total Day Supply
- 2,917
- Brand vs Generic
- 59% brand / 0% generic
- Brand Drug Cost
- $32K
Patient Demographics
- Average Patient Age
- 69.9 years
- Avg HCC Risk Score
- 1.65
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
| Drug | Claims |
|---|---|
| Jardiance Empagliflozin | 13 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Endocrinology, Diabetes & Metabolism Physician in SD →
All providers in South Dakota →
Compare specialties →
Endocrinology, Diabetes & Metabolism Physician Overview
How Natalie Kappus, D.O. fits within the Endocrinology, Diabetes & Metabolism Physician landscape nationally.
7,871
Endocrinology, Diabetes & Metabolism Physician Providers in US
54
States with Endocrinology, Diabetes & Metabolism Physician
2,639
Avg Claims per Provider
Natalie Kappus, D.O.'s 51 claims are below the specialty average of 2,639.
Nearby Endocrinology, Diabetes & Metabolism Physician Providers in South Dakota
Other clinicians with the same primary specialty enrolled in South Dakota, drawn from the same CMS NPPES roster as Kappus.
Dr. Richard Barth
M.D.
Sioux Falls, SD
Dr. William Blankenship
MD
Dakota Dunes, SD
Dr. Lorayne Ann Chua
M.D.
Sioux Falls, SD
Dr. Richard Crawford
MD
Sioux Falls, SD
Dr. Marie Angelica Diaz
M.D.
Sioux Falls, SD
Compare Endocrinology, Diabetes & Metabolism 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 South Dakota medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Endocrinology, Diabetes & Metabolism 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 Natalie Kappus, D.O.'s specialty? ▼
Natalie Kappus, D.O. specializes in Endocrinology, Diabetes & Metabolism Physician and practices in Sioux Falls, South Dakota. Credentials: D.O..
How much does Natalie Kappus, D.O. prescribe under Medicare Part D? ▼
In 2023, Natalie Kappus, D.O. wrote 51 Medicare Part D claims totaling $32K in drug costs for 15 beneficiaries.
Where is Natalie Kappus, D.O. located? ▼
Natalie Kappus, D.O. is located at 2501 W 22ND ST, Sioux Falls, SD, 57105. Phone: (605) 336-3230.
What is Natalie Kappus, D.O.'s NPI number? ▼
Natalie Kappus, D.O.'s National Provider Identifier (NPI) is 1649626037, issued on 05/04/2016.
Does Natalie Kappus, D.O. prescribe more brand-name or generic drugs? ▼
Natalie Kappus, D.O.'s prescribing is 59% brand-name and 0% generic drugs by claim count, with $32K in brand drug costs.
How many Endocrinology, Diabetes & Metabolism Physician providers are there in the US? ▼
There are 7,871 Endocrinology, Diabetes & Metabolism Physician providers across 54 states in the US. The average Endocrinology, Diabetes & Metabolism Physician provider writes 2,639 Medicare Part D claims per year.
What drugs does Natalie Kappus, D.O. prescribe most often? ▼
Based on 2023 Medicare Part D data, Natalie Kappus, D.O.'s most frequently prescribed drugs include Jardiance. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Natalie Kappus, D.O. accept Medicare? ▼
Natalie Kappus, D.O. appears in CMS Medicare data with 51 Part D claims and 15 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Natalie Kappus, D.O.'s credentials? ▼
Natalie Kappus, D.O.'s NPI is 1649626037 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 (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.