NPI registry status
Active
2026 NPPES data Obstetrics Physician NPI 1730717968 MD
Verify on CMS → Kate Ferrell, MD
Obstetrics Physician in Sioux City, Iowa.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 1,396 in Obstetrics 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
116
Medicare Part D claims · 55 beneficiaries · Obstetrics Physician avg: 319
Generic prescribing
76%
generic claims · 24% 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
Kate Ferrell, MD filed 116 Medicare Part D claims in 2023 as a Obstetrics Physician in Sioux City, Iowa, prescribing 76% generic.
- 116
- Part D claims, 2023
- 76%
- 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.
Kate Ferrell, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
116 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 certification likely (heuristic, not verified)
Kate Ferrell, MD 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 Kate Ferrell, MD?
Quality data not reportedPrimary specialty
Obstetrics Physician
Medicare Part D claims
116 64% vs specialty avg
Specialty distribution in Iowa
How Obstetrics Physician compares to other specialties among Iowa 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 Obstetrics 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).
Kate Ferrell, MD appears in the CMS NPPES registry as an Obstetrics Physician provider holding MD credentials at 1000 JACKSON ST, Sioux City, IA, 51105, with a listed phone of (712) 252-0501. NPI 1730717968 was issued on 04/01/2020.
Medicare Part D records for calendar year 2023 show 116 prescription claims written by this provider, covering 55 Medicare beneficiaries and totaling roughly $14K in drug spend, split 24% brand-name and 76% generic by claim count, with an opioid prescribing rate of 12.1%.
Obstetrics Physician is a narrow specialty nationwide, with 1,396 enrolled providers across 54 states and an average of 319 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 | 1730717968 |
|---|---|
| Specialty | Obstetrics Physician |
| Credentials | MD |
| Gender | Female |
| NPI Issued | 04/01/2020 |
Hospital and facility affiliations
Facilities where Kate Ferrell, MD 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.
Siouxland Women's Health Care PC
Pender, NE
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
Kate Ferrell, MD - brand share 24.0%
Obstetrics Physician average
24% brand-name claims vs 76% generic, on 116 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.
116
Total Claims
$14K
Total Drug Cost
55
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 135
- Total Day Supply
- 2,674
- Brand vs Generic
- 24% brand / 76% generic
- Brand Drug Cost
- $11K
- Generic Drug Cost
- $3K
- Opioid Claims
- 14 (12.1% rate)
- Antibiotic Claims
- 14
Patient Demographics
- Average Patient Age
- 61.4 years
- Avg HCC Risk Score
- 1.63
- Gender Split
- 100% female / 0% male
- Age Distribution
- <65: 24, 65-74: 20, 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 |
|---|---|
| Myrbetriq Mirabegron | 17 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Obstetrics Physician Overview
How Kate Ferrell, MD fits within the Obstetrics Physician landscape nationally.
1,396
Obstetrics Physician Providers in US
54
States with Obstetrics Physician
319
Avg Claims per Provider
Kate Ferrell, MD's 116 claims are below the specialty average of 319.
Nearby Obstetrics Physician Providers in Iowa
Other clinicians with the same primary specialty enrolled in Iowa, drawn from the same CMS NPPES roster as Ferrell.
Dr. Maren Bettermann
MD
Iowa City, IA
Dr. Geoffrey Bowman
M.D.
Bettendorf, IA
Rebecka Ernst
Iowa City, IA
Dr. Kathleen Lafavor
D.O.
Sioux City, IA
Dr. Chao Li
M.D.
Iowa City, IA
Compare Obstetrics 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 Iowa medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Obstetrics 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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Frequently Asked Questions
What is Kate Ferrell, MD's specialty? ▼
Kate Ferrell, MD specializes in Obstetrics Physician and practices in Sioux City, Iowa. Credentials: MD.
How much does Kate Ferrell, MD prescribe under Medicare Part D? ▼
In 2023, Kate Ferrell, MD wrote 116 Medicare Part D claims totaling $14K in drug costs for 55 beneficiaries.
Where is Kate Ferrell, MD located? ▼
Kate Ferrell, MD is located at 1000 JACKSON ST, Sioux City, IA, 51105. Phone: (712) 252-0501.
What is Kate Ferrell, MD's NPI number? ▼
Kate Ferrell, MD's National Provider Identifier (NPI) is 1730717968, issued on 04/01/2020.
Does Kate Ferrell, MD prescribe more brand-name or generic drugs? ▼
Kate Ferrell, MD's prescribing is 24% brand-name and 76% generic drugs by claim count, with $11K in brand drug costs.
Does Kate Ferrell, MD prescribe opioids? ▼
Yes, Kate Ferrell, MD had 14 opioid claims in 2023 with an opioid prescribing rate of 12.1%.
How many Obstetrics Physician providers are there in the US? ▼
There are 1,396 Obstetrics Physician providers across 54 states in the US. The average Obstetrics Physician provider writes 319 Medicare Part D claims per year.
What drugs does Kate Ferrell, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Kate Ferrell, MD's most frequently prescribed drugs include Myrbetriq. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Kate Ferrell, MD accept Medicare? ▼
Kate Ferrell, MD appears in CMS Medicare data with 116 Part D claims and 55 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Kate Ferrell, MD's credentials? ▼
Kate Ferrell, MD's NPI is 1730717968 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
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.