NPI registry status
Active
2026 NPPES data Family Nurse Practitioner NPI 1164612834
Verify on CMS → Karen Sherk
Family Nurse Practitioner in Edina, Minnesota.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 210,832 in Family Nurse Practitioner, 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
3K
Medicare Part D claims · 465 beneficiaries · Family Nurse Practitioner avg: 1K
Generic prescribing
73%
generic claims · 27% 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
Karen Sherk filed 2,731 Medicare Part D claims in 2023 as a Family Nurse Practitioner in Edina, Minnesota, prescribing 73% generic.
- 3K
- Part D claims, 2023
- 73%
- generic prescribing
- ≥88th
- 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.
Karen Sherk's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
2,731 ≥ 88th percentile 88% 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 Karen Sherk?
Quality data not reportedPrimary specialty
Family Nurse Practitioner
Medicare Part D claims
2,731 123% vs specialty avg
Specialty distribution in Minnesota
How Family Nurse Practitioner compares to other specialties among Minnesota 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 Family Nurse Practitioner. 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).
Karen Sherk appears in the CMS NPPES registry as a Family Nurse Practitioner provider at 3625 W 65TH ST, Edina, MN, 55435, with a listed phone of (952) 920-7001. NPI 1164612834 was issued on 07/30/2007.
Medicare Part D records for calendar year 2023 show 2,731 prescription claims written by this provider, covering 465 Medicare beneficiaries and totaling roughly $1.1 million in drug spend, split 27% brand-name and 73% generic by claim count.
Family Nurse Practitioner is a high-volume specialty nationwide, with 210,832 enrolled providers across 56 states and an average of 1,222 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 | 1164612834 |
|---|---|
| Specialty | Family Nurse Practitioner |
| Gender | Female |
| NPI Issued | 07/30/2007 |
Brand vs generic prescribing mix · Above average
Karen Sherk - brand share 27.0%
Family Nurse Practitioner average
27% brand-name claims vs 73% generic, on 2,731 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.
2,731
Total Claims
$1.1M
Total Drug Cost
465
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 7,277
- Total Day Supply
- 217,614
- Brand vs Generic
- 27% brand / 73% generic
- Brand Drug Cost
- $976K
- Generic Drug Cost
- $112K
Patient Demographics
- Average Patient Age
- 77.3 years
- Avg HCC Risk Score
- 1.29
- Gender Split
- 47% female / 53% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Karen Sherk prescribes most
Top Medicare Part D drugs by claim count, 2023
- Metoprolol Succinate
Metoprolol Succinate
522 claims
- Eliquis
Eliquis
516 claims
- Flecainide Acetate
Flecainide Acetate
337 claims
- Xarelto 191
Xarelto
191 claims
- Sotalol 177
Sotalol
177 claims
- Diltiazem 24hr Er … 171
Diltiazem 24hr Er (Cd)
171 claims
- Amiodarone Hcl 164
Amiodarone Hcl
164 claims
- Furosemide 91
Furosemide
91 claims
| Drug | Claims |
|---|---|
| Metoprolol Succinate | 522 |
| Eliquis Apixaban | 516 |
| Flecainide Acetate | 337 |
| Xarelto Rivaroxaban | 191 |
| Sotalol Sotalol Hcl | 177 |
| Diltiazem 24hr Er (Cd) Diltiazem Hcl | 171 |
| Amiodarone Hcl | 164 |
| Furosemide | 91 |
| Atorvastatin Calcium | 81 |
| Losartan Potassium | 67 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Family Nurse Practitioner Overview
How Karen Sherk fits within the Family Nurse Practitioner landscape nationally.
210,832
Family Nurse Practitioner Providers in US
56
States with Family Nurse Practitioner
1,222
Avg Claims per Provider
Karen Sherk's 2,731 claims are above the specialty average of 1,222.
Nearby Family Nurse Practitioner Providers in Minnesota
Other clinicians with the same primary specialty enrolled in Minnesota, drawn from the same CMS NPPES roster as Sherk.
Dr. Christine Aas-Larson
RN, CNP
Duluth, MN
Dr. Joeanna Aasen
APRN, CNP, DNP
Minneapolis, MN
Rodney Abary
Minneapolis, MN
Dr. Hamdi Abdi
ARNP
Minneapolis, MN
Nimo Abdi
Eden Prairie, MN
Compare Family Nurse Practitioner 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 Minnesota medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Family Nurse Practitioner 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 Karen Sherk's specialty? ▼
Karen Sherk specializes in Family Nurse Practitioner and practices in Edina, Minnesota.
How much does Karen Sherk prescribe under Medicare Part D? ▼
In 2023, Karen Sherk wrote 2,731 Medicare Part D claims totaling $1.1M in drug costs for 465 beneficiaries.
Where is Karen Sherk located? ▼
Karen Sherk is located at 3625 W 65TH ST, Edina, MN, 55435. Phone: (952) 920-7001.
What is Karen Sherk's NPI number? ▼
Karen Sherk's National Provider Identifier (NPI) is 1164612834, issued on 07/30/2007.
Does Karen Sherk prescribe more brand-name or generic drugs? ▼
Karen Sherk's prescribing is 27% brand-name and 73% generic drugs by claim count, with $976K in brand drug costs.
How many Family Nurse Practitioner providers are there in the US? ▼
There are 210,832 Family Nurse Practitioner providers across 56 states in the US. The average Family Nurse Practitioner provider writes 1,222 Medicare Part D claims per year.
What drugs does Karen Sherk prescribe most often? ▼
Based on 2023 Medicare Part D data, Karen Sherk's most frequently prescribed drugs include Metoprolol Succinate, Eliquis, Flecainide Acetate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Karen Sherk accept Medicare? ▼
Karen Sherk appears in CMS Medicare data with 2,731 Part D claims and 465 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Karen Sherk's credentials? ▼
Karen Sherk's NPI is 1164612834. 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.