Nicole Sheffield, ARNP
Family Nurse Practitioner · Mason City, IA
Nicole Sheffield, ARNP is a family nurse practitioner with a practice address in Mason City, Iowa, and NPI 1124583281, issued on Feb 4, 2019. Check the license (Iowa A128252, as entered in NPPES) with the Iowa board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Nicole Sheffield
- Credential
- ARNP
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- A128252 IA
Self-reported in NPPES; status is on the state search - Practice location
- 250 S Crescent Dr, Mason City, IA 50401
- Phone
- (641) 494-5300
- Enumerated
- Feb 4, 2019
- Record last updated
- Oct 27, 2025
- Fax
- (641) 494-5321
- Medicare enrollment
- Enrolled (PECOS I20190711000109); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 1,971 in Iowa → Look up another NPI →
Also registered at 250 S Crescent Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Nicole Sheffield in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Iowa board licenses this profession
Search for license A128252Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Most of these Medicare Part D claims are vaccines, 83% of the cost of the top drugs
436 Medicare Part D claims for 148 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. 30 claims were for opioids.
Most prescribed
Pharmacies often give vaccines under a standing order that names one clinician, and CMS counts every such claim under that clinician's NPI. These claims are therefore not a measure of this clinician's own prescribing.
- Atorvastatin Calcium33 claims
- Levothyroxine Sodium18 claims
- Oxycodone Hcl16 claims
- Losartan Potassium14 claims
- Pantoprazole Sodium14 claims
- Arexvy13 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The MIPS final score for 2023 (Medicare payment program): 87.1 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- North Iowa Mercy ClinicsMason City, IA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Nicole Sheffield among 1,971 family nurse practitioner records in Iowa
Nicole Sheffield, ARNP is one of 1,971 family nurse practitioner records with a practice address in Iowa. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 54% of them.
- NPI issued2019 · 54% of these records are older, 40% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 71% of these records are
- Graduated2018 · median 2018 among the 1,398 with a school on file
- Record last updated2025 · 43% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Iowa practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
29 family nurse practitioner records list a practice address in Mason City
They are 29 of the 866 NPPES records with a practice address in Mason City, and 1,971 family nurse practitioner records in Iowa.
All 1,971 in Iowa → Every provider in Mason City → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Marc Andersen, ARNPMason City, IA 504011932361847
- Holly Arciniega, ARNPMason City, IA 504011487935367
- Kelli Badker, ARNPMason City, IA 504011609329754
- Ashley Fjeldheim, NPMason City, IA 504011679932487
- Katelyn FroehnerMason City, IA 504011699126193
- Michael GerberMason City, IA 504011639607757
- Sherry Miller, ARNPMason City, IA 504011063969038
- Susan Mullenbach, ARNPMason City, IA 504011518077544
Common questions
What is Nicole Sheffield, ARNP's NPI number?
Nicole Sheffield, ARNP's National Provider Identifier (NPI) is 1124583281, issued on Feb 4, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Nicole Sheffield, ARNP located?
The NPPES record lists a practice address at 250 S Crescent Dr, Mason City, IA, 50401. Phone: (641) 494-5300. Providers update this record themselves, so call before visiting.
How can I verify Nicole Sheffield, ARNP's license?
NPPES lists Iowa license number A128252, as entered by the provider. Search the Iowa board that licenses this profession; the NPPES record confirms identity only.
How much does Nicole Sheffield, ARNP prescribe under Medicare Part D?
In 2024, Nicole Sheffield, ARNP had 436 Medicare Part D claims for 148 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions only.
What is Nicole Sheffield, ARNP's MIPS final score?
The 2023 MIPS final score is 87.1 of 100. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.