NPPES file of Aug 9, 2026

Debra K. Groath, ARNP

Nurse Practitioner · Mason City, IA

Debra K. Groath, ARNP is a nurse practitioner with a practice address in Mason City, Iowa, and NPI 1265534937, issued on Sep 2, 2006. Check the license (Iowa A-071648, as entered in NPPES) with the Iowa board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1265534937
Name
Debra K. Groath
Credential
ARNP
Primary taxonomy
Nurse Practitioner 363L00000X
License number
A-071648 IA
Self-reported in NPPES; status is on the state search
Practice location
1501 4TH St SW, Mason City, IA 50401
Phone
(641) 422-5244
Enumerated
Sep 2, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(641) 422-6484
Medicaid ID
1428540 IA
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 1501 4TH St SW

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Marc Andersen, ARNPFamily Nurse Practitioner1932361847
  2. John Knapper, ATC, LATAthletic Trainer1174091151
  3. Jay Mixdorf, MDFamily Medicine Physician1841331253
  4. Linda Schluter, ARNPNurse Practitioner1265540330
  5. Leslie Smith, DOPlastic and Reconstructive Surgery Physician1245274745

Verify Debra K. Groath in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Iowa board licenses this profession
    Search for license A-071648
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Iowa license search

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82% fewer Medicare Part D claims than the average nurse practitioner in 2024

199 Medicare Part D claims for 27 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims.

  1. Debra Groath199
  2. Specialty average1,109

Most prescribed

  1. Omeprazole21 claims
  2. Gabapentin18 claims
  3. Atorvastatin Calcium12 claims
  4. Levothyroxine Sodium11 claims
  5. Ondansetron Hcl11 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.

Debra K. Groath among 1,294 nurse practitioner records in Iowa

Debra K. Groath, ARNP is one of 1,294 nurse practitioner records with a practice address in Iowa. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 11% of them.

  • NPI issued2006 · 11% of these records are older, 77% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileNo · 68% of these records are
  • Record last updated2007 · 46% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363L00000X and a Iowa practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

28 nurse practitioner records list a practice address in Mason City

They are 28 of the 866 NPPES records with a practice address in Mason City, and 1,294 nurse practitioner records in Iowa.

The 8 nurse practitioner records with the nearest ZIP codes

  1. Marie Cole, ARNPMason City, IA 504011487761490
  2. Rhonda Cooper, ARNPMason City, IA 504011558463539
  3. Lila Courtney, ARNPMason City, IA 504011225143043
  4. Sharon Enabnit, ARNPMason City, IA 504011912015181
  5. Joann Ermer-Seltun, ARNPMason City, IA 504011801998570
  6. Mitzi Garrison, FNPMason City, IA 504011730150749
  7. Linda Schluter, ARNPMason City, IA 504011265540330
  8. Kari Swisher, ARNPMason City, IA 504011326010224

Common questions

What is Debra K. Groath, ARNP's NPI number?

Debra K. Groath, ARNP's National Provider Identifier (NPI) is 1265534937, issued on Sep 2, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Debra K. Groath, ARNP located?

The NPPES record lists a practice address at 1501 4TH St SW, Mason City, IA, 50401. Phone: (641) 422-5244. Providers update this record themselves, so call before visiting.

How can I verify Debra K. Groath, ARNP's license?

NPPES lists Iowa license number A-071648, as entered by the provider. Search the Iowa board that licenses this profession; the NPPES record confirms identity only.

How much does Debra K. Groath, ARNP prescribe under Medicare Part D?

In 2024, Debra K. Groath, ARNP had 199 Medicare Part D claims for 27 beneficiaries; the average among nurse practitioner prescribers was 1,109. Part D covers Medicare prescriptions only.

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.