NPPES file of Aug 9, 2026

Garrett James Feddersen, D.O.

Family Medicine Physician · Storm Lake, IA

Garrett James Feddersen, D.O. is a family medicine physician with a practice address in Storm Lake, Iowa, and NPI 1659711349, issued on Jun 27, 2013. Check the license (Iowa DO-04574, as entered in NPPES) on the Iowa Board of Medicine; 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
1659711349
Name
Garrett James Feddersen
Credential
D.O.
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
DO-04574 IA
Self-reported in NPPES; status is on the state search
Practice location
1525 W 5TH St, Storm Lake, IA 50588
Phone
(712) 213-8676
Enumerated
Jun 27, 2013
Record last updated
Aug 6, 2018 (not updated in 8 years: call before relying on the address or phone)
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 1525 W 5TH St

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

  1. Sharon Arndt-Nelson, ARNPPsychiatric/Mental Health Nurse Practitioner1073822151
  2. Angela Boll, CRNACertified Registered Nurse Anesthetist1114542834
  3. Russell Chrischilles, PTA-BAPhysical Therapy Assistant1740540640
  4. Monica Firme, CRNACertified Registered Nurse Anesthetist1396957395
  5. Ingrid Franze, M.D.Diagnostic Radiology Physician1306828116
  6. Jamie Grieme, MNTRegistered Dietitian1851709703

Verify Garrett James Feddersen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIowa Board of Medicine
    Search for license DO-04574
    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
Open the Iowa license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Most of these Medicare Part D claims are vaccines, 85% of the cost of the top drugs

270 Medicare Part D claims for 183 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims. 52 claims were for opioids.

  1. Garrett Feddersen270
  2. Specialty average3,544

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.

  1. Hydrocodone-Acetaminophen42 claims
  2. Prednisone34 claims
  3. Cephalexin28 claims
  4. Arexvy12 claims
  5. Cefdinir12 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.

Garrett James Feddersen among 2,336 family medicine physician records in Iowa

Garrett James Feddersen, D.O. is one of 2,336 family medicine physician records with a practice address in Iowa. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 69% of them.

  • NPI issued2013 · 69% of these records are older, 29% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileNo · 59% of these records are
  • Record last updated2018 · 61% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Iowa practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

20 family medicine physician records list a practice address in Storm Lake

They are 20 of the 182 NPPES records with a practice address in Storm Lake, and 2,336 family medicine physician records in Iowa.

The 8 family medicine physician records with the nearest ZIP codes

  1. David Archer, MDStorm Lake, IA 505881588635965
  2. David Crippin, MDStorm Lake, IA 505881205808664
  3. Timothy Daniels, MDStorm Lake, IA 505881740252063
  4. Michael Dehner, MDStorm Lake, IA 505881346217916
  5. Kyle Glienke, MDStorm Lake, IA 505881851633713
  6. Robert Grant, MDStorm Lake, IA 505881689646036
  7. Jason Huisenga, D.O.Storm Lake, IA 505881609098649
  8. Joan Nilles, MDStorm Lake, IA 505881053383257

Common questions

What is Garrett James Feddersen, D.O.'s NPI number?

Garrett James Feddersen, D.O.'s National Provider Identifier (NPI) is 1659711349, issued on Jun 27, 2013. An NPI identifies a provider in billing; it is not a license.

Where is Garrett James Feddersen, D.O. located?

The NPPES record lists a practice address at 1525 W 5TH St, Storm Lake, IA, 50588. Phone: (712) 213-8676. Providers update this record themselves, so call before visiting.

How can I verify Garrett James Feddersen, D.O.'s license?

NPPES lists Iowa license number DO-04574, as entered by the provider. Search the Iowa Board of Medicine at https://dial.iowa.gov/about-dial/boards-and-commissions/medicine. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Garrett James Feddersen, D.O. prescribe under Medicare Part D?

In 2024, Garrett James Feddersen, D.O. had 270 Medicare Part D claims for 183 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.