NPPES file of Aug 9, 2026

David Gantz, DO

Family Medicine Physician · Creston, IA

David Gantz, DO is a family medicine physician with a practice address in Creston, Iowa, and NPI 1639551567, issued on Jun 27, 2015. Check the license (Iowa DO-06155, 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
1639551567
Name
David Gantz
Credential
DO
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
DO-06155 IA
Self-reported in NPPES; status is on the state search
Practice location
1700 W Townline St, Creston, IA 50801
Phone
(641) 782-2131
Enumerated
Jun 27, 2015
Record last updated
Feb 27, 2024
Fax
(641) 782-3879
Medicare enrollment
Enrolled (PECOS I20240104002606); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 1700 W Townline St

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

  1. Gregory Anderson, CRNACertified Registered Nurse Anesthetist1265641310
  2. Stephanie Anderson, CRNACertified Registered Nurse Anesthetist1629275532
  3. Brooke Becker, ARNP, CPNP-PCPediatric Nurse Practitioner1427607753
  4. Leeann Berg, ARNPPsychiatric/Mental Health Nurse Practitioner1710548581
  5. Madison Bergren, FNP-CNurse Practitioner1356810949
  6. Megan Birchard, ATCAthletic Trainer1780164996

Verify David Gantz 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-06155
    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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42% fewer Medicare Part D claims than the average family medicine physician in 2024

2,068 Medicare Part D claims for 147 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 138 claims were for opioids.

  1. David Gantz2,068
  2. Specialty average3,544

Most prescribed

  1. Lisinopril82 claims
  2. Gabapentin78 claims
  3. Atorvastatin Calcium76 claims
  4. Pantoprazole Sodium68 claims
  5. Levothyroxine Sodium61 claims
  6. Amlodipine Besylate56 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.

One hospital affiliation

  1. Greater Regional Medical CenterCreston, IA · Critical Access Hospitals3 of 5 stars

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

David Gantz among 2,336 family medicine physician records in Iowa

David Gantz, DO 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 2015, is newer than 73% of them.

  • NPI issued2015 · 73% of these records are older, 24% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 59% of these records are
  • Graduated2015 · median 2006 among the 1,367 with a school on file
  • Record last updated2024 · 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).

9 family medicine physician records list a practice address in Creston

They are 9 of the 134 NPPES records with a practice address in Creston, and 2,336 family medicine physician records in Iowa.

The 8 family medicine physician records with the nearest ZIP codes

  1. Erika Brown, M.D.Creston, IA 508011770803082
  2. James Gerdes, DOCreston, IA 508011972540011
  3. John Hoyt, D.O.Creston, IA 508011477507150
  4. Kristen Krakovec, MDCreston, IA 508011033634407
  5. Karen Krogstad, MDCreston, IA 508011619948023
  6. James Mansour, M.D.Creston, IA 508011053365395
  7. Cassie Rasmussen, D.O.Creston, IA 508011770719726
  8. Daniel Walker, D.O.Creston, IA 508011396799078

Common questions

What is David Gantz, DO's NPI number?

David Gantz, DO's National Provider Identifier (NPI) is 1639551567, issued on Jun 27, 2015. An NPI identifies a provider in billing; it is not a license.

Where is David Gantz, DO located?

The NPPES record lists a practice address at 1700 W Townline St, Creston, IA, 50801. Phone: (641) 782-2131. Providers update this record themselves, so call before visiting.

How can I verify David Gantz, DO's license?

NPPES lists Iowa license number DO-06155, 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 David Gantz, DO prescribe under Medicare Part D?

In 2024, David Gantz, DO had 2,068 Medicare Part D claims for 147 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.