NPPES file of Aug 9, 2026

Alec Marshall Antanaitis

Gerontology Nurse Practitioner · Jefferson, IA

Alec Marshall Antanaitis is a gerontology nurse practitioner with a practice address in Jefferson, Iowa, and NPI 1104715770, issued on Jun 30, 2025. Check the license (Iowa H184694, 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 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1104715770
Name
Alec Marshall Antanaitis
Primary taxonomy
Gerontology Nurse Practitioner 363LG0600X
License number
H184694 IA
Self-reported in NPPES; status is on the state search
Practice location
1000 W Lincoln Way, Jefferson, IA 50129
Phone
(515) 386-2114
Enumerated
Jun 30, 2025
Record last updated
Mar 13, 2026
Fax
(515) 386-8899
Medicare enrollment
Enrolled (PECOS I20251104003117); 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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8 nearest gerontology nurse practitioner records → All 68 in Iowa → Look up another NPI →

Also registered at 1000 W Lincoln Way

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

  1. Ashley BeekmanPhysical Therapy Assistant1215525290
  2. Mark Buettner, DOEmergency Medicine Physician1861474421
  3. Taylan EntrikenPhysical Therapy Assistant1003679143
  4. Erica ErdahlRegistered Dietitian1700467073
  5. Ashley FridayPhysical Therapist1861836488
  6. Kassidy HackbarthOccupational Therapist1265356174

Verify Alec Marshall Antanaitis 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 H184694    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

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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One hospital affiliation

  1. Greene County Medical CenterJefferson, IA · Critical Access Hospitals

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).

Alec Marshall Antanaitis among 68 gerontology nurse practitioner records in Iowa

Alec Marshall Antanaitis is one of 68 gerontology nurse practitioner records with a practice address in Iowa. 66% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2025, is newer than 90% of them.

  • NPI issued2025 · 90% of these records are older, 6% newer
  • In a Medicare fileYes · 66% of these records are
  • In the CMS Doctors and Clinicians fileYes · 54% of these records are
  • Graduated2025 · median 2019 among the 37 with a school on file
  • Record last updated2026 · 41% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LG0600X and a Iowa practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

1 gerontology nurse practitioner record lists a practice address in Jefferson

They are 1 of the 60 NPPES records with a practice address in Jefferson, and 68 gerontology nurse practitioner records in Iowa.

All 68 in Iowa → Every provider in Jefferson → Gerontology Nurse Practitioner nationwide →

The 8 gerontology nurse practitioner records with the nearest ZIP codes

  1. Sonja Helmers, NPIndianola, IA 501251568263168
  2. Kathy Marlow, ARNPKnoxville, IA 501381396766275
  3. Anna BellAnkeny, IA 500231841028503
  4. Taren FlugAnkeny, IA 500211205382405
  5. Cynthia Rebik Christensen, A.R.N.P.Ankeny, IA 500211891797494
  6. Karen Bates, MSN,ARNP,GNPStory City, IA 502481447247184
  7. Halley BostonAdel, IA 500031659784866
  8. Tanya Comer, ARNPWest Des Moines, IA 502661255157830

Common questions

What is Alec Marshall Antanaitis's NPI number?

Alec Marshall Antanaitis's National Provider Identifier (NPI) is 1104715770, issued on Jun 30, 2025. An NPI identifies a provider in billing; it is not a license.

Where is Alec Marshall Antanaitis located?

The NPPES record lists a practice address at 1000 W Lincoln Way, Jefferson, IA, 50129. Phone: (515) 386-2114. Providers update this record themselves, so call before visiting.

How can I verify Alec Marshall Antanaitis's license?

NPPES lists Iowa license number H184694, as entered by the provider. Search the Iowa board that licenses this profession; the NPPES record confirms identity 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.