NPPES file of Aug 9, 2026

Anastasija Steffek, FNP

Family Nurse Practitioner · Chesterton, IN

Anastasija Steffek, FNP is a family nurse practitioner with a practice address in Chesterton, Indiana, and NPI 1639023732, issued on Feb 25, 2026. Check the license (Indiana 71017791A, as entered in NPPES) with the Indiana 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
1639023732
Name
Anastasija Steffek
Credential
FNP
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
71017791A IN
Self-reported in NPPES; status is on the state search
Practice location
505 E 1100 N, Chesterton, IN 46304
Phone
(219) 926-3420
Enumerated
Feb 25, 2026
Record last updated
Feb 26, 2026
Medicare enrollment
Enrolled (PECOS I20260407001577); 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 family nurse practitioner records → All 5,867 in Indiana → Look up another NPI →

Also registered at 505 E 1100 N

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

  1. Juana Ambriz De Williams, DNP, FNP-BCFamily Nurse Practitioner1083081129
  2. Colleen Bennett, FNPFamily Nurse Practitioner1265361828
  3. Cynthia Cheek, FNPFamily Nurse Practitioner1730466723
  4. Ingrid Cooper, APRNFamily Nurse Practitioner1619566593
  5. Beth Gemeinhart, RPHPharmacist1912503657
  6. Jamie HosfeldFamily Nurse Practitioner1740713197

Verify Anastasija Steffek in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Indiana board licenses this profession
    Search for license 71017791A    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 Indiana 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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Bills Medicare through one group practice

  1. Minuteclinic Diagnostics OF Indiana LLCChesterton, IN

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Anastasija Steffek among 5,867 family nurse practitioner records in Indiana

Anastasija Steffek, FNP is one of 5,867 family nurse practitioner records with a practice address in Indiana. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2026, is newer than 98% of them.

  • NPI issued2026 · 98% of these records are older, 0% newer
  • In a Medicare fileYes · 82% of these records are
  • In the CMS Doctors and Clinicians fileYes · 67% of these records are
  • Graduated2025 · median 2018 among the 3,953 with a school on file
  • Record last updated2026 · 33% 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 Indiana 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 Chesterton

They are 29 of the 570 NPPES records with a practice address in Chesterton, and 5,867 family nurse practitioner records in Indiana.

All 5,867 in Indiana → Every provider in Chesterton → Family Nurse Practitioner nationwide →

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Juana Ambriz De Williams, DNP, FNP-BCChesterton, IN 463041083081129
  2. Natalie Babcock, FNPChesterton, IN 463041942598081
  3. Rachael Callaway, RN, BSN, FNPChesterton, IN 463041053663401
  4. Cynthia Cheek, FNPChesterton, IN 463041730466723
  5. Jennifer Davison, F.N.P.Chesterton, IN 463041336336155
  6. Melissa Dvorscak, NPChesterton, IN 463041023353174
  7. Shannon Gavin, MSN, RN, FNP-BCChesterton, IN 463041801199070
  8. Jamie HosfeldChesterton, IN 463041740713197

Common questions

What is Anastasija Steffek, FNP's NPI number?

Anastasija Steffek, FNP's National Provider Identifier (NPI) is 1639023732, issued on Feb 25, 2026. An NPI identifies a provider in billing; it is not a license.

Where is Anastasija Steffek, FNP located?

The NPPES record lists a practice address at 505 E 1100 N, Chesterton, IN, 46304. Phone: (219) 926-3420. Providers update this record themselves, so call before visiting.

How can I verify Anastasija Steffek, FNP's license?

NPPES lists Indiana license number 71017791A, as entered by the provider. Search the Indiana 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.