Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Mary Sajn, AGACNP-BC

Individual provider Gerontology Registered Nurse · NPI 1477141729

Mary Sajn, AGACNP-BC is a Gerontology Registered Nurse in Munster, Indiana. Licensed in Indiana. Registered with an NPI since 2021.

Licensed in
IN
In the registry since
2021
Specialties on file
3

Practice location Address checks out

901 Macarthur Blvd
Munster, IN 46321-2901
Phone: (219) 703-4367
Fax: (219) 852-6473
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Primary Care Nurse Practitioner (primary) Taxonomy 363LP2300X · Licence 71011007A (IN)
Gerontology Registered Nurse Taxonomy 163WG0600X · Licence 28170191A (IN)
Gerontology Nurse Practitioner Taxonomy 363LG0600X · Licence 71011007A (IN)

Record details

NPI number1477141729
Entity typeIndividual (Type 1)
GenderFemale
Credentials AGACNP-BC
Sole proprietorNo
NPI enumeratedJanuary 4, 2021
Last updated in NPPESDecember 16, 2022
Certification dateDecember 16, 2022

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients28
Services billed 30 a service is one billed item, such as a visit, a test or a procedure
Average patient age77

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $422 19 payments · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.