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ELAINE DIANA TSIAKOPOULOS APN
NPI 1255996336
Nurse Practitioner - Family in Crown Point, IN

Active since May 05, 2019PECOS Enrolled
2293 N MAIN ST, CROWN POINT, IN 46307(219) 755-3385 Get Directions Write a Review

NPPES record last updated: November 14, 2022. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Nov 14, 2022, Nov 27, 2019, May 5, 2019 (3 updates tracked since 2019).

About Elaine Diana Tsiakopoulos Apn NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

ELAINE DIANA TSIAKOPOULOS APN (NPI 1255996336) is an individual family provider in Crown Point, Indiana, licensed in Illinois (209019372) and active in the NPI registry since May 2019. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1255996336
Entity TypeIndividualFemale
Primary Taxonomy363LF0000X
Provider Legal NameELAINE DIANA TSIAKOPOULOSCredential: APN
Location Address2293 N MAIN STCrown Point, IN 46307-1854
Mailing Address2293 N Main St, Medical ChiCrown Point, IN 46307-5965
Phone(219) 755-3385
Sole ProprietorYes
Enumeration DateMay 5, 2019
Last NPPES UpdateNovember 14, 20223 updates tracked since enumeration
NPPES CertifiedNovember 10, 2022
✔ NPI 1255996336 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LF0000X
License✔ Licensed in IL · 209019372
2293 N MAIN ST, Crown Point, IN 46307
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Elaine Diana Tsiakopoulos Apn is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

2

Medicare enrollment records show Elaine Tsiakopoulos reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

The University Of Chicago Medical Center
27 mi
General Acute Care Hospital
5841 S MARYLAND AVE
Chicago, IL 60637
  • Reassigned Medicare billing, Illinois enrollment
  • 635 clinicians in this Medicare group
NPI 1033218128 (773) 702-1530
Carelon Medical Partners, PC
368 mi
Hospice and Palliative Medicine
22 CENTURY BLVD STE 220
Nashville, TN 37214
  • Reassigned Medicare billing, Indiana enrollment
  • 109 clinicians in this Medicare group
NPI 1124443403 (615) 454-9850

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 46307 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$82.04 typical visit price
range $53.07 – $161.76
Typical copayment $20.51 (range $13.26 – $40.44)
Most-billed visit code 99203
Established Patient
$94.22 typical visit price
range $16.93 – $132.22
Typical copayment $23.55 (range $4.23 – $33.05)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 5

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

LAKE COUNTY JAIL
Public Health or Welfare
2293 N MAIN ST
CROWN POINT, IN 46307
Lake County (219) 648-6300
LYDIA MARQUEZ PA-C
Physician Assistant
2293 N MAIN ST
CROWN POINT, IN 46307
Lake County (219) 755-3385
RICARDO SANTIAGO
Nurse Practitioner (Family)
2293 N MAIN ST
CROWN POINT, IN 46307
Lake County (219) 755-3385
MS. LYNDA NATHAN FNP-BC
Nurse Practitioner (Family)
2293 N MAIN ST
CROWN POINT, IN 46307
Lake County (219) 755-3026
SUSAN CAMPOS PMHNP-BC
Nurse Practitioner (Psychiatric/Mental Health)
2293 N MAIN ST
CROWN POINT, IN 46307
Lake County (219) 755-3385

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Elaine Tsiakopoulos's NPI number?

The NPI number for Elaine Tsiakopoulos is 1255996336. It was assigned to this individual provider in the NPPES registry on May 5, 2019.

Where is Elaine Tsiakopoulos located?

Elaine Tsiakopoulos practices at 2293 N Main St, Crown Point, IN 46307. The listed phone number is (219) 755-3385.

What is Elaine Tsiakopoulos's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

Is Elaine Tsiakopoulos enrolled in Medicare?

Yes. Elaine Tsiakopoulos is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Elaine Tsiakopoulos's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Elaine Tsiakopoulos reassigns Medicare benefits to 2 organizations: The University Of Chicago Medical Center (Chicago, IL) and Carelon Medical Partners, PC (Nashville, TN). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Elaine Tsiakopoulos's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Elaine Tsiakopoulos was last updated on November 14, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.