DR. HELEN TZANETAKOS OD
NPI 1083866354
Optometrist in Munster, IN
About Dr. Helen Tzanetakos Od NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. HELEN TZANETAKOS OD (NPI 1083866354) is an individual optometrist in Munster, Indiana, licensed in Indiana (18004164A) and active in the NPI registry since October 2008. She is enrolled in Medicare PECOS, maintains a secondary practice location in Chicago, and is a graduate of Illinois College Of Optometry At Chicago (2004).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Helen Tzanetakos Od is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
4Medicare enrollment records show Helen Tzanetakos reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Munster, IN 46321
- Reassigned Medicare billing, Indiana enrollment
- 162 clinicians in this Medicare group
Lansing, IL 60438
- Reassigned Medicare billing, Illinois enrollment
- 114 clinicians in this Medicare group
Saint John, IN 46373
- Reassigned Medicare billing, Illinois and Indiana enrollments
- 5 clinicians in this Medicare group
Chicago, IL 60607
- Reassigned Medicare billing, Illinois enrollment
- 8 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 2
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 46321 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Helen Tzanetakos's NPI number?
The NPI number for Helen Tzanetakos is 1083866354. It was assigned to this individual provider in the NPPES registry on October 17, 2008.
Where is Helen Tzanetakos located?
Helen Tzanetakos practices at 9410 Calumet Ave Ste 103, Munster, IN 46321. The listed phone number is (219) 728-4452.
What is Helen Tzanetakos's specialty?
The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.
Is Helen Tzanetakos enrolled in Medicare?
Yes. Helen Tzanetakos is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Helen Tzanetakos's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Helen Tzanetakos reassigns Medicare benefits to 4 organizations: Myeyedr Optometry Of Indiana, LLC (Munster, IN), Myeyedr Optometry Of Illinois, LLC (Lansing, IL), Nbht Indiana (Saint John, IN) and Htnb LLC (Chicago, IL). 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 Helen Tzanetakos's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Helen Tzanetakos accept?
Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Buckeye Health Plan, Ambetter from Meridian and Anthem Blue Cross and Blue Shield and 15 other insurers list Helen Tzanetakos as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Helen Tzanetakos was last updated on October 24, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 months 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.
# Dr. Helen Tzanetakos, OD · NPI 1083866354
Optometrist provider in Munster, Indiana. Individual provider, active in the CMS NPPES registry since October 17, 2008.
## Identity
- **NPI:** 1083866354 (Entity type: Individual)
- **Enumerated:** October 17, 2008
- **Primary specialty:** Optometrist · taxonomy 152W00000X
- **State license:** 18004164A (Indiana)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 9410 CALUMET AVE STE 103, Munster, IN 46321-0018
- **Phone:** (219) 728-4452 · **Fax:** (219) 728-4357
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health
- **Bills Medicare through:** 4 organizations under Medicare reassignment (form CMS-855R): Myeyedr Optometry Of Indiana, LLC (NPI 1922974526, Munster, IN); Myeyedr Optometry Of Illinois, LLC (NPI 1811413727, Lansing, IL); Nbht Indiana (NPI 1699250548, Saint John, IN); Htnb LLC (NPI 1588993778, Chicago, IL) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Illinois College Of Optometry At Chicago, class of 2004
## Record status
- **NPPES last updated:** October 24, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1083866354) · Data from the CMS NPPES public registry.