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MELYN JOY MABUNAY FNP-BC
NPI 1659261279
Nurse Practitioner - Family in Munster, IN

Active since July 07, 2025PECOS EnrolledAccepts Medicare Assignment
9410 CALUMET AVE STE 101, MUNSTER, IN 46321(219) 922-8051(219) 922-8608 Get Directions Write a Review

NPPES record last updated: April 6, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Apr 6, 2026, Feb 3, 2026, Jul 7, 2025 (3 updates tracked since 2025).

About Melyn Joy Mabunay Fnp-bc NPPES

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

MELYN JOY MABUNAY FNP-BC (NPI 1659261279) is an individual family provider in Munster, Indiana, licensed in Indiana (28167189A) and active in the NPI registry since July 2025. She is enrolled in Medicare PECOS, is affiliated with Community Hospital, and is a graduate of Other (2025).

NPPES Registry Identity

NPI1659261279
Entity TypeIndividualFemale
Primary Taxonomy363LF0000X
Provider Legal NameMELYN JOY MABUNAYCredential: FNP-BC
Location Address9410 CALUMET AVE STE 101Munster, IN 46321-0018
Mailing Address9410 Calumet Ave Ste 101Munster, IN 46321-0018 · (219) 922-8051 · Fax (219) 922-8608
Phone(219) 922-8051
Fax(219) 922-8608
Sole ProprietorNo
Medical School CMSOtherGraduated 2025
Enumeration DateJuly 7, 2025
Last NPPES UpdateApril 6, 20263 updates tracked since enumeration
NPPES CertifiedApril 6, 2026
✔ NPI 1659261279 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 IN · 28167189A
9410 CALUMET AVE STE 101, Munster, IN 46321
Open in Google Maps ↗

Other Names 1

Former Name (1)Melyn Joy Autencio

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Buckeye Health Plan, Ambetter from Meridian, Ambetter Health and more.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

Melyn Joy Mabunay Fnp-bc 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.

PECOS PAC ID8123512761
PECOS Enrollment IDI20251211001129
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 Melyn Mabunay reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Dr Mary Tilak PC
Same address
Obesity Medicine
9410 CALUMET AVE STE 101
Munster, IN 46321
  • Reassigned Medicare billing, Indiana enrollment
  • 10 clinicians in this Medicare group
NPI 1003096900 (219) 922-8051
Kidney Care Center Merrillville LLC
10 mi
Nephrology
757 E 81ST AVE
Merrillville, IN 46410
  • Reassigned Medicare billing, Indiana enrollment
  • 8 clinicians in this Medicare group
NPI 1417336207 (219) 472-0379

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

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Community Hospital

Acute Care Hospitals · Munster, IN
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number150125
Location901 Macarthur BlvdMunster, IN 46321 · Lake County
Emergency services Birthing friendly

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.

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 6

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

DR MARY TILAK PC
Internal Medicine (Obesity Medicine)
9410 CALUMET AVE STE 101
MUNSTER, IN 46321
Lake County (219) 922-8051
KONSTANTINA GARDIKIOTES NP
Nurse Practitioner (Family)
9410 CALUMET AVE STE 101
MUNSTER, IN 46321
Lake County (219) 922-8051
STEPHANIE GAIL PENACHO PMHNP
Nurse Practitioner (Psychiatric/Mental Health)
9410 CALUMET AVE STE 101
MUNSTER, IN 46321
Lake County (219) 922-8051
EMILY M HENSLEY PA
Physician Assistant
9410 CALUMET AVE STE 101
MUNSTER, IN 46321
Lake County (219) 922-8051
MRS. LISA MICHELLE MCKINNEY FNP-C
Nurse Practitioner (Family)
9410 CALUMET AVE STE 101
MUNSTER, IN 46321
Lake County (219) 922-8051
LORRIE OZINGA DNP, AGPCNP
Nurse Practitioner (Gerontology)
9410 CALUMET AVE STE 101
MUNSTER, IN 46321
Lake County (219) 922-8051

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 Melyn Mabunay's NPI number?

The NPI number for Melyn Mabunay is 1659261279. It was assigned to this individual provider in the NPPES registry on July 7, 2025. The provider is also known as Melyn Joy Autencio.

Where is Melyn Mabunay located?

Melyn Mabunay practices at 9410 Calumet Ave Ste 101, Munster, IN 46321. The listed phone number is (219) 922-8051.

What is Melyn Mabunay's specialty?

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

Is Melyn Mabunay enrolled in Medicare?

Yes. Melyn Mabunay 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 Melyn Mabunay's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Melyn Mabunay reassigns Medicare benefits to 2 organizations: Dr Mary Tilak PC (Munster, IN) and Kidney Care Center Merrillville LLC (Merrillville, IN). 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 Melyn Mabunay's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Melyn Mabunay accept?

Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian, Anthem Blue Cross and Blue Shield and CareSource and 1 other insurer list Melyn Mabunay 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.

Is Melyn Mabunay affiliated with any hospitals?

According to CMS data, Melyn Mabunay is affiliated with Community Hospital.

When was this NPI record last updated?

The NPPES record for Melyn Mabunay was last updated on April 6, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.