MARIBEL ALVAREZ
NPI 1003484015
Nurse Practitioner - Family in Munster, IN
About Maribel Alvarez NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARIBEL ALVAREZ (NPI 1003484015) is an individual family provider in Munster, Indiana, licensed in Indiana (71011251A) and active in the NPI registry since June 2021. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses 2
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Maribel Alvarez is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Maribel Alvarez reassigns Medicare billing to 2 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
- 124 clinicians in this Medicare group
Schererville, IN 46375
- Reassigned Medicare billing, Indiana enrollment
- 119 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.
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 20
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 Maribel Alvarez's NPI number?
The NPI number for Maribel Alvarez is 1003484015. It was assigned to this individual provider in the NPPES registry on June 15, 2021.
Where is Maribel Alvarez located?
Maribel Alvarez practices at 8135 Calumet Ave, Munster, IN 46321. The listed phone number is (219) 513-2000.
What is Maribel Alvarez's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Maribel Alvarez enrolled in Medicare?
Yes. Maribel Alvarez is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Maribel Alvarez's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Maribel Alvarez reassigns Medicare benefits to 2 organizations: Nwi Urgent Care, LLC (Munster, IN) and Midwest Express Care, Inc (Schererville, 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 Maribel Alvarez'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 Maribel Alvarez was last updated on September 3, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# Maribel Alvarez · NPI 1003484015
Family physician in Munster, Indiana. Individual provider, active in the CMS NPPES registry since June 15, 2021.
## Identity
- **NPI:** 1003484015 (Entity type: Individual)
- **Enumerated:** June 15, 2021
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** 71011251A (Indiana)
- **Sole proprietor:** No
## Practice location
- **Address:** 8135 CALUMET AVE, Munster, IN 46321-1701
- **Phone:** (219) 513-2000
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Nwi Urgent Care, LLC (NPI 1043596703, Munster, IN); Midwest Express Care, Inc (NPI 1942642848, Schererville, IN) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** September 3, 2021
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Source: [NPI Profile](https://npiprofile.com/npi/1003484015) · Data from the CMS NPPES public registry.