MELISSA R MAAG CNP
NPI 1497260046
Nurse Practitioner - Family in Napoleon, OH
About Melissa R Maag Cnp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MELISSA R MAAG CNP (NPI 1497260046) is an individual family provider in Napoleon, Ohio, licensed in Ohio (APRN.CNP.022107) and active in the NPI registry since December 2017. She is enrolled in Medicare PECOS, is affiliated with Mercy Health-st Rita's Medical Center, and maintains 4 additional practice locations.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 4
Other Identifiers 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
Melissa R Maag Cnp 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 Reassignment
Medicare enrollment records show Melissa Maag reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Defiance, OH 43512
- Reassigned Medicare billing, Ohio enrollment
- 129 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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Mercy Health-St Rita's Medical Center
Acute Care Hospitals · Lima, OHPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 43545 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 2
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 Melissa Maag's NPI number?
The NPI number for Melissa Maag is 1497260046. It was assigned to this individual provider in the NPPES registry on December 5, 2017.
Where is Melissa Maag located?
Melissa Maag practices at 1809 Oakwood Ave, Napoleon, OH 43545. The listed phone number is (419) 960-4963.
What is Melissa Maag's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Melissa Maag enrolled in Medicare?
Yes. Melissa Maag 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 organization bills Medicare for Melissa Maag's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Melissa Maag reassigns Medicare benefits to Health Partners Of Western Ohio (Defiance, OH). The 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 Melissa Maag's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Melissa Maag accept?
Health plans from Anthem Blue Cross and Blue Shield, CareSource, CareSource (Common Ground Healthcare), MedMutual and Oscar Health Insurance and 2 other insurers list Melissa Maag 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 Melissa Maag affiliated with any hospitals?
According to CMS data, Melissa Maag is affiliated with Mercy Health-St Rita's Medical Center.
When was this NPI record last updated?
The NPPES record for Melissa Maag was last updated on October 19, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 days 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.
# Melissa R Maag, CNP · NPI 1497260046
Family physician in Napoleon, Ohio. Individual provider, active in the CMS NPPES registry since December 5, 2017.
## Identity
- **NPI:** 1497260046 (Entity type: Individual)
- **Enumerated:** December 5, 2017
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** APRN.CNP.022107 (Ohio)
- **Sole proprietor:** No
## Practice location
- **Address:** 1809 OAKWOOD AVE, Napoleon, OH 43545-9243
- **Phone:** (419) 960-4963
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Health Partners Of Western Ohio (NPI 1780929729, Defiance, OH), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2017
## Record status
- **NPPES last updated:** October 19, 2026
- **Other identifiers:** Medicaid 0254437 (OH)
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Source: [NPI Profile](https://npiprofile.com/npi/1497260046) · Data from the CMS NPPES public registry.