GIANNA L SERVICE MD
NPI 1013939859
Family Medicine in Battle Creek, MI
About Gianna L Service Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
GIANNA L SERVICE MD (NPI 1013939859) is an individual family medicine provider in Battle Creek, Michigan, licensed in Michigan (4301087684) and active in the NPI registry since July 2006. She is enrolled in Medicare PECOS, is affiliated with Bronson Methodist Hospital, and is a graduate of Michigan State University College Of Human Medicine (2003).
NPPES Registry Identity
Specialties & Licenses
Other Names 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
Gianna L Service Md 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 Gianna Service reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Battle Creek, MI 49017
- Reassigned Medicare billing, Michigan enrollment
- 557 clinicians in this Medicare group
Kalamazoo, MI 49007
- Reassigned Medicare billing, Michigan enrollment
- 1,133 clinicians in this Medicare group
Paw Paw, MI 49079
- Reassigned Medicare billing, Michigan enrollment
- 251 clinicians in this Medicare group
South Haven, MI 49090
- Reassigned Medicare billing, Michigan enrollment
- 190 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
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 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Bronson Methodist Hospital
Acute Care Hospitals · Kalamazoo, MIBronson Battle Creek Hospital
Acute Care Hospitals · Battle Creek, MIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 49014 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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.
BATTLE CREEK, MI 49014
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 Gianna Service's NPI number?
The NPI number for Gianna Service is 1013939859. It was assigned to this individual provider in the NPPES registry on July 24, 2006. The provider is also known as Gianna L Mckay MD.
Where is Gianna Service located?
Gianna Service practices at 485 Columbia Ave E Suite 11A, Battle Creek, MI 49014. The listed phone number is (269) 245-5430.
What is Gianna Service's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Gianna Service enrolled in Medicare?
Yes. Gianna Service 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 Gianna Service's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Gianna Service reassigns Medicare benefits to 4 organizations: Bronson Battle Creek Hospital (Battle Creek, MI), Bronson Methodist Hospital (Kalamazoo, MI), Bronson Lakeview Hospital (Paw Paw, MI) and Bronson South Haven Hospital (South Haven, MI). 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 Gianna Service's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Gianna Service accept?
Health plans from Blue Care Network of Michigan, Blue Cross Blue Shield of Michigan Mutual Insurance Company and Priority Health list Gianna Service 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 Gianna Service affiliated with any hospitals?
According to CMS data, Gianna Service is affiliated with Bronson Methodist Hospital and Bronson Battle Creek Hospital.
When was this NPI record last updated?
The NPPES record for Gianna Service was last updated on November 27, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Gianna L Service, MD · NPI 1013939859
Family Medicine physician in Battle Creek, Michigan. Individual provider, active in the CMS NPPES registry since July 24, 2006.
## Identity
- **NPI:** 1013939859 (Entity type: Individual)
- **Enumerated:** July 24, 2006
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **State license:** 4301087684 (Michigan)
- **Sole proprietor:** No
## Practice location
- **Address:** 485 COLUMBIA AVE E, SUITE 11A, Battle Creek, MI 49014-5499
- **Phone:** (269) 245-5430 · **Fax:** (269) 969-6049
## 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:** 4 organizations under Medicare reassignment (form CMS-855R): Bronson Battle Creek Hospital (NPI 1093119638, Battle Creek, MI); Bronson Methodist Hospital (NPI 1417961137, Kalamazoo, MI); Bronson Lakeview Hospital (NPI 1235131137, Paw Paw, MI); Bronson South Haven Hospital (NPI 1174749170, South Haven, MI) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Michigan State University College Of Human Medicine, class of 2003
## Record status
- **NPPES last updated:** November 27, 2023
---
Source: [NPI Profile](https://npiprofile.com/npi/1013939859) · Data from the CMS NPPES public registry.