JOHN C. EGGENBERGER M.D.
NPI 1225191844
Colon & Rectal Surgery in Ypsilanti, MI
About John C. Eggenberger M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOHN C. EGGENBERGER M.D. (NPI 1225191844) is an individual colon & rectal surgery provider in Ypsilanti, Michigan, licensed in Michigan (4301405869) and active in the NPI registry since December 2006. He is enrolled in Medicare PECOS, is affiliated with St Joe Mercy Hospital System Livonia, and maintains a secondary practice location in Detroit.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Other Identifiers 4
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
John C. Eggenberger M.d. 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 John Eggenberger reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Ypsilanti, MI 48197
- Reassigned Medicare billing, Michigan enrollment
- Medicare enrollment name: Iha Health Services Corporation
- 1,480 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 4
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 4
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
St Joe Mercy Hospital System Livonia
Acute Care Hospitals · Livonia, MISaint Joseph Mercy Livingston Hospital
Acute Care Hospitals · Howell, MITrinity Health Ann Arbor Hospital
Acute Care Hospitals · Ann Arbor, MIChelsea Hospital
Acute Care Hospitals · Chelsea, MIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 48197 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 17
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 4
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
YPSILANTI, MI 48197
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 John Eggenberger's NPI number?
The NPI number for John Eggenberger is 1225191844. It was assigned to this individual provider in the NPPES registry on December 18, 2006.
Where is John Eggenberger located?
John Eggenberger practices at 5325 Elliott Dr Ste 104, Ypsilanti, MI 48197. The listed phone number is (734) 712-8150.
What is John Eggenberger's specialty?
The primary specialty registered for this NPI is Colon & Rectal Surgery with taxonomy code 208C00000X.
Is John Eggenberger enrolled in Medicare?
Yes. John Eggenberger 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 John Eggenberger's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Eggenberger reassigns Medicare benefits to Iha Health Services Organization (Ypsilanti, MI). 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 John Eggenberger's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does John Eggenberger accept?
Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian, Blue Care Network of Michigan and Blue Cross Blue Shield of Michigan Mutual Insurance Company and 1 other insurer list John Eggenberger 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 John Eggenberger affiliated with any hospitals?
According to CMS data, John Eggenberger is affiliated with St Joe Mercy Hospital System Livonia, Saint Joseph Mercy Livingston Hospital, Trinity Health Ann Arbor Hospital and Chelsea Hospital.
When was this NPI record last updated?
The NPPES record for John Eggenberger was last updated on July 21, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# John C. Eggenberger, M.D. · NPI 1225191844
Colon & Rectal Surgery physician in Ypsilanti, Michigan. Individual provider, active in the CMS NPPES registry since December 18, 2006.
## Identity
- **NPI:** 1225191844 (Entity type: Individual)
- **Enumerated:** December 18, 2006
- **Primary specialty:** Colon & Rectal Surgery · taxonomy 208C00000X
- **State license:** 4301405869 (Michigan)
- **Sole proprietor:** No
## Practice location
- **Address:** 5325 ELLIOTT DR STE 104, Ypsilanti, MI 48197-8633
- **Phone:** (734) 712-8150 · **Fax:** (734) 712-8151
## 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:** Iha Health Services Organization (NPI 1487072633, Ypsilanti, MI), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Michigan Medical School, class of 1985
## Record status
- **NPPES last updated:** July 21, 2022
- **Other identifiers:** Other 280H264470; Other JE405869; Other JE405869; and 1 more
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Source: [NPI Profile](https://npiprofile.com/npi/1225191844) · Data from the CMS NPPES public registry.