DR. CHRISTOPHER GAPPY M.D.
NPI 1417167198
Ophthalmology in Ann Arbor, MI
About Dr. Christopher Gappy M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. CHRISTOPHER GAPPY M.D. (NPI 1417167198) is an individual ophthalmology provider in Ann Arbor, Michigan, licensed in Michigan (4301086156) and active in the NPI registry since May 2007. He is enrolled in Medicare PECOS, is affiliated with University Of Michigan Health System, and is a graduate of Wayne State University School Of Medicine (2005).
NPPES Registry Identity
Specialties & Licenses
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
Dr. Christopher Gappy 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 Reassignments
3Medicare enrollment records show Christopher Gappy reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Ann Arbor, MI 48105
- Reassigned Medicare billing, Michigan enrollment
- 123 clinicians in this Medicare group
Waterford, MI 48328
- Reassigned Medicare billing, Michigan enrollment
- 139 clinicians in this Medicare group
Mason, MI 48854
- Reassigned Medicare billing, Michigan enrollment
- 916 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
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
University Of Michigan Health System
Acute Care Hospitals · Ann Arbor, MIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 48105 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 Christopher Gappy's NPI number?
The NPI number for Christopher Gappy is 1417167198. It was assigned to this individual provider in the NPPES registry on May 23, 2007.
Where is Christopher Gappy located?
Christopher Gappy practices at 1000 Wall Street, Ann Arbor, MI 48105. The listed phone number is (734) 764-4190.
What is Christopher Gappy's specialty?
The primary specialty registered for this NPI is Ophthalmology with taxonomy code 207W00000X.
Is Christopher Gappy enrolled in Medicare?
Yes. Christopher Gappy 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 Christopher Gappy's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Christopher Gappy reassigns Medicare benefits to 3 organizations: Regents Of The University Of Michigan (Ann Arbor, MI), Sjmh Medical Practice-Smhc (Waterford, MI) and Edward W. Sparrow Hospital Association (Mason, 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 Christopher Gappy's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Christopher Gappy 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 4 other insurers list Christopher Gappy 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 Christopher Gappy affiliated with any hospitals?
According to CMS data, Christopher Gappy is affiliated with University Of Michigan Health System.
When was this NPI record last updated?
The NPPES record for Christopher Gappy was last updated on June 2, 2009. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.
# Dr. Christopher Gappy, M.D. · NPI 1417167198
Ophthalmology physician in Ann Arbor, Michigan. Individual provider, active in the CMS NPPES registry since May 23, 2007.
## Identity
- **NPI:** 1417167198 (Entity type: Individual)
- **Enumerated:** May 23, 2007
- **Primary specialty:** Ophthalmology · taxonomy 207W00000X
- **State license:** 4301086156 (Michigan)
- **Sole proprietor:** No
## Practice location
- **Address:** 1000 WALL STREET, Ann Arbor, MI 48105-1912
- **Phone:** (734) 764-4190
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): Regents Of The University Of Michigan (NPI 1568495299, Ann Arbor, MI); Sjmh Medical Practice-Smhc (NPI 1366644551, Waterford, MI); Edward W. Sparrow Hospital Association (NPI 1689683641, Mason, MI) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Wayne State University School Of Medicine, class of 2005
## Record status
- **NPPES last updated:** June 2, 2009
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Source: [NPI Profile](https://npiprofile.com/npi/1417167198) · Data from the CMS NPPES public registry.