SUMMER CALLAHAN
NPI 1700752128
Nurse Practitioner - Family in Lake Orion, MI
About Summer Callahan NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
SUMMER CALLAHAN (NPI 1700752128) is an individual family provider in Lake Orion, Michigan, licensed in Michigan (4704406605) and active in the NPI registry since October 2025. She is enrolled in Medicare PECOS and is a graduate of Other (2023).
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
Summer Callahan 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 Summer Callahan reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Southgate, MI 48195
- Reassigned Medicare billing, Michigan enrollment
- 2 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 48362 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 Summer Callahan's NPI number?
The NPI number for Summer Callahan is 1700752128. It was assigned to this individual provider in the NPPES registry on October 13, 2025.
Where is Summer Callahan located?
Summer Callahan practices at 720 N Lapeer Rd Ste 202, Lake Orion, MI 48362. The listed phone number is (248) 690-7243.
What is Summer Callahan's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Summer Callahan enrolled in Medicare?
Yes. Summer Callahan 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 Summer Callahan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Summer Callahan reassigns Medicare benefits to Hyperwell Oxygen Centers LLC (Southgate, 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 Summer Callahan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Summer Callahan accept?
Health plans from Blue Care Network of Michigan, Blue Cross Blue Shield of Michigan Mutual Insurance Company and Priority Health list Summer Callahan 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.
When was this NPI record last updated?
The NPPES record for Summer Callahan was last updated on October 13, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 months 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.
# Summer Callahan · NPI 1700752128
Family physician in Lake Orion, Michigan. Individual provider, active in the CMS NPPES registry since October 13, 2025.
## Identity
- **NPI:** 1700752128 (Entity type: Individual)
- **Enumerated:** October 13, 2025
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** 4704406605 (Michigan)
- **Sole proprietor:** No
## Practice location
- **Address:** 720 N LAPEER RD STE 202, Lake Orion, MI 48362-4011
- **Phone:** (248) 690-7243
## 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:** Hyperwell Oxygen Centers LLC (NPI 1811867781, Southgate, MI), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2023
## Record status
- **NPPES last updated:** October 13, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1700752128) · Data from the CMS NPPES public registry.