ALAN JANSSEN DO
NPI 1124001011
Emergency Medicine - Emergency Medical Services in Grand Blanc, MI
About Alan Janssen Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ALAN JANSSEN DO (NPI 1124001011) is an individual emergency medical services provider in Grand Blanc, Michigan, licensed in Michigan (5101010657) and active in the NPI registry since November 2005. He is enrolled in Medicare PECOS, is affiliated with Ascension Genesys Hospital, and is a graduate of At Still University Of Health Sciences, College Of Osteo Med, Kirksville (1989).
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 6
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
Alan Janssen Do 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
2Medicare enrollment records show Alan Janssen reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Grand Blanc, MI 48439
- Reassigned Medicare billing, Michigan enrollment
- 41 clinicians in this Medicare group
Grand Blanc, MI 48439
- Reassigned Medicare billing, Michigan enrollment
- 43 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 3
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.
Ascension Genesys Hospital
Acute Care Hospitals · Grand Blanc, MIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 48439 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.
GRAND BLANC, MI 48439
GRAND BLANC, MI 48439
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 Alan Janssen's NPI number?
The NPI number for Alan Janssen is 1124001011. It was assigned to this individual provider in the NPPES registry on November 23, 2005.
Where is Alan Janssen located?
Alan Janssen practices at 1 Genesys Pkwy, Grand Blanc, MI 48439. The listed phone number is (810) 606-6137.
What is Alan Janssen's specialty?
The primary specialty registered for this NPI is Emergency Medicine, specializing in Emergency Medical Services, with taxonomy code 207PE0004X.
Is Alan Janssen enrolled in Medicare?
Yes. Alan Janssen 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 Alan Janssen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Alan Janssen reassigns Medicare benefits to 2 organizations: Emergency Medicine Physicians Of Genesee County, PLLC (Grand Blanc, MI) and Observation Medicine Group PLLC (Grand Blanc, 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 Alan Janssen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Alan Janssen accept?
Health plans from Blue Care Network of Michigan and Blue Cross Blue Shield of Michigan Mutual Insurance Company list Alan Janssen 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 Alan Janssen affiliated with any hospitals?
According to CMS data, Alan Janssen is affiliated with Ascension Genesys Hospital.
When was this NPI record last updated?
The NPPES record for Alan Janssen was last updated on March 6, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.
# Alan Janssen, DO · NPI 1124001011
Emergency Medical Services physician in Grand Blanc, Michigan. Individual provider, active in the CMS NPPES registry since November 23, 2005.
## Identity
- **NPI:** 1124001011 (Entity type: Individual)
- **Enumerated:** November 23, 2005
- **Primary specialty:** Emergency Medicine - Emergency Medical Services · taxonomy 207PE0004X
- **State license:** 5101010657 (Michigan)
- **Sole proprietor:** No
## Practice location
- **Address:** 1 GENESYS PKWY, Grand Blanc, MI 48439-8065
- **Phone:** (810) 606-6137
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Emergency Medicine Physicians Of Genesee County, PLLC (NPI 1275899171, Grand Blanc, MI); Observation Medicine Group PLLC (NPI 1194084111, Grand Blanc, MI) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** At Still University Of Health Sciences, College Of Osteo Med, Kirksville, class of 1989
## Record status
- **NPPES last updated:** March 6, 2008
- **Other identifiers:** Medicaid 2923371 (MI); Other AJ010657; Medicaid 3332908 (MI); and 3 more
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Source: [NPI Profile](https://npiprofile.com/npi/1124001011) · Data from the CMS NPPES public registry.