COLIN JANTZ MCMAHON MD
NPI 1225618150
Emergency Medicine in Detroit, MI
About Colin Jantz Mcmahon Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
COLIN JANTZ MCMAHON MD (NPI 1225618150) is an individual emergency medicine provider in Detroit, Michigan, licensed in Michigan (4301513931) and active in the NPI registry since April 2021. He is enrolled in Medicare PECOS, is affiliated with Sinai-grace Hospital, and maintains a secondary practice location in Grand Rapids.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 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
Colin Jantz Mcmahon 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
3Medicare enrollment records show Colin Mcmahon reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Detroit, MI 48202
- Reassigned Medicare billing, Michigan enrollment
- 1,886 clinicians in this Medicare group
Detroit, MI 48201
- Reassigned Medicare billing, Michigan enrollment
- 84 clinicians in this Medicare group
Detroit, MI 48201
- Reassigned Medicare billing, Michigan enrollment
- 83 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.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Sinai-Grace Hospital
Acute Care Hospitals · Detroit, MIHenry Ford Health Hospital
Acute Care Hospitals · Detroit, MIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 48202 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 Colin Mcmahon's NPI number?
The NPI number for Colin Mcmahon is 1225618150. It was assigned to this individual provider in the NPPES registry on April 13, 2021.
Where is Colin Mcmahon located?
Colin Mcmahon practices at 2799 W Grand Blvd, Detroit, MI 48202. The listed phone number is (313) 916-1545.
What is Colin Mcmahon's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Colin Mcmahon enrolled in Medicare?
Yes. Colin Mcmahon 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 Colin Mcmahon's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Colin Mcmahon reassigns Medicare benefits to 3 organizations: Henry Ford Health System (Detroit, MI), Medical Center Emergency Services (Detroit, MI) and Michigan Emergency Services (Detroit, 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 Colin Mcmahon's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Colin Mcmahon accept?
Health plans from Blue Care Network of Michigan and Blue Cross Blue Shield of Michigan Mutual Insurance Company list Colin Mcmahon 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 Colin Mcmahon affiliated with any hospitals?
According to CMS data, Colin Mcmahon is affiliated with Sinai-Grace Hospital and Henry Ford Health Hospital.
When was this NPI record last updated?
The NPPES record for Colin Mcmahon was last updated on April 27, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.
# Colin Jantz Mcmahon, MD · NPI 1225618150
Emergency Medicine physician in Detroit, Michigan. Individual provider, active in the CMS NPPES registry since April 13, 2021.
## Identity
- **NPI:** 1225618150 (Entity type: Individual)
- **Enumerated:** April 13, 2021
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 4301513931 (Michigan)
- **Sole proprietor:** No
## Practice location
- **Address:** 2799 W GRAND BLVD, Detroit, MI 48202-2608
- **Phone:** (313) 916-1545
## 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): Henry Ford Health System (NPI 1003990318, Detroit, MI); Medical Center Emergency Services (NPI 1902855711, Detroit, MI); Michigan Emergency Services (NPI 1316968191, Detroit, MI) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Michigan Medical School, class of 2021
## Record status
- **NPPES last updated:** April 27, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1225618150) · Data from the CMS NPPES public registry.