QUENTIN MATTERN MD
NPI 1003996158
Family Medicine in Milwaukee, WI
About Quentin Mattern Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
QUENTIN MATTERN MD (NPI 1003996158) is an individual family medicine provider in Milwaukee, Wisconsin, licensed in Wisconsin (44079) and active in the NPI registry since October 2006. He is enrolled in Medicare PECOS, is affiliated with Ascension Columbia St Mary's Hospital Milwaukee, and is a graduate of Rush Medical College Of Rush University (2000).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 2
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
Quentin Mattern 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
2Medicare enrollment records show Quentin Mattern reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Milwaukee, WI 53211
- Reassigned Medicare billing, Wisconsin enrollment
- Medicare enrollment name: Columbia St Marys Hospital Milwaukee Inc
- 856 clinicians in this Medicare group
Glendale, WI 53212
- Reassigned Medicare billing, Wisconsin enrollment
- 62 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.
Ascension Columbia St Mary's Hospital Milwaukee
Acute Care Hospitals · Milwaukee, WIOrthopaedic Hospital Of Wisconsin
Acute Care Hospitals · Glendale, WIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 53211 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 10
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 Quentin Mattern's NPI number?
The NPI number for Quentin Mattern is 1003996158. It was assigned to this individual provider in the NPPES registry on October 16, 2006.
Where is Quentin Mattern located?
Quentin Mattern practices at 2320 N Lake Dr Room 3603, Milwaukee, WI 53211. The listed phone number is (414) 270-4932.
What is Quentin Mattern's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Quentin Mattern enrolled in Medicare?
Yes. Quentin Mattern 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 Quentin Mattern's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Quentin Mattern reassigns Medicare benefits to 2 organizations: Columbia St. Mary's Hospital Milwaukee, Inc (Milwaukee, WI) and Orthopaedic Hospital Of Wisconsin, LLC (Glendale, WI). 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 Quentin Mattern's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Quentin Mattern accept?
Health plans from Anthem Blue Cross and Blue Shield list Quentin Mattern 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 Quentin Mattern affiliated with any hospitals?
According to CMS data, Quentin Mattern is affiliated with Ascension Columbia St Mary's Hospital Milwaukee and Orthopaedic Hospital Of Wisconsin.
When was this NPI record last updated?
The NPPES record for Quentin Mattern was last updated on May 26, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.
# Quentin Mattern, MD · NPI 1003996158
Family Medicine physician in Milwaukee, Wisconsin. Individual provider, active in the CMS NPPES registry since October 16, 2006.
## Identity
- **NPI:** 1003996158 (Entity type: Individual)
- **Enumerated:** October 16, 2006
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **State license:** 44079 (Wisconsin)
- **Sole proprietor:** No
## Practice location
- **Address:** 2320 N LAKE DR, ROOM 3603, Milwaukee, WI 53211-4507
- **Phone:** (414) 270-4932
## 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): Columbia St. Mary's Hospital Milwaukee, Inc (NPI 1023064482, Milwaukee, WI); Orthopaedic Hospital Of Wisconsin, LLC (NPI 1669584983, Glendale, WI) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Rush Medical College Of Rush University, class of 2000
## Record status
- **NPPES last updated:** May 26, 2011
- **Other identifiers:** Medicaid 34162200 (WI); Medicare UPIN H54935 (WI)
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Source: [NPI Profile](https://npiprofile.com/npi/1003996158) · Data from the CMS NPPES public registry.