BRIAN A MASON MD
NPI 1952396780
Obstetrics & Gynecology - Maternal & Fetal Medicine in Detroit, MI
About Brian A Mason Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
BRIAN A MASON MD (NPI 1952396780) is an individual maternal & fetal medicine provider in Detroit, Michigan, licensed in Michigan (4301061136) and active in the NPI registry since September 2005. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 4
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Brian A Mason Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
3Medicare enrollment records show Brian Mason reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Detroit, MI 48236
- Reassigned Medicare billing, Michigan enrollment
- 520 clinicians in this Medicare group
Warren, MI 48093
- Reassigned Medicare billing, Michigan enrollment
- 161 clinicians in this Medicare group
Southfield, MI 48075
- Reassigned Medicare billing, Michigan enrollment
- Medicare enrollment name: Henry Ford Health Providence Hospital
- 393 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 48236 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Reported Quality Measures
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.
DETROIT, MI 48236
DETROIT, MI 48236
DETROIT, MI 48236
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 Brian Mason's NPI number?
The NPI number for Brian Mason is 1952396780. It was assigned to this individual provider in the NPPES registry on September 19, 2005.
Where is Brian Mason located?
Brian Mason practices at 22151 Moross Rd 313, Detroit, MI 48236. The listed phone number is (313) 343-3494.
What is Brian Mason's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology, specializing in Maternal & Fetal Medicine, with taxonomy code 207VM0101X.
Is Brian Mason enrolled in Medicare?
Yes. Brian Mason is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Brian Mason's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Brian Mason reassigns Medicare benefits to 3 organizations: Henry Ford Health St. John Hospital (Detroit, MI), Henry Ford Health Macomb-Oakland Hospital (Warren, MI) and Ascension Providence Hospital (Southfield, 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 Brian Mason's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Brian Mason was last updated on May 12, 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.