DR. BRIGID ELLEN GREGG
NPI 1467698696
Pediatrics - Pediatric Endocrinology in Middleton, WI
About Dr. Brigid Ellen Gregg NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. BRIGID ELLEN GREGG (NPI 1467698696) is an individual pediatric endocrinology provider in Middleton, Wisconsin, licensed in Wisconsin (87351-20) and active in the NPI registry since December 2008. She is enrolled in Medicare PECOS, maintains a secondary practice location in Ann Arbor, and is a graduate of Other (2004).
NPPES Registry Identity
Specialties & Licenses 2
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 (PECOS)
Dr. Brigid Ellen Gregg is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Brigid Gregg reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Middleton, WI 53562
- Reassigned Medicare billing, Wisconsin enrollment
- 2,832 clinicians in this Medicare group
Traverse City, MI 49684
- Reassigned Medicare billing, Michigan enrollment
- 2,377 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 53562 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 Brigid Gregg's NPI number?
The NPI number for Brigid Gregg is 1467698696. It was assigned to this individual provider in the NPPES registry on December 17, 2008.
Where is Brigid Gregg located?
Brigid Gregg practices at 2275 Deming Way, Middleton, WI 53562. The listed phone number is (608) 915-0450.
What is Brigid Gregg's specialty?
The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Endocrinology, with taxonomy code 2080P0205X.
Is Brigid Gregg enrolled in Medicare?
Yes. Brigid Gregg is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Brigid Gregg's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Brigid Gregg reassigns Medicare benefits to 2 organizations: University Of Wisconsin Medical Foundation, Inc (Middleton, WI) and Regents Of The University Of Michigan (Traverse City, 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 Brigid Gregg's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Brigid Gregg accept?
Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian, Anthem Blue Cross and Blue Shield and Aspirus Health Plan and 5 other insurers list Brigid Gregg 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 Brigid Gregg was last updated on June 17, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# Dr. Brigid Ellen Gregg · NPI 1467698696
Pediatric Endocrinology physician in Middleton, Wisconsin. Individual provider, active in the CMS NPPES registry since December 17, 2008.
## Identity
- **NPI:** 1467698696 (Entity type: Individual)
- **Enumerated:** December 17, 2008
- **Primary specialty:** Pediatrics - Pediatric Endocrinology · taxonomy 2080P0205X
- **State license:** 87351-20 (Wisconsin)
- **Sole proprietor:** No
## Practice location
- **Address:** 2275 DEMING WAY, Middleton, WI 53562-5527
- **Phone:** (608) 915-0450
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **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): University Of Wisconsin Medical Foundation, Inc (NPI 1598784555, Middleton, WI); Regents Of The University Of Michigan (NPI 1992081640, Traverse City, MI) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2004
## Record status
- **NPPES last updated:** June 17, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1467698696) · Data from the CMS NPPES public registry.