ARIEL ELIZABETH BADGER MD
NPI 1285376608
Family Medicine in Walnut Creek, CA
About Ariel Elizabeth Badger Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ARIEL ELIZABETH BADGER MD (NPI 1285376608) is an individual family medicine provider in Walnut Creek, California, licensed in California (A202597) and active in the NPI registry since April 2022. She is enrolled in Medicare PECOS and is a graduate of Other (2022).
NPPES Registry Identity
Specialties & Licenses
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
Ariel Elizabeth Badger 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 Reassignment
Medicare enrollment records show Ariel Badger reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Walnut Creek, CA 94597
- Reassigned Medicare billing, California enrollment
- 650 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 94597 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.
WALNUT CREEK, CA 94597
WALNUT CREEK, CA 94597
WALNUT CREEK, CA 94597
WALNUT CREEK, CA 94597
WALNUT CREEK, CA 94597
WALNUT CREEK, CA 94597
WALNUT CREEK, CA 94597
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 Ariel Badger's NPI number?
The NPI number for Ariel Badger is 1285376608. It was assigned to this individual provider in the NPPES registry on April 7, 2022.
Where is Ariel Badger located?
Ariel Badger practices at 1450 Treat Blvd Ste 320, Walnut Creek, CA 94597. The listed phone number is (925) 296-9880.
What is Ariel Badger's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Ariel Badger enrolled in Medicare?
Yes. Ariel Badger 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 organization bills Medicare for Ariel Badger's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ariel Badger reassigns Medicare benefits to John Muir Physician Network (Walnut Creek, CA). The 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 Ariel Badger'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 Ariel Badger was last updated on July 16, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.
# Ariel Elizabeth Badger, MD · NPI 1285376608
Family Medicine physician in Walnut Creek, California. Individual provider, active in the CMS NPPES registry since April 7, 2022.
## Identity
- **NPI:** 1285376608 (Entity type: Individual)
- **Enumerated:** April 7, 2022
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **State license:** A202597 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 1450 TREAT BLVD STE 320, Walnut Creek, CA 94597-2168
- **Phone:** (925) 296-9880
## 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:** John Muir Physician Network (NPI 1841407665, Walnut Creek, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2022
## Record status
- **NPPES last updated:** July 16, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1285376608) · Data from the CMS NPPES public registry.